426 THE CANADIAN ENTOMOLOGIST 



Genital segments. — Protuberant, visible from above. The 

 two broad lateral lips of first genital segment distinctly separate 

 dorsally; dull orange, sometimes slightly darkened, occasionally 

 yellowish pollinosc ventrally; upper edges fringed with hair and 

 bristles, latter mostly above lines of spiracles which are close to 

 anterior margin. Spiracles of fifth segment usually concealed. 

 Sixth ventral plate (seventh anatomical) with posterior marginal 

 bristles at each side of centre and not Overlapped by lips of first 

 genital notum. 



Described from 3 male and 2 female specimens, many others 

 examined. 



Range. — New England: Mass.: Woods Hole, Boston, Lowell, 

 Cohasset, Gloucester, Cambridge, New Bedford, Wellesley, Mel- 

 rose, Chester, Amherst; Me.: E. Eddington, Orr's Island, Buckfield; 

 Conn.: New Haven. 



United States.— N. Y.. N. H., Pa., Ohio, HI., Wy. 



Bottcher (1912) has shown that S. scoparia Pandelle should 

 more properly be called Sarcophaga mater tera Rondani. S. scoparia 

 nearctica is one of the most variable flies of this group with which 

 we have to deal in New England; the description gives ample evi- 

 dence. The characters of the penis are as much vso as the external 

 characters. In the figure of the genitalia a lateral distal process 

 may be noted ending anteriorly in two sharp projections. Some- 

 times the lower projection is lacking while in other specimens the 

 two processes are united anteriorly, forming a sort of distal ring. 



Among my material are one female and two male specimens 

 of the Palearctic species, 5. scoparia. These differ considerably 

 from the American subspecies. The genital segments and genitalia 

 are black or blackish, the bristles of the thorax are longer and more 

 slender, and its vestiture more hairy. Some of our specimens ap- 

 proach the European as regards cha?totaxy and vestiture, but I 

 have seen none with any tendency toward black genital segments, 

 though the first is sometimes brownish. It is possible that our 

 North American subspecies might justifiably be designated as a 

 species. 



