210 Tachinidae. 



not ascending. Epistoma somewhat broadened downwards, not 

 retreating and almost not or only slightly reflected. Oral cone and 

 proboscis rather short. Antennæ inserted at the middle of the eye, 

 third joint about twice as long as second; arista somewhat short- 

 plumose in basal half. Thorax rectangular; three postsutural dorso- 

 centrals and two præsutural and a pair of præscutellar acrostichals. 

 Two notopleural bristles. Scutellum with three marginal bristles 

 on each side, the apical the strongest in both sexes; a pair of discai 

 bristles. Three sternopleural bristles in position 2 — 1. Pteropleura with 

 hairs and a bundle of small bristles above. Abdomen conical; excava- 

 tion on second segment reaching the margin in male, but only basal 

 in female. There are only marginal bristles and none on second and 

 third segment. Fifth sternite not excised. Præhypopygial segment 

 short above, bending rectangularly down, with a series of bristles 

 at the bend. Hypopygium small; iipper forceps short, only short 

 cleft at apex; lower forceps well developed, with the arms curved, 

 as long as upper forceps. Legs with hind coxæ not hairy behind; 

 middle femora in male with a posteroventral distal comb and middle 

 tibiæ in this sex without ventral bristle; hind femora with antero- 

 dorsal and anteroventral bristles but no intermediate row. Claws 

 and pulvilli elongated in male. Wings with first posterior cell open, 

 ending somewhat near apex of wing; discai angle rectangular with 

 a fold from the angle; cubital vein with bristles to near medial cross- 

 vein; no distinct costal spine. 



The species are parasitic on, or attack and eat, lepidopterous 

 larvæ and pupæ, and ajfinis is also recorded from Empria and 

 Pachijtylus. 



Of the genus three species are known, two occurring in Denmark. 



Tahle of Species. 



1. Genitalia without protuberances 1. affinis. 



— Genitalia with four squarely placed round protuberances 



at end 2. mamillata. 



1. A. affinis Fall. 



1816. Fall. Vet. Acad. Handl. 230 et 1820. Dipt. Suec. Muse. 39, 4 {Mmca). 



— 1826. Meig. Syst. Beschr. V, 30, 27, tab. XLIII, Fig. 10 (Sarcophaga). — 

 1845. Zett. Dipt. Scand. IV, 1293, 13 {Sarcophaga). — 1862. Schin. F. A. I, 

 574 (Sarcophaga). — 1907. Kat. palåarkt. Dipt. III, 469, p. p. (Sarcophaga). 



— 1908. Kram. Entom. Wochenbl. XXV, 200, Fig. 1 (Pseudosarcophaga) et 



