SARCOPHAGA AND ALLIES 65 



hairs on the hind edge. Posterior clasper rather short 

 and slender, with a sharp hook at tip ; anterior clasper 

 red, rather wide, much larger than tlie posterior, ap- 

 parently trucate at tip. Penis with sliort and rather 

 concealed hasal segment; distal segment reddish 

 hrown, shining, deeply notched in apex into two sim- 

 ple lateral lobes which extend considerably forward; 

 on the front side near the middle of the segment are 

 two simple processes, between the tips of these a slen- 

 der, tapering flat membrane projects toward the 

 apex, the tips of which curve back between the apical 

 lobes. The fifth sternite entirely undivided, project- 

 ing at its hind edge. 



Legs black; middle femur with short comb be- 

 loAv on hind side ; middle tibia with two bristles on the 

 outer front side; hind tibia not villous. All the pul- 

 A'illi and claws very long, the former brown. 



Wings slightly and uniformly infuscated; costal 

 spine small; third costal segment about equal to the 

 fifth; distance fi'om tip of fourth segment to apex is 

 equal to three-fourths of the fifth costal segment. 

 First Acin bare; third vein hairy nearly to crossvein; 

 epaulet rather dark yelloAv; sub-epaulet light yellow. 



Female. Front .346 of head (average of two, — 

 .325, .366) ; the upper part of parafacials is change- 

 able in color and this is more noticeable in the female 

 than in the male; third antennal joint broad and 

 rounded; ])alpi slightly clavate; genital segment red 

 with rounded orifice fringed with black hairs; costal 

 spine rather strong; middle femur without comb. 



Length 6.5-10.5 mm. 



Three miles and two females. Two of each sex 

 are from Melrose Highlands, Mass., H. E. Smith, 

 collector. The other male is from Lunenburg, 

 Mass., R. T. Webber, collector. 



Holotype.— Male, No. 20,494, U. S. N. M., 

 Melrose Highlands, Mass. 



Allotype.— Female, Xo. 20,494, U. S. X. M., 

 Melrose Highlands, Mass. 



