Tachydromia
Creators: name: Shamshev, Igor
name: Grootaert, Patrick
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Hybotidae
Tachydromia

description: Key to Tachydromia species of the Oriental Region
1. Halter with brown to black knob.................................................................................................................2
–. Halter entirely yellow..................................................................................................................................5
2. Wing with large brown patch on subapical part (Fig. 26)...........................................................................3
–. Wing brownish infuscate leaving subapical part whitish, brown along anterior margin Figs. 24, 25).....4
3. Antenna with basal segments yellowish, postpedicel brownish. Fore femur with brown elongate ventral patch basally; hind femur brown on apical 1/4; hind tibia brown on about apical 2/3. Male: fore tibia mostly bare posteriorly but with rather long curved thin setae along sides of bare space (Thailand)........... ............................................................................................................................................ T. tigeri sp. nov.
–. Antenna with basal segments blackish, postpedicel yellowish. Fore and hind femora entirely yellow; hind tibia almost entirely brown, brownish yellow apically. Male: fore tibia unmodified (China, Guangdong) .. ........................................................................................................... T. guangdongensis Yang & Grootaert
4. Fore femur largely brownish; hind femur pale yellow on basal 1/5, otherwise dark brown; hind tibia brown on basal 1/3–1/2. Male: fore tibia unmodified (Thailand) ............................... T. phanensis sp. nov.
–. Fore femur almost entirely yellowish, indistinctly brownish clouded posteriorly on subapical part; hind femur broadly brownish on middle part; hind tibia dark brown on about apical half. Male: fore tibia slightly curved (viewed dorsally), with ventral spinules becoming stronger on apical half and several spinule-like setulae posteriorly near middle (Thailand) ........................................................ T. phu sp. nov.
5. Wing with 2 broad brownish bands separated along entire length or connected somewhere.....................6
–. Wing with more or less distinct brownish patch closer to wing apex or (rarer) lacking prominent pattern (Fig. 30).....................................................................................................................................................10
6. Antenna yellow. Hind femur brownish on apical half, hind tibia black brown on apical 1/6–1/5. (Thailand, Singapore) ................................................................................................... T. luang Shamshev & Grootaert
–. Antenna dark brown to black (sometimes basal segments somewhat darker). Hind femur and tibia largely blackish brown.............................................................................................................................................7
7. Palpus pale yellow (China, Henan) ............................................................... T. henanensis Saigusa & Yang
–. Palpus dark...................................................................................................................................................8
8. Hind femur brown on apical 2/3 (Thailand) ............................................................. T. monocercus sp. nov.
–. Hind femur entirely blackish brown............................................................................................................9 [T. papuana Grootaert, the only Tachydromia species known from Australasian Region, belongs here.]
9. Laterotergite with thin finger-like process. Wing with bands connected on cells r1 and r4+5. (China, Henan) ..................................................................................................................... T. digitiformis Saigusa & Yang
–. Laterotergite unmodified. Wing with 2 broad brown bands separated along the whole length (India) ........ ............................................................................................................................. T. latifascipennis Brunetti
10. Hind femur entirely yellow........................................................................................................................11
–. Hind femur brown on apical part...............................................................................................................12
11. Fore tarsomeres 4 and 5 brown. Hind tibia brownish on about basal half (Thailand) ............ T. doi sp. nov.
–. Only fore tarsomere 5 darkened on apical half. Hind tibia entirely yellow (Thailand).................................
........................................................................................................ T. terricoloides Shamshev & Grootaert 12. Palpus yellowish brown. Fore tibia almost entirely brownish, extreme base yellow. Wing largely finely infuscate, somewhat deeper on middle part along veins (Thailand) ......... T. thaica Shamshev & Grootaert
–. Palpus pale yellow. Fore tibia at most brownish apically. Wing with 1 or 2 brownish patches on subapical part.............................................................................................................................................................13
13. Wing with 2 brownish patches on subapical part (Fig. 27); vein R2+3 incomplete (Thailand), male ............ ........................................................................................................................................ T. ocellata sp. nov.
–. Wing with 1 brownish patch on subapical part (female T. ocellata has also only one patch, Fig. 31); vein R2+3 complete..............................................................................................................................................14
14. Fore tarsomeres 4 and 5 brown; mid tibia yellow; hind femur on apical half (except for apex) and hind tibia in basal 2/3 blackish (China, Henan) ............................................ T. longyuwanensis Saigusa & Yang
–. Only fore tarsomere 5 darkened on apical part; mid tibia blackish; hind femur darkened on apex; hind tibia yellow (Taiwan) ...................................................................................................... T. bistigma (Bezzi)
description: Published as part of Shamshev, Igor & Grootaert, Patrick, 2008, New and little-known species of the genus Tachydromia Meigen (Diptera, Hybotidae) from Thailand, pp. 21-36 in Zootaxa 1830 on pages 22-23, DOI: 10.5281/zenodo.183188