SARCOPHAGA AND ALLIES 259 



half the eyeheight, covered with gray pollen, its hairs 

 largely whitish ; back of head with two rows of black 

 hairs, the whole central part and below with whitish 

 hair. 



Thorax yellowish gray pollinose, with three to 

 five brown or black stripes; the submedian gray 

 stripes divided for three-fourths of their length ; only 

 two of the ps dc are distinct, the hindmost ones, the 

 remainder very small; ant acr none; prsc one; stpl 

 three; scutellum with the usual two marginals, one 

 preapical and a small pair of apicals ; the second scu- 

 tellar marginal is very strong. 



Abdomen gray pollinose, tessellated, with black- 

 ish median stripe and a shifting lateral one each side ; 

 fourth segment broadly red at tip; first and second 

 segments with only lateral bristles; third with a 

 median marginal pair and two laterals; the fourth 

 with a row of about 16, diminishing at the sides. Fifth 

 sternite brown at base, with conspicuous smooth yel- 

 low plate-like bare arms, which however have a prom- 

 inent lobe on the inner side near the base, bearing a 

 tuft of small hairs. 



Hypopygium yellow, first segment rather pol- 

 linose, with only small hairs along the hind margin; 

 second segment shining, globose; forceps red, brown- 

 ish at tip, with long hair on the attached part; the 

 free part is comparatively short, with a flat, concave 

 plate on the outer side forming the tip. This plate 

 is polished in the center and fringed with reddish hairs 

 around the margin, which is elevated and strongly set 

 off from the remainder of the forceps. Accessory 

 plate large, its hind edge next the forceps tliin and 

 drawn out into a yellow flat hook at the apex; pos- 

 terior clasper blackish, rather straight and slender; 

 anterior clasper red at base, black at tip, rather low 

 and straight, rapidly tapering. Near the base on 

 the inner front side is a long thumb-like process, 

 very characteristic. Penis yellow, with large basal 

 segment, the apical one very complex, consider- 

 ably like that in utilis. There is a large anterior 



