taxonID	type	description	language	source
729F632C36768D00C613BB8F11D162FA.taxon	diagnosis	Diagnosis. Male dichoptic. Both sexes with bare, medial vitta extending ventrally from oral margin, usually to base of antenna, except interrupted by pruinosity at facial tubercle in S. interrupta and only extending to facial tubercle in S. metallica. Gena bare. Katepimeron bare. Scutellum with at least anterior margin densely pruinose. Narrow intersection of vein R 1 with vein C. Anterior ventral half of vein C before crossvein h without setae. Distance between apices of veins R 1 and R 2 + 3 longer than distance between apices of veins R 2 + 3 and vein R 4 + 5 + M 1. Abdominal pile erect. Phallapodeme banana-shaped.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
729F632C36768D00C613BB8F11D162FA.taxon	distribution	Distribution. 13 Nearctic (12 Western, 1 Eastern) and 3 Palaearctic species.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
21A8B55B681AEB9233F5F9432FD1ED67.taxon	diagnosis	Diagnosis. Species similar to S. pseudosphecomima or S. tsherepanovi but can be distinguished by the following characters: cell c bare on basal two-thirds; ocellar triangle pale pilose; silver-yellow pruinose; basiphallus as in Fig. 2 A.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
21A8B55B681AEB9233F5F9432FD1ED67.taxon	distribution	Distribution. Far Eastern Russia including Sakhalin Island and westerly into Eastern Siberia (Fig. 24).	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
21A8B55B681AEB9233F5F9432FD1ED67.taxon	biology_ecology	Biology. Collected visiting flowers of Cornus alba (L.) Opiz, Weigela middendorffiana C. Koch, Rhododendron aureum Georgi, and Rhododendron dauricum L. Known to hilltop. Recorded flying in June and July.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
A7803E3E1547B9C143A8E9764411EAC8.taxon	diagnosis	Diagnosis. Species most similar to S. interrupta sp. n. and S. sexfasciata sp. n. but can be distinguished by the following characters: scutum with two pairs of pruinose vittae; cell c completely microtrichose; antenna possessing a 2: 2: 1 ratio of segments; frons bare; anepimeron not pruinose; anterior three-fourths of scutellum pruinose; medial facial vitta not interrupted by a spot of pruinosity.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
A7803E3E1547B9C143A8E9764411EAC8.taxon	distribution	Distribution. U. S. A.: Washington, Oregon, California, Idaho, and Montana. Canada: Alberta and British Columbia (Fig. 23). Extends south from southern British Columbia, as well as the southeastern corner of Alberta, through the coastal and mountainous areas of Washington state, through Oregon and into the Sierra Nevada and midcoastal regions of California. Also known from forested regions of northern Idaho and western Montana.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
A7803E3E1547B9C143A8E9764411EAC8.taxon	biology_ecology	Biology. Collected visiting flowers of Vaccinium L. sp., Phacelia Juss. sp., Ceanothus L. sp. and Berberis aquifolium Pursh. Recorded flying late April through late July, with one outlier in late August.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
B36A7D986B8AC6DE0179C828A3BA8780.taxon	diagnosis	Diagnosis. It can be confused with S. cryptica sp. n., S. dyari, S. hoguei sp. n., S. oraria sp. n., and S. pattonii but is distinguished by a tergite 1 densely pruinose only in the posterior corners.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
B36A7D986B8AC6DE0179C828A3BA8780.taxon	distribution	Distribution. Canada: British Columbia. U. S. A.: Washington (Fig. 26). Known from two close localities on the central coast of British Columbia and several clustered localities in southeastern Washington.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
B36A7D986B8AC6DE0179C828A3BA8780.taxon	biology_ecology	Biology. Collected visiting flowers of Heracleum maximum W. Bartram. Recorded flying April through June.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
6FA476857626F0070079A1E500887B11.taxon	diagnosis	Diagnosis. Species similar to S. columbiana, S. dyari, S. hoguei sp. n., S. oraria sp. n., and S. pattonii but can be distinguished by the following characters: tergite 1 with uninterrupted, pruinose band along posterior margin; scutellum mixed black and yellow pilose; ventral calypter with long yellow pile; sternites 2 to 4 almost completely pruinose, with a triangular region of non-pruinosity posteromedially.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
6FA476857626F0070079A1E500887B11.taxon	description	Description. Male. Body length: 11.9 - 14.2 mm. Wing length: 8.9 - 10.7 mm. Head. Face yellow pruinose with shiny, black, medial vitta extending from oral margin to base of antenna; frons broad, about as long as broad at antenna, two-thirds as broad at vertex as at antenna, bare, with yellow pruinosity along posterior third; vertex tri angular, longer than broad, shiny, with ocellar triangle black pilose; postocular border yellow pruinose; postocular pile black; occipital pile yellow; male narrowly dichoptic; antenna black, black pilose, length of segments roughly in a 3: 3: 2 ratio. Thorax. Sub-shiny black; postpronotum yellow pilose; scutum yellow pilose, except with black pile posteromedially; scutellum mostly yellow pilose with occasional black pile; postalar callus, proepimeron, posterior anepisternum yellow pilose; posterior katepisternum yellow pilose with broadly separated patches; anterior anepimeron yellow pilose; metasternum yellow pilose; postpronotum, anterior fourth of scutellum, broad posterior margin of anepisternum and dorso-posterior corner of katepisternum yellow pruinose; area between postpronota weakly yellow pruinose, except shiny medially; anepimeron shiny; scutum without pruinose vittae; ventral calypter with long yellow pile. Legs. Foreleg black, except extreme apex of femur and anterior third of tibia reddish-yellow; fore tarsi slightly broadened; midleg reddish-yellow, except last two tarsomeres black; hind leg reddish-yellow, except last two tarsomeres black; legs yellow pilose, except, fore tibia, fore tarsi, extreme apex of fore femur and last two mid and hind tarsomeres black pilose; hind coxa yellow pruinose. Wing. Hyaline; microtrichia absent from following areas: cell bc; cell r 1 from base to about halfway to crossvein r-m; broad basal portion of cell br (before origin of M) and about basal two-fifths of narrower portion of this cell (caudad of spurious vein only); cell bm, except apex and narrow anterior and posterior margins of about apical fourth; broad anterior margin of cell cua; narrow, elongate, oval area proximal to vein A 1. Abdomen. Tergites and sternites shiny to sub-shiny, black with yellow pruinose markings as follows: tergite 1 pruinose along posterior margin; tergite 2 with broad, interrupted, truncate medial band which meets a narrow, uninterrupted posterior band in the posterolateral corners of tergite; tergite 3 with similar medial band, but more narrowly interrupted; pattern on tergite 4 same as tergite 3 except medial band very narrowly or incompletely interrupted; sternite 1 shiny; sternites 2 to 4 almost completely pruinose, with a triangular region of non-pruinosity posteromedially; sternites 6 to 8 pruinose; pile of abdomen yellow, except sometimes with scattered black pile present on postabdomen. Male genitalia. Surstylus elongated, about twice as long as broad, curving upward dorsally; pile on dorsal surface of surstylus, increasing in length posteriorly; minute spines on ventral surface, with apical three-fourths of lateral inter surface also with spines; basal fourth of the ventral surface of the surstylus produced into a lobe directed anteriorly, with no minute pubescence present; cerci rounded, with invagination on posterior border; aedeagus as in Fig. 2 D.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
6FA476857626F0070079A1E500887B11.taxon	distribution	Distribution. U. S. A.: Oregon (Fig. 25). Restricted to the Oregon portion of the Cascade Range. Etymology. The specific epithet is derived from the Greek kryptos (Brown 1956: 241), which means hidden or secret and references the difficulty of distinguishing this species from S. dyari and S. pattonii.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
6FA476857626F0070079A1E500887B11.taxon	biology_ecology	Biology. Cole and Lovett (1921) misidentified specimens Lovett collected as S. pattonii. Lovett noted he observed them " entirely in the forenoon, occurring just at the edge of clearings and flying swiftly, close to the ground, resting occasionally in low growing shrubbery at the very edge of dense forests ". They have been collected visiting flowers of Prunus virginiana var. demissa (Nutt. ex Torr. and A. Gray) Torr. A specimen collected by Bridwell notes it was collected in the sup-alpine region. Recorded flying June through August.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
2B7E50DF8472146690C99CB82FBB09F0.taxon	diagnosis	Diagnosis. Can be confused with S. columbiana, S. cryptica sp. n., S. hoguei sp. n., S. oraria sp. n., and S. pattonii but can be distinguished by the following characters: Tergite 1 with uninterrupted, pruinose band along posterior margin. Scutellum mixed black and yellow pilose. Ventral calypter with long yellow pile. Sternites 2 to 4 with a posteromedial, triangular region of non-pruinosity on sternites 2 to 4 that is smaller on ensuing sternites. The species can only be distinguished from S. hoguei sp. n. by male genitalia in which the narrowest part of the surstylus is about one-fourth the width of base.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
2B7E50DF8472146690C99CB82FBB09F0.taxon	distribution	Distribution. U. S. A.: California, Oregon and Nevada (Fig. 25). Throughout the Sierra Nevada Mountains and Warner Mountains along with the portions of the Cascade Range, Klamath Mountains and the Northern Coast Ranges surrounding the Great Valley.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
2B7E50DF8472146690C99CB82FBB09F0.taxon	biology_ecology	Biology. Species collected visiting flowers Ceanothus cuneatus (Hook.) Nutt. and recorded leafsitting on Veratrum californicum Durand. Recorded flying mid-May through mid-August.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
66DC9AB6550DA191BBC6724921390BAA.taxon	diagnosis	Diagnosis. It can be confused with S. columbiana, S. cryptica sp. n., S. dyari, S. oraria sp. n. and S. pattonii but can be distinguished by the following characters: tergite 1 with uninterrupted, pruinose band along posterior margin; scutellum mixed black and yellow pilose; ventral calypter with long yellow pile; sternites 2 to 4 with a posteromedial, triangular region of non-pruinosity on sternites 2 to 4 that is smaller on ensuing sternites. The species can only be distinguished from S. hoguei sp. n. by male genitalia in which the narrowest part of the surstylus is about one half the width of base.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
66DC9AB6550DA191BBC6724921390BAA.taxon	description	Description. Male. Body length: 12.5 - 14.7 mm. Wing length: 8.8 - 10.5 mm. Head. Face yellow pruinose with shiny, black, medial vitta extending from oral margin to base of antenna; frons broad, about as long as broad at antenna, two-thirds as broad at vertex as at antenna, bare, with yellow pruinosity along posterior three-fourths; vertex triangular, longer than broad, shiny, with ocellar triangle black pilose; postocular border yellow pruinose; postocular and occipital pile yellow; male narrowly dichoptic; antenna black, black pilose, length of segments roughly in a 3: 3: 2 ratio. Thorax. Copper shine; postpronotum, scutum and scutellum yellow pilose, except scutum with black pile posteromedially; postalar callus, proepimeron, posterior anepisternum yellow pilose; posterior katepisternum yellow pilose with broadly separated patches; anterior anepimeron yellow pilose; metasternum yellow pilose; postpronotum, anterior fourth of scutellum, broad posterior margin of anepisternum and dorso-posterior corner of katepisternum yellow pruinose; area between postpronota yellow pruinose, except shiny medially; anepimeron shiny; scutum without pruinose vittae; ventral calypter with long yellow pile. Legs. Foreleg black, except extreme apex of femur and anterior third of tibia reddish-yellow; fore tarsi slightly broadened; midleg reddish-yellow, except basal four-fifths of femur and last two tarsomeres black; hind leg reddish-yellow, except basal four-fifths of femur and last two tarsomeres black; legs yellow pilose, except fore tibia, fore tarsi, apex of fore femur and last two mid and hind tarsomeres black pilose; hind coxa yellow pruinose. Wing. Hyaline; microtrichia absent from following areas: cell bc; cell r 1 from base to about halfway to crossvein r-m; broad basal portion of cell br (before origin of M) and about basal two-fifths of narrower portion of this cell (caudad of spurious vein only); cell bm, except apex and narrow anterior and posterior margins of about apical fourth; broad anterior margin of cell cua; narrow, elongate, oval area proximal to vein A 1. Abdomen. Tergites and sternites shiny to sub-shiny, black with yellow pruinose markings as follows: tergite 1 pruinose along posterior margin; tergite 2 with broad, interrupted, truncate medial band which meets a narrow, uninterrupted posterior band in the posterolateral corners of tergite; tergite 3 with similar medial band, but more narrowly interrupted; pattern on tergite 4 same as tergite 3 except medial band very narrowly or incompletely interrupted; sternite 1 shiny; sternites 2 to 4 almost completely pruinose, with a triangular region of non-pruinosity posteromedially, with each ensuing region smaller; sternites 6 to 8 pruinose; abdominal pile yellow. Male genitalia. Surstylus elongated, curving upward dorsally, more than three times as long as broad, no less than half the width of base at narrowest point; pile on dorsal surface of surstylus, symmetric in length; minute spines on ventral surface, with apical four-fifths of lateral inner surface also with spines; basal fourth of the ventral surface of the surstylus not produced into a lobe, with no invagination or minute pubescence present; cerci with slight invagination on posterior border; aedeagus as in Fig. 2 F.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
66DC9AB6550DA191BBC6724921390BAA.taxon	distribution	Distribution. U. S. A.: California (Fig. 25). Known from San Gabriel, San Bernardino, and San Jacinto mountains.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
66DC9AB6550DA191BBC6724921390BAA.taxon	biology_ecology	Biology. Collected visiting flowers of Frangula californica (Eschsch.) A. Gray. Recorded flying late May through early July. Etymology. The specific epithet honors J. N. (Jim) Hogue who collected many of the specimens of S. hoguei sp. n., S. interrupta sp. n., and S. sexfasciata sp. n.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
75E26B08EE8C7081E6991D837BC72AAA.taxon	diagnosis	Diagnosis. Species similar to S. brevicornis and S. sexfasciata sp. n. but can be distinguished by the following characters: scutum with two pairs of pruinose vittae; cell c completely microtrichose; antenna possessing a 3: 3: 2 ratio of segments; frons bare; anepimeron not pruinose; scutellum entirely pruinose; medial facial vitta interrupted by a macula of pruinosity on tubercle.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
75E26B08EE8C7081E6991D837BC72AAA.taxon	description	Description. Male. Body length: 12.5 - 14.0 mm. Wing length: 8.9 - 10.7 mm. Head. Face yellow pruinose with shiny, black, medial vitta extending from oral margin to base of antenna, except interrupted on facial tubercle by yellow pruinosity; frons broad, about as long as broad at antenna, two-thirds as broad at vertex as at antenna, bare, with yellow pruinosity along posterior half; vertex triangular, longer than broad, shiny, with ocellar triangle black pilose; postocular border yellow pruinose; postocular pile black; occipital pile yellow; male narrowly dichoptic; antenna black, black pilose, with length of segments roughly in a 3: 3: 2 ratio. Thorax. Matte black; postpronotum yellow pilose; scutum yellow pilose, except with black pile posteromedially; scutellum, postalar callus, proepimeron, posterior anepisternum yellow pilose; posterior katepisternum yellow pilose with broadly separated patches; anterior anepimeron yellow pilose; metasternum yellow pilose; postpronotum, anterior three-fourths of scutellum, broad posterior margin of anepisternum and dorso-posterior corner of katepisternum yellow pruinose; anepimeron shiny; scutum with two pairs of pruinose vittae: anterior pair long, running from anterior edge of scutum to transverse suture; posterior pair shorter and terminating before posterior edge; ventral calypter with long yellow pile. Legs. Foreleg reddish-yellow, except basal four-fifths of femur and last two tarsomeres black; midleg reddish-yellow, except basal four-fifths of femur and last two tarsomeres black; hind leg reddish-yellow, except last two tarsomeres black; legs yellow pilose, except black pilose on last three tarsomeres; hind coxa yellow pruinose. Wing. Hyaline; microtrichia absent from following areas: cell bc; narrow anteromedial region of cell bm; broad anterior margin of cell cua. Abdomen. Tergites and sternites shiny to sub-shiny, black with yellow pruinose markings as follows: tergite 1 pruinose along posterior margin; tergite 2 with broad, interrupted, truncate medial band which meets a broad, uninterrupted posterior band in the posterolateral corners of tergite; tergite 3 with broad medial band, sometimes very narrowly interrupted, that joins with broad posterior band in two places creating a medial diamond-shaped spot of no pruinosity; pattern on tergite 4 same as tergite 3; sternite 1 pruinose on posterior half; sternites 2 to 4 completely pruinose; sternites 6 to 8 pruinose; pile of abdomen yellow. Male genitalia. Surstylus elongated, about two and a half times as long as broad, apex acute, with rounded curve, directed ventrally; pile on dorsal surface of surstylus, increasing in length posteriorly; minute spines on ventral surface and apical three-fourth of lateral inner and outer surface; basal fourth of the ventral surface of the surstylus produced into a conspicuous lobe which extends ventrally, with minute pu bescence on ventral and lateral inner surface; cerci rounded, with invagination on posterior border; aedeagus as in Fig. 2 G.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
75E26B08EE8C7081E6991D837BC72AAA.taxon	distribution	Distribution. U. S. A.: California (Fig. 23). Known only from the San Bernardino Mountains.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
75E26B08EE8C7081E6991D837BC72AAA.taxon	biology_ecology	Biology. Collected visiting flowers of Ceanothus L. Recorded flying late May to late June. Etymology. The specific epithet is derived from the Latin interruptus (Brown 1956: 441) which means broken apart, between, off, or asunder. It references that the medial facial vitta is interrupted on the tubercle by a macula of pruinosity.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
08D5E6B2A50A890C4C5A4DD5955DA82A.taxon	diagnosis	Diagnosis. Sphecomyia metallica is not easily confused with any other congeneric as it is the only species which is long pilose and also completely pruinose on the scutum and scutellum.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
08D5E6B2A50A890C4C5A4DD5955DA82A.taxon	distribution	Distribution. U. S. A.: California, Oregon (Fig. 26). Mostly restricted to California, with a short extension into coastal Oregon.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
08D5E6B2A50A890C4C5A4DD5955DA82A.taxon	biology_ecology	Biology. Associated with lowland Arctostaphylos Adans. sp., more commonly known as manzanitas or bearberries. The plant ranges from small shrubs to trees of over 6 m. It has small, clustered, bell-shaped, pink or white flowers. Also collected on flowers of Ribes sanguineum Pursh and Ribes menziesii Pursh. Due to their unusual flight period of December through mid-April, more research is necessary to reveal the true distribution of the species.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
6E9A4C9E3857761FB8EB5FD217F0F819.taxon	diagnosis	Diagnosis. It can be confused with S. columbiana, S. cryptica sp. n., S. dyari, S. hoguei sp. n., and S. pattonii but can be distinguished by the following characters: tergite 1 with uninterrupted, pruinose band along posterior margin. Scutellum black pilose. Ventral calypter with long yellow pile. Sternites 2 to 4 mostly pruinose, with narrow anterior border and transverse subapical band shiny to dull black.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
6E9A4C9E3857761FB8EB5FD217F0F819.taxon	description	Description. Male. Body length: 11.1 - 14.6 mm. Wing length: 8.9 - 11.6 mm. Head. Face yellow pruinose with shiny, black, medial vitta extending from oral margin to base of antenna; frons broad, about as long as broad at antenna, two-thirds as broad at vertex as at antenna, bare, with yellow pruinosity along posterior half; vertex triangular, longer than broad, shiny, with ocellar triangle black pilose; postocular border yellow pruinose; postocular pile black; occipital pile yellow; male narrowly dichoptic; antenna black, black pilose, with length of segments roughly in a 3: 3: 2 ratio. Thorax. Sub-shiny black; postpronotum yellow pilose with occasional black pile; scutum, scutellum and postalar callus mostly black pilose with occasional yellow pile; proepimeron and posterior anepisternum yellow pilose; posterior katepisternum yellow pilose with broadly separated patches; anterior anepimeron yellow pilose; metasternum yellow pilose; postpronotum, anterior fourth of scutellum, broad posterior margin of anepisternum and dorso-posterior corner of katepisternum yellow pruinose; area between postpronota yellow pruinose, except shiny medially; anepimeron shiny; scutum without pruinose vittae; ventral calypter with long yellow pile. Legs. Foreleg black, except extreme apex of femur and anterior third of tibia reddish-yellow; fore tarsi slightly broadened; midleg reddish-yellow, except basal four-fifths of femur and last two tarsomeres black; hind leg reddish-yellow except last two tarsomeres black; legs yellow pilose, except fore tibia, fore tarsi, apex of fore femur and last two mid and hind tarsomeres black pilose; hind coxa yellow pruinose. Wing. Hyaline; microtrichia absent from following areas: cell bc; cell r 1 from base to about halfway to crossvein r-m; broad basal portion of cell br (before origin of M) and about basal two-fifths of narrower portion of this cell (caudad of spurious vein only); cell bm, except apex and narrow anterior and posterior margins of about apical fourth; broad anterior margin of cell cua; narrow, elongate, oval area proximal to vein A 1. Abdomen. Tergites and sternites shiny to sub-shiny, black with yellow pruinose markings as follows: tergite 1 pruinose along posterior margin; tergite 2 with broad, interrupted, narrowing, medial band which meets a narrow, uninterrupted posterior band in the posterolateral corners of tergite; tergite 3 with similar, but truncate, medial band, but more narrowly interrupted; pattern on tergite 4 same as tergite 3 except medial band very narrowly or incompletely interrupted; sternite 1 shiny; sternites 2 to 4 mostly pruinose, each with narrow anterior border and transverse subapical band shiny to dull black; sternites 6 to 8 pruinose; pile of abdomen yellow, except sometimes with scattered black pile present on postabdomen. Male genitalia. Surstylus not elongated, about as long as broad, curving upward dorsally; pile on dorsal surface of surstylus, increasing in length posteriorly; minute spines on ventral surface, with apical half of lateral inner surface also with spines; basal fourth of the ventral surface of the surstylus produced into a lobe directed anteriorly, with minute pubescence on ventral and lateral inner surface; cerci rounded, with no invagination on posterior border; aedeagus as in Fig. 2 I.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
6E9A4C9E3857761FB8EB5FD217F0F819.taxon	distribution	Distribution. U. S. A.: California (Fig. 25). A lowland species spread throughout the California Coast Ranges.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
6E9A4C9E3857761FB8EB5FD217F0F819.taxon	biology_ecology	Biology. Recorded flying late April through May. Etymology. The specific epithet is derived from the Latin orarius (Brown 1956: 576), meaning ' of the coast'.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
25AC5EFC7D41CED6B80BB529E2849B5F.taxon	diagnosis	Diagnosis. Species similar to S. columbiana, S. cryptica sp. n., S. dyari, S. hoguei sp. n. and S. oraria sp. n. but can be distinguished by the following characters: tergite 1 with uninterrupted, pruinose band along posterior margin; scutellum black pilose; ventral calypter with long black pile; sternites 2 to 4 mostly pruinose, with narrow anterior border and transverse subapical band shiny to dull black.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
25AC5EFC7D41CED6B80BB529E2849B5F.taxon	distribution	Distribution. U. S. A.: Washington, Oregon, Idaho, Montana. Canada: British Columbia (Fig. 25). Widespread throughout coastal and mountainous areas of Washington state except seemingly absent from the Columbia basin. Extends into coastal and forested parts of northeastern Oregon. Extends north into forested coastal and inland areas of British Columbia. Also known from forests of northern Idaho and western Montana.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
25AC5EFC7D41CED6B80BB529E2849B5F.taxon	biology_ecology	Biology. The authors collected this species visiting Rubus L. sp. on a forested slope near a river. Also collected visiting flowers of Heracleum lanatum Michx. Known hilltopper. Recorded flying late April through mid-August, with one outlier from mid-October.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
FDD679367A72632D6941D3613F540806.taxon	diagnosis	Diagnosis. Species similar to S. aino or S. tsherepanovi but can be distinguished by the following characters: cell c bare on basal third; ocellar triangle pale pilose; silver-yellow pruinose.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
FDD679367A72632D6941D3613F540806.taxon	description	Description. Female. Body length: 9.9 - 12.7 mm. Wing length: 7.7 - 7.9 mm. Head. Face silver-yellow pruinose with shiny, black, medial vitta extending from oral margin to base of antenna; frons black pilose posteriorly, silver-yellow pruinose on lateral margins; postocular border silver-yellow pruinose; postocular and occipital pile pale; antenna black, black pilose, with length of segments roughly in a 3: 3: 2 ratio. Thorax. Sub-shiny black; postpronotum, scutum, scutellum, postalar callus, proepimeron, posterior anepisternum pale pilose; posterior katepisternum pale pilose with broadly separated patches; anterior anepimeron pale pilose; metasternum pale pilose; postpronotum, anterior eighth of scutellum, broad posterior margin of anepisternum and dorso-posterior corner of katepisternum silver-yellow pruinose; area between postpronota weakly silver-yellow pruinose, except shiny medially; anepimeron shiny; scutum without pruinose vittae; ventral calypter with long yellow pile. Legs. Foreleg black except extreme apex of femur; midleg reddish-yellow, except last two tarsomeres black; hind leg reddish-yellow except last two tarsomeres black; all of fore tibia and tarsus black pilose, remainder of leg pale pilose. Wing. Hyaline; microtrichia absent from following areas: cell bc; basal third of cell c; basal fourth of cell sc; cell r 1 from base almost to crossvein r-m; broad basal portion of cell br (before origin of M) and about basal two-fifths of narrower portion of this cell (caudad of spurious vein only); cell bm except apex and narrow anterior and posterior margins of about apical fourth; broad anterior margin of cell cua; narrow, elongate, oval area proximal to vein A 1. Abdomen. Tergites and sternites shiny to sub-shiny, black with silver-yellow pruinosity as follows: tergite 1 pruinose posteriorly; tergite 2 with thin, interrupted, medial band which curves posteriorly to reach the posterolateral corners; tergite 3 with thin, interrupted, medial band which does not curve anteriorly; tergite 4 with similar but thinner band; sternite 1 shiny; sternites 2 to 4 pruinose, with indistinct spot of non-pruinosity posteromedially; pile of abdomen pale.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
FDD679367A72632D6941D3613F540806.taxon	distribution	Distribution. U. S. A.: California (Fig. 26). Known from three localities in the Sierra Nevada Range.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
FDD679367A72632D6941D3613F540806.taxon	biology_ecology	Biology. Recorded flying late April through mid-May. Etymology. The specific epithet is derived from the Greek pseudo (Brown 1956: 652) meaning false and sphex meaning wasp (Brown 1956: 652) and the latin mima (Brown 1956: 652) for mimic. The epithet referencing that it is one of the few non-wasp mimics of Sphecomyia.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
29875ED7CE75B0A560EA1C5060A41BFC.taxon	materials_examined	Type. Holotype male, pinned. Original label: " USA: California: Ventura Co. // Ventura Mountains, Pine Mountain // creek just S. of Reyes Cr. Cmpgrd. // 34.677 ° N, − 119.308 ° W, elev 1190 m // at Prunus virginiana var. demisa // 29 April- 1 May 2016 // J. N. Hogue, notes JNH # 526 " " LACM ENT 342251 ". [1 ♂, LACMENT 342251, LACM] Paratypes: U. S. A.: California, Arroyo Seco, 34.118483, − 118.191733, C. D. Michener, 27. i. 1935, CNC 46969 (1 ♂, CNC); Monterey Co., Highway. 1, roadside canyon 3.5 km N Lucia, 36.0589, − 121.5875, K. C. Holston, 15. v. 2001, KMM 0901 (1 ♀, CSCA); Riverside Co., Morongo Valley, 34.0451, − 116.5668, W. Laidlaw, 28. iv. 1972, JSS 45129 (1 ♀, CAS); Riverside Co., Riverside, 33.9533, − 117.3919, Salix lasiolepis, 26. ii. 1933, UCRC 428629; UCRC 428631 (1 ♂, 1 ♀, UCRC); San Bernardino Co., Big Morongo Canyon Preserve, 34.0507, − 116.5694, J. H. Skevington, K. Moran, 25. iv. 2016, CNC 517072 (1 ♀, CNC); Ventura Co., Ventura Mountains, Pine Mountain Creek, just South of Reyes Creek Campground, 34.677, − 119.308, 1190 m, Prunus virginiana var. demisa, A. M. Haberkern, 30. iv. 2016, LACMENT 342306 (1 ♂, USNM); J. N. Hogue, 29. iv- 1. v. 2016, LACMENT 342252 (1 ♂, LACM).	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
29875ED7CE75B0A560EA1C5060A41BFC.taxon	diagnosis	Diagnosis. Species similar to S. brevicornis and S. interrupta sp. n. but can be distinguished by the following characters: scutum with three pairs of pruinose vittae; cell c completely microtrichose; antenna possessing a 3: 3: 2 ratio of segments; frons pilose; anepimeron pruinose; anterior three-fourth of scutellum pruinose; medial facial vitta not interrupted by a macula of pruinosity on tubercle.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
29875ED7CE75B0A560EA1C5060A41BFC.taxon	description	Description. Male. Body length: 12.3 - 12.6 mm. Wing length: 8.9 - 9.6 mm. Head. Face yellow pruinose with shiny, black, medial vitta extending from oral margin to base of antenna; frons broad, about as long as broad at antenna, two-thirds as broad at vertex as at antenna, sparsely yellow pilose, with yellow pruinosity along posterior fourth; vertex triangular, longer than broad, shiny, with ocellar triangle black pilose; postocular border yellow pruinose; postocular pile black; occipital pile yellow; male narrowly dichoptic; antenna black, black pilose, length of segments roughly in a 3: 3: 2 ratio. Thorax. Matte black; postpronotum yellow pilose; scutum yellow pilose, except with black pile posteromedially; scutellum, postalar callus, proepimeron, posterior anepisternum yellow pilose; posterior katepisternum yellow pilose with broadly separated patches; anterior anepimeron yellow pilose; metasternum yellow pilose; postpronotum, scutellum, broad posterior margin of anepisternum and dorso-posterior corner of katepisternum yellow pruinose; anepimeron yellow pruinose anteriorly; scutum with three pairs of pruinose vittae, anterior pair long running from anterior edge of scutum to transverse suture, posterior pair shorter and terminating before posterior edge and a small medial pair along the lateral margins of the scutum; ventral calypter with long yellow pile. Legs. Fore femur, except for extreme apex, along with last two tarsi black; rest of leg yellow; midleg with femur except extreme apex, and last two tarsomeres, black; rest of leg reddish-yellow; hind leg reddish-yellow except last two tarsomeres black; legs yellow pilose, except black pilose on last three tarsomeres; Wing. Hyaline; microtrichia absent from following areas: broad anterior margin of cell cua. Abdomen. Tergites and sternites shiny to sub-shiny, black with yellow pruinose markings as follows: tergite 1 pruinose along posterior margin; tergite 2 with broad, interrupted, truncate medial band which meets a broad, uninterrupted posterior band in the posterolateral corners of tergite; tergite 3 with broad medial band, sometimes very narrowly interrupted, that joins with broad posterior band in two places creating a medial diamond-shaped spot of no pruinosity; pattern on tergite 4 same as tergite 3; sternites 1 to 4 completely pruinose; sternites 6 to 8 pruinose; pile of abdomen yellow. Male genitalia. Surstylus elongated, about 21 / 2 times as long as broad, apex acute, directed ventrally, with abrupt curve; pile on dorsal surface of surstylus, increasing in length posteriorly; minute spines on ventral surface and apical three-fourth of lateral inner and outer surface; basal fourth of the ventral surface of the surstylus produced into a lobe directed ventrally, with minute pubescence on ventral and lateral inner surface; cerci rounded, with invagination on posterior border; aedeagus as in Fig. 2 K.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
29875ED7CE75B0A560EA1C5060A41BFC.taxon	distribution	Distribution. U. S. A.: California (Fig. 23). Lowland chaparral in southern California.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
29875ED7CE75B0A560EA1C5060A41BFC.taxon	biology_ecology	Biology. Collected visiting flowers of Salix lasiolepis Benth. and Prunus virginiana var. demisa (Nutt. ex Torr. and A. Gray) Torr. Recorded flying late January through mid-May. Etymology. The specific epithet is derived from the Latin sex (Brown 1956: 700), which means six, and the Latin fasciata (Brown 1956: 134), which means band or stripe. It references the three pairs of vittae on the scutum, a character unique within the genus Sphecomyia.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
2EC2EAABEBF329B7C1D32F8931ED8552.taxon	diagnosis	Diagnosis. Species similar to S. aino or S. pseudosphecomima but can be distinguished by the following characters: cell c bare on basal two-thirds; ocellar triangle black pilose; silver-white pruinose; basiphallus as in Fig. 2 L.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
2EC2EAABEBF329B7C1D32F8931ED8552.taxon	distribution	Distribution. Japan: Hokkaido, Honshu. Russia: Kuril Islands (Fig. 24).	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
2EC2EAABEBF329B7C1D32F8931ED8552.taxon	biology_ecology	Biology. Collected visiting flowers of Philadelphus satsumi Siebold ex Lindl. and J. Paxton. Recorded flying early June through mid-July.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
F5A7BA339C1C85AB56A56BE5EF6CBDA9.taxon	diagnosis	Diagnosis. It can be confused with S. vittata but can be distinguished by the following characters: anepimeron not pruinose; anterior half of scutellum pruinose; sternite 2 completely black or with faint, interrupted, pruinose band anteriorly.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
F5A7BA339C1C85AB56A56BE5EF6CBDA9.taxon	biology_ecology	Biology. Often found in June or July along rivers and streams in Betula L. / Pinus L. forest. Copulation has been observed on the trunk of Populus tremula L., Crataegus maximowiczii C. K. Schneid., Hesperis matronalis L., Pimpinella saxifraga L., Rubus idaeus L., Sorbus aucuparia L., and Spiraea salicifolia L. Immature stages are not described but are probably associated with sap-runs or lesions in the trunk of Populus tremula (Speight 2014).	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
F5A7BA339C1C85AB56A56BE5EF6CBDA9.taxon	distribution	Distribution. Southern Norway to northern Sweden, Finland and Russian Karelia, the Baltic States, Poland, and throughout Siberia, reaching the Pacific coast (Fig. 24).	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
EFDA3DA69DBCFB2252A17538C1168D20.taxon	diagnosis	Diagnosis. It can be confused with S. vespiformis but can be distinguished by the following characters: anepimeron pruinose; anterior three-fourths of scutellum pruinose; sternite 2 with anterior corners and lateral margins pruinose.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
EFDA3DA69DBCFB2252A17538C1168D20.taxon	distribution	Distribution. Manitoba east to New Brunswick south to Florida west to New Mexico and Utah. Widespread east of the Great Plains (Fig. 23).	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
EFDA3DA69DBCFB2252A17538C1168D20.taxon	biology_ecology	Biology. Collected on flowers of Acer spicatum Lam., Alliaria petiolata (M. Beib.) Cavara and Grande, Corema (D. Don) sp., Cornus florida L., Crataegus marshallii Eggl., Sassafras albidum (Nutt.) Nees, Prunus gracilis Engelm. and A. Gray, Prunus serotina Ehrh., Prunus virginiana L., Aronia melanocarpa (Michx.) Elliott, Physocarpus opulifolius (L.) Maxim., Symplocos Jacq. sp., Corus sp., Viburnum cassinoides L., Viburnum lentago L., Viburnum prunifolium L., and Viburnum rafinesquianum Schult. Also collected at Acer L. sap runs. Usually collected in deciduous woods, often near a stream or river, but has also been taken in sphagnum bog. One female has been collected in leaves at base of a hardwood tree. Known hilltopper. Authors have personally observed specimens flying in a lazy-S-type pattern similar to that of wasps. Recorded flying early March through late July.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
A59DC7931F90B6AFD30A29779FF2F985.taxon	diagnosis	Diagnosis. It can be confused with S. columbiana, S. cryptica sp. n., S. dyari, S. hoguei sp. n., S. oraria sp. n., and S. pattonii but is easily distinguished by a scutellum with the anterior half pruinose.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
A59DC7931F90B6AFD30A29779FF2F985.taxon	description	Description. Male. Body length: 13.6 - 14.6 mm. Wing length: 9.7 - 11.0 mm. Head. Face yellow pruinose with shiny, black, medial vitta extending from oral margin to base of antenna; frons broad, about as long as broad at antenna, two-thirds as broad at vertex as at antenna, bare, with yellow pruinosity along posterior three-fourths; vertex triangular, longer than broad, shiny, with ocellar triangle yellow pilose; postocular border yellow pruinose; postocular and occipital pile yellow; male narrowly dichoptic; antenna black, yellow pilose, length of segments roughly in a 3: 3: 2 ratio. Thorax. Sub-shiny black; postpronotum, scutum, scutellum, postalar callus, proepimeron, posterior anepisternum yellow pilose; posterior katepisternum yellow pilose with broadly separated patches; anterior anepimeron yellow pilose; metasternum yellow pilose; postpronotum, anterior half of scutellum, broad posterior margin of anepisternum and dorso-posterior corner of katepisternum yellow pruinose; area between postpronota yellow pruinose, except shiny medially; anepimeron shiny; scutum without pruinose vittae; ventral calypter with long yellow pile. Legs. Foreleg black, except extreme apex of femur and anterior third of tibia reddish-yellow; fore tarsi slightly broadened; midleg reddish-yellow, except basal four-fifths of femur and last two tarsomeres black; hind leg reddish-yellow, except last two tarsomeres black; legs yellow pilose, except fore tibia, fore tarsi, apex of fore femur black pilose; hind coxa yellow pruinose. Wing. Hyaline; microtrichia absent from following areas: cell bc; broad basal portion of cell br (before origin of M) and about basal two-fifths of narrower portion of this cell (caudad of spurious vein only); cell bm except apex and narrow anterior and posterior margins of about apical fourth; broad anterior margin of cell cua. Abdomen. Tergites and sternites shiny to sub-shiny black; with yellow pruinose markings as follows: tergite 1 pruinose along posterior margin; tergite 2 with broad, interrupted, truncate medial band which meets a narrow, uninterrupted posterior band in the posterolateral corners of tergite; tergite 3 with similar medial band, but more narrowly interrupted; pattern on tergite 4 same as tergite 3 except medial band very narrowly or incompletely interrupted; sternite 1 shiny; sternites 2 to 4 almost completely pruinose, with a triangular region of non-pruinosity posteromedially; sternites 6 to 8 pruinose; pile of abdomen and postabdomen yellow. Male genitalia. Surstylus not elongated, about as long as broad, curving downward ventrally; pile on dorsal and apical fourth of lateral outer surface of surstylus; minute spines on ventral surface, with apical half of lateral inner surface also with spines; basal fourth of the ventral surface of the surstylus produced into a lobe directed anteriorly, with minute pubescence on ventral and lateral inner surface; cerci rounded, with no invagination on posterior border; aedeagus as in Fig. 2 O.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
A59DC7931F90B6AFD30A29779FF2F985.taxon	distribution	Distribution. Arizona (Fig. 26). Known from the Mogollon Rim and Madrean Sky Islands.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
A59DC7931F90B6AFD30A29779FF2F985.taxon	biology_ecology	Biology. Recorded flying late June through early July. Etymology. The specific epithet honors K. E. Weisman who published a series of four papers on Sphecomyia that summarized most of what was previously known about the genus.	en	M. Moran, Kevin, H. Skevington, Jeffrey (2019): Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79, DOI: http://dx.doi.org/10.3897/zookeys.836.30326, URL: http://dx.doi.org/10.3897/zookeys.836.30326
