468 Tachinidae. 



10. A. versicolor Fall. 



1820. Fall. Dipt. Suec. Muse. 19, 36 {Tachina). — 1824. Meig. Syst. Beschr. 

 IV, 354, 198 {Tachina) et 1838. VII, 243, 13 (Thryptocera). — 1844. Zett. Dipt. 

 Scand. III, 1047, 40 et 1849. VIII, 3230, 40 et 1858. XII, 4692, 40 {Tachina). 

 — 1907. Kat. palåarkt. Dipt. III, 392. — 1924. Stein, Arch. f. Naturgesch. 90, 

 6, 137, 17. — Tachina latifrons Meig. 1. c. IV, 365, 217 et 1838. VII, 243, 5 

 {Thryptocera) ? — 1862. Schin. F. A. I, 519 {Thryptocera). — 1889. B. B. Denk- 

 schr. Akad. Wiss. Wien, LVI, 102, Tab. V, Fig. 84 {Thryptocera). — 1896. 

 Pand. Kev. Entom. XV, 103. 7 {Peteina). — 1907. Villen. Ann. Soc. Ent. de Fr. 

 LXXVI, 391. — 1907. Kat. palåarkt. Dipt. III, 392. 



Male. Frons considerably broader than the eye, a little pro- 

 truding; jowls at most half the height of the eye. Orbits, cheeks and 

 jowls greyish or yellowish grey; frontal stripe reddish, broader than 

 orbits. Frontal bristles few in number. Vibrissæ qiiite slightly ascend- 

 ing. The hairs on orbits continued down just on iipper part of cheeks. 

 Occiput yellowish grey, with black hairs behind postocular bristles 

 and pale hairs downwards. Antennæ black, basal joints reddish; 

 third joint about three times as long as second; arista with first joint 

 distinct, second elongated and third thickened in basal third. Palpi 

 yellow. Thorax greyish, with two very narrow median lines in front, 

 and a very broad brown stripe on each side; scutellum grey. Thorax 

 black-haired ; three postsutural dorsocentrals. Abdomen grey with 

 the hind margins of the segments brown, indistinctly bordered to- 

 wards the grey, and more or less divided into three spots; fifth seg- 

 ment quite grey. Abdomen has somewhat long, black hairs and 

 discai and marginal bristles, on second segment a pair of marginal, 

 on third a pair of discai and marginal and on fourth a pair of discai 

 and a row of marginal. Legs rather robust, yellowish, tarsi somewhat 

 obscured; front femora greyish pruinose on posterior side, posterior 

 femora pale pruinose on anterior side; tibiæ with numerous rather 

 long and strong antero- and posterodorsal bristles. Wings a little 

 tinged; veins blackish; first posterior cell just or about closed, ending 

 just before apex of wing; posterior cross-vein about at middle between 

 medial cross-vein and angle; anal vein reaching near to the margin; 

 cubital vein with strong bristles stretching to medial cross-vein or 

 a little beyond. Squamulæ whitish. Halteres reddish brown. 



Female. Similar; frons of same breadth; antennæ quite pale, 

 as large as in male. Thorax with the stripes more distinct, the median 

 distant. Abdomen more brown, the segments mainly only yellowish 

 grey pruinose at front margins, produced irregularly backwards 



