Calliphora. 151 



1. C. erythrocephala Meig. 



1826. Meig. Syst. Beschr. V, 62, 22 (Musca). — 1838. Zett. Ins. Lapp. 

 656, 15 et 1845. Dipt. Scand. IV, 1329, 2 (Musca). — 1862. Schin. F. A. I, 

 584. — 1896. Pand. Rev. Entom. XV, 213, 9. — 1907. Kat. palåarkt. Dipt. 

 III, 546. — 1917. Kram. Abhandl. Nat. Geseli. Gorlitz, 27, 28, 290, Fig. 4. — 

 1924. Stein, Arch. f. Naturgesch. 90, 6, 265, 2. 



Male. Frons narrow above but the orbits somewhat broad and 

 not toiiching. Orbits grey above, downwards whitish silvery, cheeks 

 more yellowish white pruinose with dark reflexes, especially a brownish 

 spot at the root of antennæ; jowls and intermediate triangle red, the 

 former greyish pruinose. Frontal stripe black to brown. Orbits and 

 upper half of cheeks with fme hairs; jowls black-haired. Occiput 

 greyish pruinose, with pale hairs and black hairs behind postocular 

 bristles. Antennæ black, junction of second and third joint more 

 or less reddish; third joint about four times as long as second. Palpi 

 yellow. Thorax bluish with a fme whitish pruinosity, dull; there 

 are four slightly marked dark stripes, the median abbreviated at the 

 suture, the lateral widely interrupted at the suture into spots. Thorax 

 black-haired. Abdomen blue, somewhat shining, with a fme bluish 

 white pruinosity, shifting according to view; on third and fourth 

 segment there are often more or less distinctly two median spots 

 and at hind margin a transverse lateral spot on each side, these 

 spots shifting from white to blue according to view; a median stripe 

 more or less visible. Abdomen black-haired; third segment with 

 a marginal row of bristles or bristly hairs, fourth with a row of bristles. 

 Legs black. Wings about hyaline or a little tinged, darker at base, 

 with black veins. Squamulæ brownish black, the lower with a white 

 margin, hairy. Halteres dark brownish. 



Female. Similar; frons broad, broader than the eye; orbits 

 greyish; frontal stripe black to brown. 



Length 7 — 12 mm. 



C. erythrocephala is common everywhere from early spring to 

 late autumn; it very often comes into houses. 



Geographical distribution: — Cosmopolitan or nearly, towards 

 the north found in Greenland at least to 70° L. N. It has been intro- 

 duced in Australia. 



2. G. vomitoria Linn. 



1758. Linn. Syst. Nat. X, 1, 595, 5 (Musca). — 1821. Fall. Dipt. Suec. 

 Muse. 47, 22 (Musca). — 1826. Meig. Syst. Beschr. V, 60, 21 (Musca). — 1838. 



