364 



THE CANADIAN ENTOMOLOGIST 



are separated from .S. hullata by the character of the cheek vestiture 

 and the notiim of the first genital segment which is composed of 

 one piece, as are the abdominal nota, and not divided into two 

 lips. In addition, the female of 5. dalmatina has one complete 

 row of cilia behind the eyes instead of two. 



In :i discussion following the description of Sarcophaga cooleyi 

 R. Parker (Can. Ent., vol. 46, pp. 417-423, Dec, 1914), known 

 at present only from Montana, Wyoming and Utah, it was suggested 

 that this species and S. buUaia were close relatives. The genital 

 segments of the females are very similar; those of cooleyi are in- 

 teresting in that they show (at the sides) parts of a distinct fifth 

 abdominal (sixth morphological) segment with its spiracles. 



Among my material are 

 several reared specimens of S. 

 hullata which have light rather 

 than dark palpi. The parts of 

 the penis may be less compact 

 and separated to a greater extent 

 than figur<.'d in the drawing. 



Felt (1013, see bibliography) 

 described the larval and pupal 

 stages from specimens reared on 

 the head of a dead calf. From 

 larviposition to adult was found 

 to take from thirty-four to thirty- 



^Tgmenu''of' mile"' '''■■ *'""''''' ^'^^ ^^^V^ ^-^"g- ^^ tO Sept. 15 tO 



17). Dr. Felt very kindly sent 

 me six females from the specimens reared, which are unquestion- 

 ably 5 bullata. Metz (Station for Experimental Evolution, 

 Cold Spring Harbor, Long Island), during the summer of 1914 

 reared this species on meat in several experiments. Undoubtedly 

 it breeds in carrion. I also have records of its capture on cow dung, 

 and at Springfield, Mass., captuied it on human excrement. One 

 specimen in the Massachusetts Agricultural College collection is 

 labelled as caught fiying around the "burrows of Crypt or hynchus 

 lapathi (Linnaeus)." A female received from C. H. Richardson 

 was captured on cow dung. Specimens have also been reared 

 from eggs. (To be continued) 



Fig. 1<». 



Mailed October 13, 1916 



