SARCOPHAGA AND ALLIES 279 



dense black hair; forceps brown, small; from behind 

 they are uniformly divergent and tapering to a point ; 

 in profile they curve gently forward, tapering to a 

 point; accessory plate swollen, yellow, with a promi- 

 nent pointed free end; posterior clasper rather slen- 

 der, strongly curved, with blunt tip ; anterior clasper 

 a little lighter in color, stout at base, with a very slen- 

 der sharp tip, which is strongly curved downward; 

 penis with simple slender brown basal joint, the dis- 

 tal one swollen, rather globose, very simple, with a 

 pair of lobes in front, the tips of which are curved 

 toward the apex of the segment ; the basal part of the 

 distal segment is almost transparent 



Legs black; front femur with a comb below on 

 the apical half of the anterior side ; middle femur with 

 comb both in front and behind on the lower side ; hind 

 femur also with strong rows of bristles below, hardly 

 forming combs; middle tibia with three bristles on 

 the outer front side; hind tibia without villosity. 



Wings hyaline ; no costal spine ; third costal seg- 

 ment shorter than fifth; first vein bare, third with a 

 few hairs at base. 



Female: Front .398 of head (average of two, — 

 .392 and .405) . Orbitals and outer verticals present; 

 third antennal joint quite short and rounded; genital 

 segments entirely yellow, no specialized larvipositor 

 present; femur without comb although with rather 

 numerous small bristles. 



Length 8-10 mm. 



Two males and two females. One male, the 

 holotype, received from Wm. T. Davis with the fol- 

 lowing label "From larva bred in sore in side of box 

 turtle, Plainfield, N. J., hatched June, 1912. W. 

 DeW. Miller, col." 



One male, two females, in the Hough collection 

 without label. 



Holotype and allotype. — Male and female, in 

 collection of Wm. T. Davis. 



Regarding the occurrence of Sarcophaga larvae 

 in swellings in the skin of box turtles (Cistudo) the 



