48 THOMAS SAY FOUNDATION 



than adjacent hairs; palpi black, ordinary; proboscis 

 black, very short, fleshy. 



Thorax strongly bristled, subshining black all 

 over, but when viewed from behind showing the three 

 main stripes as in Sarcophaga, dark with pollinose 

 interspaces ; 3 ps dc ; 3 stpl ; anterior acrostichals very 

 strong, 3 pairs; prescutellars also large, equal to the 

 dc beside them; scutellum with three pairs of mar- 

 ginals, of which the basal as usual are rather on the 

 upper edge of the margin, the other four bristles are 

 of equal length and equally spaced around the apical 

 Y>aYt; a large discal pair also on scutellum; notopleu- 

 ral two large and two small. 



Abdomen rather cylindrical, black with almost 

 silvery pollen in a tessellated pattern, leaving an in- 

 distinct median black stripe and somewhat shining 

 hind margins ; second segment with a large, erect pair 

 of median marginal bristles; third and fourth with 

 each a marginal row of 18 or 20. 



Hypopygium of smallish size, subopaque, black; 

 first segment with a row of small bristles ; second witii 

 rather numerous erect black hairs ; forceps black, quite 

 straight and tapering, with long black semi-recum- 

 bent hair behind except apically; accessory plate 

 blackish, ending in an acute angle; posterior clasper 

 smaller than anterior, deeply excised in front and 

 ])earing a long hair; penis rather short and stout, the 

 distal segment bent forward with a blunt angle be- 

 hind, below it in front a pair of black projecting 

 points and basad of these a pair of long processes 

 rather rolled in at tip ; sternites sliglitly decreasing in 

 width, the fifth concealed. 



Legs black, strong and bristly; middle femur 

 with long bristles but no comb below; middle tibia 

 with two bristles on outer front side near middle ; hind 

 tibi^ without villosity. 



Wings subliyaline, slightly yellowisli ; a large 

 costal spine; fourth vein witli rounded bend, ending 

 moderately (but not vxry) far before tip, the first 

 posterior cell rather narrowly open in the two males ; 



