SARCOPHAGA AXD 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 the posterior, ap- 

 parently trucate at tip. Penis with short and rather 

 concealed basal segment; distal segment reddish 

 brown, 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 tijis 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- 

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

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

 villi and claws very long, the former brown. 



Wings slightly and uniformly infuscated; costal 

 spine small; third costal segment about equal to the 

 fifth; distance from tip of fourth segment to apex is 

 equal to three-fourths of the fifth costal segment. 

 First vein bare; third A^ein hairv nearlv to crossvein: 

 epaulet rather dark yellow; 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; palpi 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. Tlie other male is from I^imenburg, 

 ]\Lnss., IL T. AVebber, collector. 



Holotype.— :\Iale, Xo. 20,494, I^ S. X. M., 

 Melrose Highlands. ^Nlass. 



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

 Melrose IIii>'lilan<ls. Mass. 



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