SARCOPHAGA AND ALLIES 203 



second antennal joint; ocellar bristles rather slen- 

 der; parafacials rather wide, with the usual row of 

 hairs, which are rather long and slender below; an- 

 tennae black, the third joint more than twice the sec- 

 ond, reaching three-fourths of the way to the vibrissas, 

 which are at the oral margin; arista plumose slightly- 

 more than halfway; palpi and proboscis black, ordi- 

 nary; bucca almost half the eyeheight, with abund- 

 ant white beard, which extends over the back of the 

 head, there being only a single row of black hairs 

 behind the eye. Outer vertical bristles hardly larger 

 than the adjacent hairs. 



Thorax gray pollinose, with the usual three to 

 five black stripes; the two submedian gray stripes 

 divided before the suture; ps dc rapidly diminishing 

 in size, the hindmost one strong, several in front of 

 this dwindling to about the size of the adjacent hairs; 

 ant acr not differentiated from hairs; prsc one pair; 

 stpl three; scutellum with two marginal, one small 

 subapical and one small apical pair. 



Abdomen gray, tessellated, with an indistinct 

 middle stripe. First and second segments with only 

 lateral bristles; third with one median marginal and 

 one lateral pair; fourth entirely black with a mar- 

 ginal row of 14.. 



Hypopygium rather dark red; first segment of 

 moderate size, shining, along the hind margin some- 

 what darker in color and with a row of short, rather 

 stout bristles; second segment globose, shining, with 

 nmnerous hairs but no bristles. Forceps wide and 

 short, in profile with a moderate hump before the 

 apex, thence obliquely truncate or a little concave 

 to a hooked tip, which is on the front edge. Acces- 

 sory plate rather large, thick and dark brown, oval 

 in shape; posterior clasper rather stout, brown, 

 cui-ved forward to a sharp apex; anterior clasper 

 blackish, rather straight and flat toward the tip; 

 penis mostly blackish; basal segment of moderate 

 length; distal segment broad and rather thick, with 

 two small lobes protruding from the apex, which are 



