Sarcophaga. 197 



lobes. Middle femora long-fringed, hind femora with a shorter fringe 

 below; hind tibiæ with long f ringes on antero- and posteroventral 

 sides; middle tibiæ with short fringes distally on posteroventral 

 side; middle femora with a comb but no posteroventral bristles 

 inwards; hind femora with an anteroventral row of strong but distant 

 bristles. Wings a little tinged; costal segment 3 longer than 5; sub- 

 costal vein bare; no costal spine. 



Female. I have not seen the female; after Bottcher it has the 

 frons about as broad as the eye. The sixth abdominal segment bright 

 red, with a dorsal split so that two dorsally converging lips are formed, 

 which in the middle have long, dense bristles ; this character together 

 with the wanting præscutellar acrostichals should make it easily 

 recognized. 



Length 11 — 12 mm (after Bottcher 8 — 15 mm). 



S. haemorrhoidalis seems to be rare in Denmark, I know only 

 two males, taken at Copenhagen in a garden on ^^/g and ^/g (the 

 author). 



Geographical distribution: — Widely distributed; all Europe, 

 most of Asia and Africa and also in North America; it seems to be 

 more common in southern districts. It is recorded as parasite on 

 Pachytylus migratorius^ but has also been bred from human excre- 

 ments, and Aldrich {Sarcophaga and its Allies in N. America, 1916, 

 191) records several cases of its being bred from larvæ passed from 

 human alimentary canal. 



20. S. falculata Pand. 



1896. Pand. Kev. Entom. XV, 18.5, 20. — 1907. Villen. Ann. Soc. Ent. 

 de Fr. LXXVI, 395. — 1907. Kat. palåarkt. Dipt. III, 480. — 1911. Kram. 

 Abhandl. Nat. Gesell. Gorlitz, 27, 34, Tab. II, Fig. 16. — 1913. Bottcli. Deutsch. 

 Ent. Zeitschr. 13, Fig. 39. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 199. — 

 S. nurus Rond. p. p. 1860. Atti Soc. Ital. Se. Nat. III, 392, 30 et Dipt. Ital. 

 Prodr. V, 124, 31. 



Male. Frons half as broad as the eye or a little broader, orbits 

 more than half as broad as the frontal stripe. Orbits and face whitish 

 silvery; jowls greyish white; frontal stripe black. No outer vertical 

 bristles. Bristles on cheeks somewhat weak, numerous, in one row. 

 Jowls for the most part white-haired, only black-haired just in front. 

 Occiput grey, with white hairs and only one row of black hairs behind 

 postocular bristles. Antennæ with third joint about one and a half 

 times as long as second, reaching to the lower end of the eye. Thorax 



