identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03E787C1FFE8FF9AFF6BFCBAFA52F81B.text	03E787C1FFE8FF9AFF6BFCBAFA52F81B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calosargus (Calosargus) Mostovski 1997	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Subgenus  Calosargus (Calosargus) Mostovski, 1997</p>
            <p> Type species.  Calosargus (Calosargus) tatianae Mostovski, 1997</p>
            <p>Stratigraphic and geographic range. The Middle/Upper Jurassic; Kazakhstan, China.</p>
            <p> Diagnosis. Subgenus  Calosargus Mostovski, 1997 differs from subgenus Pterosargus Mostovski, 1997 in veins M1 and M2 distinctly separated at base, vein M3 absent, and cell br nearly as wide as cell bm. </p>
            <p> Key to species of  Calosargus</p>
            <p> 1. Veins M1 and M2 converged at base; vein M3 present.....................................  C. (P.) thanasymus Mostovski</p>
            <p>- Veins M1 and M2 distinctly separated at base; vein M3 absent......................................................................2</p>
            <p>2. Vein Rs1 long, about twice as long as vein Rs2.............................................................................................3</p>
            <p>- Vein Rs1 short, nearly as long as vein Rs2………………………….............................................................6</p>
            <p> 3. Vein R2+3 long, ending at vein R1 near wing margin…………… ...............................  C. (C.) bellus sp. nov.</p>
            <p>- Vein R2+3 short, ending at vein R1 far from wing margin…………..………................................................4</p>
            <p> 4. Cell d large; mouth of cell m1 about twice as wide as that of cell m2 ......................  C. (C.) niger Mostovski </p>
            <p>- Cell d smaller than above; mouth of cell m1 about as wide as that of cell m2…..… ..........................…..…5</p>
            <p> 5. Vein R5 far longer than vein R4; base of cell d obtuse..…… ...........................…  C. (C.) tatianae Mostovski</p>
            <p> - Vein R5 slightly longer than vein R4; base of cell d acute……........................... …  C. (C.) antiquus sp. nov.</p>
            <p> 6. A spurious crossvein between veins R1 and R2+3 present; vein Rs1 slightly longer than vein Rs2 .................. .......................................................................................................................................  C. (C.) hani  sp. nov.</p>
            <p>- Spurious crossvein between veins R1 and R2+3 absent; vein Rs1 not longer than vein Rs2............................7</p>
            <p> 7. Mouth of cell r1 narrow, about 1/4 as wide as that of cell r4 .........................  C. (C.) daohugouensis sp. nov.</p>
            <p>- Mouth of cell r1 wide, about 1/2 as wide as that of cell r4............................................................................8</p>
            <p> 8. Cell d slender; base of cell m2 about 3.5 times as wide as that of cell m1 ...................................................... ........................ ……………………………………………………….....….  C. (C.) tenuicellulatus sp. nov.</p>
            <p> - Cell d wide; base of cell m2 about 1.5 – 2 times as wide as that of cell m1 ..............  C. (C.) validus sp. nov.</p>
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	https://treatment.plazi.org/id/03E787C1FFE8FF9AFF6BFCBAFA52F81B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Kuiyan;Yang, Ding;Shih, Dong Ren Chungkun	Zhang, Kuiyan, Yang, Ding, Shih, Dong Ren Chungkun (2007): The oldest Calosargus Mostovski, 1997 from the Middle Jurassic of China (Diptera: Brachycera: Archisargidae). Zootaxa 1645: 1-17, DOI: 10.5281/zenodo.179727
03E787C1FFE8FF9AFF6BFE23FA8EFD1F.text	03E787C1FFE8FF9AFF6BFE23FA8EFD1F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calosargus Mostovski 1997	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Genus  Calosargus Mostovski, 1997</p>
            <p> Type species.  Calosargus (Calosargus) tatianae Mostovski, 1997 . </p>
            <p>Diagnosis. Head round, antennal flagellum bristle-like (if preserved). Wing slender; vein Sc ending far beyond middle of wing; vein R1 long; vein R2+3 ending at vein R1 before wing margin, vein R5 ending at (or beyond) wing apex; vein CuA1 arising from cell d; vein CuP present, vein CuA2 short; cell sc and cell r4 wide open, cell r4 short, cell d large, and cell cup narrowly open (Mostovski 1997, Nagatomi &amp; Yang 1998).</p>
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	https://treatment.plazi.org/id/03E787C1FFE8FF9AFF6BFE23FA8EFD1F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Kuiyan;Yang, Ding;Shih, Dong Ren Chungkun	Zhang, Kuiyan, Yang, Ding, Shih, Dong Ren Chungkun (2007): The oldest Calosargus Mostovski, 1997 from the Middle Jurassic of China (Diptera: Brachycera: Archisargidae). Zootaxa 1645: 1-17, DOI: 10.5281/zenodo.179727
03E787C1FFEBFF9FFF6BFF36FC1AF9EB.text	03E787C1FFEBFF9FFF6BFF36FC1AF9EB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calosargus (Calosargus) bellus Zhang, Yang & Ren	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Calosargus (Calosargus) bellus Zhang, Yang &amp; Ren ,  sp. nov.</p>
            <p>(Figs. 1–6)</p>
            <p>Diagnosis. Vei n R s 1 about twice as long as vein Rs2; vein R2+3 arising slightly distal of base of cell d; vein R2+3 ending at vein R1 near wing margin; crossvein r-m located at about basal 2/5 of cell d.</p>
            <p> Etymology. The specific name refers to the Latins  bellus (pretty). </p>
            <p>Holotype. CNU-DB-NN2007004, an almost complete male with both wings in dorsal view.</p>
            <p>Paratype. Part and counterpart CNU-DB-NN2007005, CNU-DB-NN2007006, an almost complete adult body with both wings in lateral view.</p>
            <p>Type locality and horizon. Daohugou Village, Shantou Township, Ningcheng County, Inner Mongolia, China; Jiulongshan Formation, the Middle Jurassic (Aalenian-Bajocian).</p>
            <p>Description. Body length 17.3 – 17.6 mm; wing length 9.4 – 10.3 mm, wing width 2.8 – 2.9 mm.</p>
            <p>Head round, slightly narrower than thorax. Eyes large, bare, dichoptic; ommatidia visible clearly.</p>
            <p>Thorax black. Legs pubescent. Fore and mid tibiae slender; hind tibia with 1 spur, femur long, robust; first tarsomere distinctly longer than following tarsomeres. Wing hyaline: Crossvein h sometimes slant. Vein C ending at wing tip; veins C, Sc and R1 markedly thick; vein Sc long, extending far beyond middle of wing. Ve in R 1 long and robust; vein Rs1 arising from middle of wing, about twice as long as vein Rs2; vein R2+3 arising slightly distal of base of cell d; vein R2+3 ending at vein R1 near wing margin; veins R4 and R5 short; vein R5 ending far beyond apex of wing, relative lengths of veins Rs3, R4 and R5 about 6: 3: 4. Crossvein r-m located at basal 2/5 of cell d. Vein M3 absent, vein CuA1 arising from cell d. Vein CuP present. Cell sc wide open, mouth of cell sc about 3 times as wide as that of cell r4, mouth of cell r1 narrow, mouth of cell r4 about twice as wide as that of cell r1. Cell br nearly as large as cell bm. Cell d short and wide; base of cell m1 about 1/3 – 1/5 as wide as that of cell m2; mouth of cell m1 nearly as wide as that of cell m2. Mouth of cua1 wide open, about 7 times as wide as that of cell cup. Halter well-developed.</p>
            <p>Abdomen slender, narrowing toward tip, covered with setulae. Eight segments visible. Segment I evidently short. Segments I and II with wide black stripe at middle. Segments II to VII with distinct stria at side.</p>
            <p> Remarks.  C. (C.) bellus sp. nov. looks like  C. (C.) tatianae Mostovski, 1997 very much in the following aspects: vein Rs1 long, about twice as long as vein Rs2; vein R2+3 arising slightly distal of base of cell d; cell d wide, crossvein r-m located at basal 2/5 of cell d; mouth of cell m1 slightly wider than that of cell m2. However, it can be easily separated from the latter by vein R2+3 long, ending at vein R1 near wing margin, and base of cell m1 about 1/3 – 1/5 as wide as that of cell m2. In  tatianae , vein R2+3 is short, ending at vein R1 far before wing margin; the base of cell m1 is about 1/2 as wide as that of cell m2. </p>
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	https://treatment.plazi.org/id/03E787C1FFEBFF9FFF6BFF36FC1AF9EB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Kuiyan;Yang, Ding;Shih, Dong Ren Chungkun	Zhang, Kuiyan, Yang, Ding, Shih, Dong Ren Chungkun (2007): The oldest Calosargus Mostovski, 1997 from the Middle Jurassic of China (Diptera: Brachycera: Archisargidae). Zootaxa 1645: 1-17, DOI: 10.5281/zenodo.179727
03E787C1FFECFF93FF6BF912FB81FC8F.text	03E787C1FFECFF93FF6BF912FB81FC8F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calosargus (Calosargus) antiquus Zhang, Yang & Ren	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Calosargus (Calosargus) antiquus Zhang, Yang &amp; Ren ,  sp. nov.</p>
            <p>(Figs. 9–10)</p>
            <p>Diagnosis. Flagellum bristle-like; vein Rs1 about twice as long as vein Rs2; vein R2+3 arising slightly distal of base of cell d; vein R2+3 ending at vein R1 far before wing margin; crossvein r-m nearly located at middle of cell d.</p>
            <p> Etymology. The specific name refers to the Latin:  antiquus (ancient). </p>
            <p>Holotype. CNU-DB-NN2007007, female, an almost complete adult body with both wings in dorsal view.</p>
            <p>Type locality and horizon. Daohugou Village, Shantou Township, Ningcheng County, Inner Mongolia, China; Jiulongshan Formation, the Middle Jurassic (Aalenian-Bajocian).</p>
            <p>Description. Body length 16 mm; wing length 7.2 mm, wing width 2.3 mm. Head subround, slightly narrower than thorax. Eyes large, bare; ommatidia visible clearly. Flagellum bristle-like.</p>
            <p>Hind femur robust and distinctly swollen; tibia slender. Wing hyaline: Vein C ending at wing tip; veins C, Sc and R1 markedly thick; vein Sc long, extending beyond middle of wing. Vein R1 long and robust; vein Rs1 arising from middle of wing, about twice as long as vein Rs2; vein R2+3 arising slightly distal of base of cell d; vein R2+3 ending at vein R1 far before wing margin; veins R4 and R5 short; vein R5 ending far beyond apex of wing, relative lengths of veins Rs3, R4 and R5 about 6: 3: 4. Crossvein r-m nearly located at middle of cell d. Ve in M 3 absent, vein CuA1 arising from cell d. Vein CuP present. Cell sc wide open, mouth of cell sc about 3 times as wide as that of cell r4, mouth of cell r1 narrow, mouth of cell r4 about twice as wide as that of cell r1. Cell br nearly as large as cell bm. Cell d wide; base of cell m1 about 1/2 as wide as that of cell m2; mouth of cell m1 nearly as wide as that of cell m2. Mouth of cua1 wide open, about 5 times as wide as that of cell cup.</p>
            <p>Abdomen cylindrical, covered with setulae. Nine segments visible; segment I evidently short. Segments II to VII with distinct stria at side. Segments III to VI with wide black stripe at each end. Ovipositor tapering.</p>
            <p> Remarks.  C. (C.) antiquus sp. nov. could be related to  C. (C.) tatianae Mostovski, 1997 in the following aspects: vein Rs1 long, about twice as long as vein Rs2; vein R2+3 arising slightly distal of base of cell d; vein R2+3 ending at vein R1 far before wing margin; base of cell m1 about 1/2 as wide as that of cell m2. However, it can be easily separated from the latter by the shorter apical part of vein R1 (from ending of vein R2+3 to wing margin), shorter veins R4 and R5, wider crossvein r-m, and sharper base of cell d. </p>
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	https://treatment.plazi.org/id/03E787C1FFECFF93FF6BF912FB81FC8F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Kuiyan;Yang, Ding;Shih, Dong Ren Chungkun	Zhang, Kuiyan, Yang, Ding, Shih, Dong Ren Chungkun (2007): The oldest Calosargus Mostovski, 1997 from the Middle Jurassic of China (Diptera: Brachycera: Archisargidae). Zootaxa 1645: 1-17, DOI: 10.5281/zenodo.179727
03E787C1FFE1FF92FF6BFC2AFBBDF8A1.text	03E787C1FFE1FF92FF6BFC2AFBBDF8A1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calosargus (Calosargus) daohugouensis Zhang, Yang & Ren	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Calosargus (Calosargus) daohugouensis Zhang, Yang &amp; Ren ,  sp. nov.</p>
            <p>(Figs. 11–12)</p>
            <p>Diagnosis. Vei n R s 1 short, nearly as long as vein Rs2; vein R2+3 arising slightly proximal of base of cell d; vein R2+3 ending at vein R1 far before wing margin; crossvein r-m located at basal 1/3 of cell d; mouth of cell r1 narrow, about 1/4 as wide as that of cell r4; mouth of cell m1 narrower than that of cell m2.</p>
            <p>Etymology. The specific name refers to the type locality: Daohugou village, Inner Mongolia, China.</p>
            <p>Holotype. CNU-DB-NN2007008, an almost complete adult of unknown sex with wing in lateral view.</p>
            <p>Type locality and horizon. Daohugou Village, Shantou Township, Ningcheng County, Inner Mongolia, China; Jiulongshan Formation, Middle Jurassic (Aalenian-Bajocian).</p>
            <p>Description. Body length 8.0 mm; wing length 7.8 mm, wing width 2.5 mm.</p>
            <p>Head round in lateral view, slightly narrower than thorax. Eyes large, bare; ommatidia visible clearly.</p>
            <p>Thorax black. Middle and hind femora long, slightly swollen; hind tibia slender. Wing elongate, hyaline. Vein C ending at wing tip; veins C and R1 markedly thick; vein Sc long, extending far beyond middle of wing. Ve in R 1 long and robust; vein Rs1 short, nearly as long as vein Rs2; vein R2+3 arising slightly proximal of base of cell d; vein R2+3 ending at vein R1 far before wing margin; vein R4 short, convergent to vein R1; vein R5 ending far beyond apex of wing, relative lengths of vein R5 and vein Rs3 about 3: 5. Crossvein r-m located at basal 1/3 of cell d. Vein M3 absent, vein CuA1 arising from cell d. Cell sc wide open, mouth of cell sc about 3 times as wide as that of cell r4, mouth of cell r1 narrow, about 1/4 as wide as that of cell r4. Cell d wide, mouth of cell m1 narrower than that of cell m2.</p>
            <p>Abdomen slender, cylindrical. Three segments visible. Segment I evidently short.</p>
            <p> Remarks.  C. (C.) daohugouensis sp. nov. could be related to  C. (C.) antiquus sp. nov. in the following aspects: vein R2+3 ending at vein R1 far before wing margin; veins R4 and R5 short; base of cell d sharp. However, we can easily separate it from  antiquus by vein Rs1 short, nearly as long as vein Rs2; vein R2+3 arising slightly proximal of base of cell d; crossvein r-m located at basal 1/3 of cell d; veins M distinctly long; mouth of cell r1 about 1/4 as wide as that of cell r4; mouth of cell m1 narrower than that of cell m2. In  antiquus , vein Rs1 is long, about twice as long as vein Rs2; vein R2+3 is arising slightly distal of the base of cell d; crossvein rm is nearly located at middle of cell d; the branches of vein M are distinctly short; the mouth of cell r1 is about 1/2 as wide as that of cell r4; the mouth of cell m1 is nearly as wide as that of cell m2. </p>
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	https://treatment.plazi.org/id/03E787C1FFE1FF92FF6BFC2AFBBDF8A1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Kuiyan;Yang, Ding;Shih, Dong Ren Chungkun	Zhang, Kuiyan, Yang, Ding, Shih, Dong Ren Chungkun (2007): The oldest Calosargus Mostovski, 1997 from the Middle Jurassic of China (Diptera: Brachycera: Archisargidae). Zootaxa 1645: 1-17, DOI: 10.5281/zenodo.179727
03E787C1FFE0FF90FF6BF8FBFDFBF8D1.text	03E787C1FFE0FF90FF6BF8FBFDFBF8D1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calosargus (Calosargus) tenuicellulatus Zhang, Yang & Ren	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Calosargus (Calosargus) tenuicellulatus Zhang, Yang &amp; Ren ,  sp. nov.</p>
            <p>(Figs. 13–14)</p>
            <p>Diagnosis. Vei n R s 1 short, nearly as long as vein Rs2; vein R2+3 arising slightly proximal of base of cell d; vein R2+3 ending at vein R1 far before wing margin; relative lengths of vein R5 and vein Rs3 about 3: 5; crossvein rm located at basal 1/3 of cell d; cell d slender; base of cell m2 about 3.5 times as wide as that of cell m1; mouth of cell m1 nearly as wide as that of cell m2.</p>
            <p>Etymology. The specific name refers to the Latin tenuis (narrow) and cellulatus (cell), referring to the slender cell d.</p>
            <p>Holotype. CNU-DB-NN2007009, an almost complete adult body with wing in dorsal view.</p>
            <p>Type locality and horizon. Daohugou Village, Shantou Township, Ningcheng County, Inner Mongolia, China; Jiulongshan Formation, Middle Jurassic (Aalenian-Bajocian).</p>
            <p>Description. Body length 10.7 mm; wing length 9.0 mm, wing width 2.3 mm.</p>
            <p>Head round in dorsal view, slightly narrower than thorax. Eyes large, bare, holoptic; ommatidia visible clearly.</p>
            <p>Thorax black. Hind femur distinctly swollen; hind tibia slender, slightly longer than femur, first tarsomere of hind leg distinctly longer than following tarsomeres. Wing elongate, hyaline. Vein C ending at apex of vein R5; veins C and R1 markedly thick; vein Sc long, extending far beyond middle of wing. Vein R1 long and robust; vein Rs1 short, near as long as vein Rs2; vein R2+3 arising slightly proximal of base of cell d; vein R2+3 ending at vein R1 far before wing margin; vein R4 short; vein R5 ending far beyond apex of wing, relative lengths of vein R5 and vein Rs3 about 3: 5. Crossvein r-m located at basal 1/3 of cell d. Vein M3 absent, vein CuA1 arising from cell d. Vein Cup present. Cell sc wide open, apex of cell sc about 3 times as wide as that of cell r4, apex of cell r4 about twice as wide as that of cell r1. Cell d slender, longer than vein M 1 in length; base of cell m2 about 3.5 times as wide as that of cell m1; apex of cell m1 slightly wider than that of cell m2. Cell cup narrow open, about 1/4 as wide as that of cell cua1.</p>
            <p>Abdomen brown, slender, cylindrical; five segments visible. Segment I evidently short. Segments II to V with distinct stria at side. Segments III to V with wide black stripe at each end. Gender unknown.</p>
            <p> Remarks.  C. (C.) tenuicellulatus sp. nov. could be related to  C. (C.) daohugouensis sp. nov. in the following aspects: vein Rs1 short, nearly as long as vein Rs2; relative lengths of vein R5 and vein Rs3 about 3: 5; crossvein r-m located at basal 1/3 of cell d. However, it can be easily separated from the latter by the mouth of cell r4 about twice as wide as that of cell r1, cell d slender, longer than vein M 1 in length, base of cell m2 about 3.5 times as wide as that of cell m1, mouth of cell m1 slightly longer than that of cell m2. In  daohugouensis , the mouth of cell r4 is about 4 times as wide as that of cell r1; cell d is wider, slightly shorter than vein M1; the base of cell m2 is about twice as wide as that of cell m1; the mouth of cell m1 is shorter than that of cell m2. </p>
            <p> Meanwhile,  C. (C.) tenuicellulatus sp. nov. is also very similar to  C. (C.) validus sp. nov. See the remarks of  C. (C.) validus sp. nov. in detail. </p>
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	https://treatment.plazi.org/id/03E787C1FFE0FF90FF6BF8FBFDFBF8D1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Kuiyan;Yang, Ding;Shih, Dong Ren Chungkun	Zhang, Kuiyan, Yang, Ding, Shih, Dong Ren Chungkun (2007): The oldest Calosargus Mostovski, 1997 from the Middle Jurassic of China (Diptera: Brachycera: Archisargidae). Zootaxa 1645: 1-17, DOI: 10.5281/zenodo.179727
03E787C1FFE5FF95FF6BFF36FDEDFE15.text	03E787C1FFE5FF95FF6BFF36FDEDFE15.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calosargus (Calosargus) validus Zhang, Yang & Ren	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Calosargus (Calosargus) validus Zhang, Yang &amp; Ren ,  sp. nov.</p>
            <p>(Figs. 7–8, 15–17)</p>
            <p>Diagnosis. Vei n R s 1 short, nearly as long as vein Rs2; vein R2+3 arising slightly proximal of base of cell d; vein R2+3 ending at vein R1 far before wing margin; crossvein r-m nearly located at basal part of cell d; mouth of cell r4 about twice as wide as that of cell r1; mouth of cell m1 nearly as wide as that of cell m2.</p>
            <p> Etymology. The specific name refers to the Latin:  validus (vigorous). </p>
            <p>Holotype. CNU-DB-NN2007010, an almost complete adult body with both wings in dorsal view.</p>
            <p>Paratype. Part and counterpart CNU-DB-NN2007011, CNU-DB-NN2007012, an almost complete male adult body with both wings in dorsal view.</p>
            <p>Type locality and horizon. Daohugou Village, Shantou Township, Ningcheng County, Inner Mongolia, China; Jiulongshan Formation, the Middle Jurassic (Aalenian-Bajocian).</p>
            <p>Description. Body length 14.5 –17.8 mm; wing length 8.5 – 8.7 mm, wing width 2.6 mm.</p>
            <p>Head subround, slightly narrower than thorax. Eyes large, bare; ommatidia visible clearly.</p>
            <p>Thorax black. Hind femur long and distinctly swollen at apex. Wing hyaline. Vein C ending at wing tip; veins C, Sc and R1 markedly thick; vein Sc long, extending far beyond middle of wing. Vein R1 long and robust; vein Rs1 arising from middle of wing, nearly as long as vein Rs2; vein R2+3 arising slightly proximal of base of cell d; vein R2+3 ending at vein R1 far before wing margin; veins R4 and R5 short; vein R5 ending far beyond apex of wing, relative lengths of veins Rs3, R4 and R5 about 10: 6: 7. Crossvein r-m nearly located at basal 1/3 – 2/5 of cell d. Vein M3 absent, vein CuA1 arising from cell d. Vein CuP present. Cell sc wide open, mouth of cell sc about 3 times as wide as that of cell r4, mouth of cell r1 narrow, mouth of cell r4 about twice as wide as that of cell r1. Cell br nearly as large as cell bm. Cell d wide; base of cell m1 about 1/2 – 2/3 as wide as that of cell m2; mouth of cell m1 nearly as wide as that of cell m2. Mouth of cua1 wide open, about 5 – 6 times as wide as that of cell cup.</p>
            <p>Abdomen cylindrical, covered with setulae. Nine segments visible; segment I evidently short. Segments II to VII with distinct stria at side. Segments II to VI with wide black stripe at each end.</p>
            <p> Remarks.  C. (C.) validus sp. nov. could be related to  C. (C.) daohugouensis sp. nov. in the following aspects: vein Rs1 short, nearly as long as vein Rs2, vein R2+3 ending at vein R1 far before wing margin, base of cell m1 about 1/2 as wide as that of cell m2. However, it can be easily separated from the latter by apex of cell r4 about twice as wide as that of cell r1, and apex of cell m1 nearly as wide as that of cell m2. In  daohugouensis , the apex of cell r4 is about 4 times as wide as that of cell r1; the apex of cell m1 is narrower than that of cell m2. </p>
            <p> Meanwhile,  C. (C.) validus sp. nov. is also similar to  C. (C.) tenuicellulatus sp. nov. in the robust body, vein Rs1 short, nearly as long as vein Rs2, vein R2+3 arising slightly proximal of base of cell d, vein R2+3 ending at vein R1 far before wing margin, apex of cell r4 about twice as wide as that of cell r1. However, it can be easily separated from the latter by cell d wider, base of cell m2 about 1.5 – 2 times as wide as that of cell m1, and apex of cell m1 nearly as wide as that of cell m2. In  tenuicellulatus , crossvein r-m is located at basal 1/3 of cell d; cell d is slender; the base of cell m2 is about 3.5 times as wide as that of cell m1; the apex of cell m1 is slightly wider than that of cell m2. </p>
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	https://treatment.plazi.org/id/03E787C1FFE5FF95FF6BFF36FDEDFE15	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Kuiyan;Yang, Ding;Shih, Dong Ren Chungkun	Zhang, Kuiyan, Yang, Ding, Shih, Dong Ren Chungkun (2007): The oldest Calosargus Mostovski, 1997 from the Middle Jurassic of China (Diptera: Brachycera: Archisargidae). Zootaxa 1645: 1-17, DOI: 10.5281/zenodo.179727
03E787C1FFE7FF94FF6BFDB0FA50FA46.text	03E787C1FFE7FF94FF6BFDB0FA50FA46.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calosargus (Calosargus) hani Zhang, Yang & Ren	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Calosargus (Calosargus) hani Zhang, Yang &amp; Ren ,  sp. nov.</p>
            <p>(Figs. 18–19)</p>
            <p>Diagnosis. A spurious crossvein present between veins R1 and R2+3; vein Rs1 slightly longer than vein Rs2; vein R2+3 ending at vein R1 far before wing margin; mouth of cell r4 about twice as wide as that of cell r1; base of cell m1 about 1/3 as wide as that of cell m2; mouth of cell m1 slightly narrower than that of cell m2.</p>
            <p>Etymology. The specific name refers to collector of this specimen: Mr. Gang Han.</p>
            <p>Holotype. CNU-DB-NN2007013, an almost complete adult body with wings in lateral view.</p>
            <p>Type locality and horizon. Daohugou Village, Shantou Township, Ningcheng County, Inner Mongolia, China; Jiulongshan Formation, the Middle Jurassic (Aalenian-Bajocian).</p>
            <p>Description. Body length 16 mm; wing length about 9 mm, wing width about 2.2 mm.</p>
            <p>Head subround, slightly narrower than thorax. Eyes large, bare; ommatidia visible clearly.</p>
            <p>Fore and mid legs short and thin; hind femur distinctly long and robust; tibiae slender. Wing hyaline, slen- der. Vein C ending at wing tip; veins C, Sc and R1 markedly thick; vein Sc long, extending far beyond middle of wing. Vein R1 long and robust; a spurious crossvein present between veins R1 and R2+3; vein Rs1 arising from middle of wing, slightly longer than vein Rs2; vein R2+3 arising slightly proximal of base of cell d; vein R2+3 ending at vein R1 far before wing margin; veins R4 and R5 short; vein R5 ending far beyond apex of wing, relative lengths of veins Rs3, R4 and R5 about 7: 3: 4. Crossvein r-m nearly located at basal 1/3 of cell d. Vein M3 absent, vein CuA1 arising from cell d. Vein CuP present. Cell sc wide open, mouth of cell sc about 4 times as wide as that of cell r4, mouth of cell r1 narrow, mouth of cell r4 about twice as wide as that of cell r1. Cell br nearly as large as cell bm. Cell d slender; base of cell m1 about 1/3 as wide as that of cell m2; mouth of cell m1 slightly narrower than that of cell m2. Mouth of cua1 wide open.</p>
            <p>Abdomen cylindrical, covered with setulae. Seven segments visible; segment I evidently short.</p>
            <p> Remarks.  C. (C.) hani sp. nov. is more or less similar to  C. (C.) tenuicellulatus sp. nov. However, it can be easily separated from the latter by the distinctly slender wing and cell d, vein Rs1 slightly longer than that of vein Rs2, an excrescent crossvein located between veins R1 and R2+3, and mouth of cell m1 slightly narrower than that of cell m2. In  tenuicellulatus , the wing and cell d are wider than in  hani ; vein Rs1 is short, nearly as long as vein Rs2; an excrescent crossvein is absent; the mouth of cell m1 is slightly longer than that of cell m2. </p>
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	https://treatment.plazi.org/id/03E787C1FFE7FF94FF6BFDB0FA50FA46	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Kuiyan;Yang, Ding;Shih, Dong Ren Chungkun	Zhang, Kuiyan, Yang, Ding, Shih, Dong Ren Chungkun (2007): The oldest Calosargus Mostovski, 1997 from the Middle Jurassic of China (Diptera: Brachycera: Archisargidae). Zootaxa 1645: 1-17, DOI: 10.5281/zenodo.179727
