Cynomyia. 161 



ridges a little converging just below; short and fine vibrissæ ascending 

 to middle. Eyes with the facets in male slightly enlarged towards 

 inner margin above. Epistoma not retreating, a little reflected in 

 lower part. Oral cone and proboscis of medium length; clypeus 

 elongated horse-shoe-shaped. Palpi thread-like. Antennæ inserted a 

 little above middle of the eye; third joint about four times as long 

 as second; arista long-plumose in about basal two thirds. Thorax 

 rectangular; three postsutural dorsocentrals and two præsutural and 

 a præscutellar pair of acrostichals; no præsutural intraalar bristle. 

 Scutellum with three marginal bristles on each side and besides a 

 more or less weak basal and a pair of discai bristles. Three sterno- 

 pleural bristles in position 2 — 1. Pteropleura with a dense tuft of 

 hairs above. Propleura hairy. Abdomen elongated conical; excavation 

 on second segment reaching the margin. Only marginal bristles 

 present as rows on fourth and fifth segment; in female the whole 

 fifth segment covered with strong bristles. Sternites unusually broad; 

 fifth sternite in male deeply cleft to near base. Genitalia large, pro- 

 truding, bent in under venter; upper forceps elongate triangular, 

 rather short; arms of lower forceps long and strong, much longer 

 than upper forceps. Legs in male with femora long-haired below but 

 without bristles, in female with strong bristles; claws and pulvilli 

 in male strongly elongated. Wings with first posterior cell open, 

 ending somewhat before apex of wing; discai angle rectangular; 

 anal vein reaching near to margin; cubital vein with bristles only 

 at base. No costal spine. Lower squamula hairy on upper surface. 



The larvæ live in decaying animal matter, especially in carrion. 

 The species is oviparous. 



Only one European species is known, also occurring in Den- 

 mark. 



1. C. mortuorum Linn. 



1758. Linn. Syst. Nat. X, 1, 594 (Musca). — 1805. Fabr. Syst. Antl. 

 290, 32 {Musca). — 1821. Fall. Dipt. Suec. Muse. 45, 18 {Musca). — 1826. 

 Meig. Syst. Beschr. V, 16, 1 {Sarcophaga). — 1838. Zett. Ins. Lapp. 650, 6 

 {Musca) et 1845. Dipt. Scand. IV, 1303, 25 {Sarcophaga). — 1862. Schin. 

 F. A. I, 575. — 1896. Pand. Rev. Entom. XV, 212, 7 {Calliphora). — 1907. 

 Kat. palåarkt. Dipt. III, 554. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 267. 

 — Musca vomitoria Fabr. (nec Linn.) 1781. Spec. Ins. II, 439, 17 et 1805. 

 Syst. Antl. 290, 34. 



Male. Frons above about half as broad as the eye, somewhat 

 protruding. Orbits blackish to greyish just above, for the rest together 



11 



