Dicranota ( Dicranota ) coreana Alexander, 1940

Podenas, Sigitas, Yum, Jin Whoa, Ahn, Neung-Ho, Kim, Soen Yi, Kim, Jisoo & Podeniene, Virginija, 2025, Dicranota Zetterstedt, 1838 crane flies (Diptera, Pediciidae) of Korea, ZooKeys 1253, pp. 1-72 : 1-72

publication ID

https://doi.org/10.3897/zookeys.1253.146576

publication LSID

lsid:zoobank.org:pub:DFCA6761-035B-49C7-9C83-8ADCBB7EFCB5

DOI

https://doi.org/10.5281/zenodo.17185472

persistent identifier

https://treatment.plazi.org/id/0B140524-D2EA-514C-A2C7-4AD27D77DB1C

treatment provided by

ZooKeys by Pensoft

scientific name

Dicranota ( Dicranota ) coreana Alexander, 1940
status

stat. nov.

Dicranota ( Dicranota) coreana Alexander, 1940 stat. nov.

Figs 1–2 View Figures 1, 2 , 3–6 View Figures 3–6 , 77 View Figures 77–93

Dicranota ( Dicranota) yezoensis coreana Alexander, 1940: 45–46. View in CoL

Type material examined.

North Korea • Holotype ♀ (pinned, antenna and wing slide mounted); Seren Mts. ; alt. 853 m; 15 June 1938; A. M. Yankovsky leg.; USNM .

Other examined material

(Fig. 77 View Figures 77–93 ). North Korea • 2 ♀ (pinned); Chonsani ; alt. 1219 m; 29 April 1940; A. M. Yankovsky leg.; USNM 2 ♂ (pinned, genitalia in microvials with glycerol on same pins); Chonsani ; alt. 1067 m; 27 June 1940; A. M. Yankovsky leg.; USNM 1 ♂, 1 ♀ (pinned); Chonsani ; alt. 1372 m; 29 June 1940; A. M. Yankovsky leg.; USNM 1 ♂ (pinned); Chonsani ; alt. 1219 m; 1 July 1940; A. M. Yankovsky leg.; USNM 1 ♀ (pinned); Chonsani ; alt. 1219 m; 4 July 1940; A. M. Yankovsky leg.; USNM 1 ♂, 1 ♀ (pinned, ♂ genitalia in microvial with glycerol on same pin); Pontani Paiktusan ; alt. 1920 m; 28 July 1940; A. M. Yankovsky leg.; USNM 1 ♀ (pinned); Pontani Paiktusan ; alt. 1524–1829 m; 2 August 1940; A. M. Yankovsky leg.; USNM 1 ♀ (pinned); Chonsani ; alt. 1219 m; 4 August 1940; A. M. Yankovsky leg.; USNM 1 ♀ (pinned); Pontani Paiktusan ; alt. 1920 m; 8 August 1940; A. M. Yankovsky leg.; USNM 1 ♀ (pinned); Pontani Paiktusan ; alt. 1768–1942 m; 9 August 1940; A. M. Yankovsky leg.; USNM 1 ♂ (pinned, genitalia in microvial with glycerol on same pin); Pontani Paiktusan ; alt. 1890 m; 10 August 1940; A. M. Yankovsky leg.; USNM 1 ♂ (pinned, genitalia in microvial with glycerol on same pin); Pontani Paiktusan ; alt. 1920 m; 20 August 1940; A. M. Yankovsky leg.; USNM 1 ♀ (pinned); Pontani Paiktusan ; alt. 1829–1942 m; 25 August 1940; A. M. Yankovsky leg.; USNM 1 ♀ (pinned); Pontani Paiktusan ; alt. 1829–1942 m; 27 August 1940; A. M. Yankovsky leg.; USNM .

Redescription.

General body colouration dark brown, male sparsely dusted with grey, female more densely covered with bluish grey pruinosity. Body length of female 7.0– 8.7 mm. Wing length of male 7.4–8.2 mm, of female 8.0– 9.4 mm.

Head. Brown, light grey along eye margin, darker brown dorso-medially, covered with short yellowish setae dorsally. Eyes widely separated in both sexes, distance between them at base of antennae exceeds length of both basal antennomeres taken together. Antenna 1.1–1.3 mm long in male, reaching to approx. middle of presutural scutum if bent backwards, 1.3 mm in female. Whole antenna uniformly dark brown, scape elongate, nearly twice as long as wide, pedicel subglobular. Flagellum 11 - segmented. Basal flagellomere elongate, subcylindrical, nearly twice as long as second. Remaining flagellomeres oval, decreasing in length towards apex of antenna. Flagellum covered with light grey pubescence. Verticils dark brown, not exceeding length of respective segment. Rostrum brown, palpus dark brown, labellum rusty brown.

Thorax. Dark brown, covered with grey pruinosity. Pronotum covered with erect straight pale yellow setae. Presutural scutum densely covered with greyish brown pruinosity, with four distinct dark brown stripes. Median stripes not reaching posterior margin of sclerite, narrowly separated along middle by very narrow light vitta. Lateral stripe short. Stripes without darker margins. Tubercular pits missing, pseudosutural fovea indistinct. Scutal lobe greyish brown with longitudinal dark brown stripe along middle. Area between scutal lobes brownish grey. Scutellum bluish grey. Mediotergite brownish grey, paler grey anteriorly, darker posteriorly. Pleuron uniformly brownish grey, semi-polished brown where pruinosity has been denuded. Prothoracic spiracle surrounded by brownish yellow membrane. Wing (Figs 1 View Figures 1, 2 , 2 View Figures 1, 2 ) widest before tip of vein CuP, translucent, strongly iridescent with greyish tinge. Stigma brown, elongate. Dark spot at base of R 5 and cross-vein r-m indistinct, no darkening at base of Rs. Veins brown, pale at wing base. Venation: Sc long, tip nearly reaching middle of stigma, sc-r far before base of Rs, beyond level of A 1 tip. Rs short, usually angulated, often with short spur. Free end of R 1 very short, distinctly shorter than R 2. Vein R 2 transverse, at distal margin of stigma, supernumerary cross-vein in cell r 1 at frontal margin of stigma. Distal parts of R 3, R 4, and R 5 nearly parallel to each other. Cell r 3 with short stem. Cross-vein r-m distinct, discal cell open by atrophy of vein m-m. Cell m 1 distinct, rarely small, present in all studied specimens, length slightly varies individually. Cross-vein m-cu slightly beyond branching point of M, CuP straight, anal vein nearly straight. Anal angle widely rounded. Length of male halter 1.0– 1.1 mm, of female 1.0 mm. Halter pale brown, knob slightly darker than stem. Coxae yellow, dusted with grey, covered with sparse yellowish setae. Fore and middle coxae darker brown at base, more darkened frontally. Trochanters obscure yellow. Femora brownish, paler at base, darker towards apex. Tibiae brown, slightly darker towards distal end, tarsomeres dark brown. Male femur I: 4.8 mm long, II: 5.0– 5.6 mm, III: 5.2–5.4 mm, tibia I: 4.9 mm, II: 4.5–5.0 mm, III: 4.8–5.4 mm, tarsus I: 6.5 mm, II: 5.5–6.0 mm, III: 5.6 mm. Female femur I: 4.2–4.5 mm long, II: 4.4 mm, III: 5.0 mm, tibia I: 4.2–4.3 mm, II: 4.2 mm, III: 4.8 mm, tarsus I: 4.9–5.3 mm, II: 4.7 mm, III: 5.3 mm. Claw simple, without spines, rusty brown.

Abdomen. Male abdomen dark brown, sparsely dusted with grey, posterior margins of segments narrowly pale or greyish, lateral margins of tergites indistinctly rusty brown towards distal end of sclerite. Female abdomen with denser cover of grey or bluish grey pruinosity, posterior margins of sternites very narrowly pale.

Male terminalia (Figs 3–5 View Figures 3–6 ) rusty brown to dark brown. Posterior margin of epandrium concave, postero-lateral angle rounded. Gonocoxite short and wide with elongate slightly arched round-apexed setose postero-dorsal lobe better discernible in lateral view (Fig. 4 View Figures 3–6 ). Interbase long and narrow, rod-shaped. Outer gonostylus fleshy and setose, spindle-shaped. Inner gonostylus elongate, pale, mesal margin with small spines and darkened subbasal bump. Aedeagus (Fig. 5 View Figures 3–6 ) with elongate distal part and with two pairs of lateral apodemes, dorsal apodemes wide, wing-shaped. Posterior segments of female abdomen concolourous with the rest of abdomen, base of ovipositor darker brown.

Female terminalia (Fig. 6 View Figures 3–6 ). Cercus and hypogynial valve brownish yellow, cercus just slightly arched, blunt-apexed. Hypogynial valve straight, blackish at base, apex pale and acute. Spermatheca small, rounded.

Elevation range.

From 850 m to ca 1900 m.

Period of activity.

Adults fly from late April through to end of August.

Habitat.

Unknown.

General distribution.

Species endemic to northern Korea.

Remarks.

Male was unknown, it is described for the first time herein. The taxon should be treated as a separate species because D. yezoensis Alexander, 1924 also occurs in northern Korea and they have differences in the male genitalia, like the shape of the gonocoxite and details of the aedeagus, especially the shape of the dorsal apodeme of the aedeagus. The male antenna of D. coreana is shorter than that of D. yezoensis .

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Pediciidae

Genus

Dicranota

SubGenus

Dicranota

Loc

Dicranota ( Dicranota ) coreana Alexander, 1940

Podenas, Sigitas, Yum, Jin Whoa, Ahn, Neung-Ho, Kim, Soen Yi, Kim, Jisoo & Podeniene, Virginija 2025
2025
Loc

Dicranota ( Dicranota ) yezoensis coreana

Alexander CP 1940: 46
1940