SARCOPHAGA AND ALLIES 57 



ordinary ; back of head with about four rows of black 

 hairs, the inner irregular, and with considerable pale 

 yellow hair about the neck and below, which does not 

 extend forward on the bucca. 



Thorax gray pollinose, with 3-,) black stripes; 

 the submedian gray stripes divided farther than the 

 suture. 



Abdomen gray pollinose, with black median 

 stripe and two shifting lateral ones; fourth segment 

 red behind more or less broadly, and a faint reddish 

 tinge showing on the sides of the third and even the 

 second segment; first and second with only lateral 

 bristles ; third with a stout median marginal pair and 

 several laterals, making an interrupted row; fourth 

 with a row of about a dozen. 



Hypopygium red; first segment of medium size, 

 subshining, with row of bristles behind ; second rather 

 small, with some erect bristly hairs; forceps red on 

 basal half, not large, tapering to middle, then with a 

 sudden enlargement almost like a barb behind, not 

 much tapering beyond, the tip blunt and rounded. 

 Accessory plate red, finger-like; posterior clasper 

 red, with brown flat tip not nmch hooked; anterior 

 clasper black from middle, with flat rather straight 

 tip. Penis with short, red basal segment much re- 

 tracted; distal segment becoming black, rounded but 

 not greatly enlarged at tip, bearing a striking pair of 

 large red outstanding arms on the front side beyond 

 the middle. Fifth sternite red, inconspicuous, V- 

 shaped, with only small hairs on inner side and very 

 few bristles on edge. 



Legs black; middle femur with two rows of 

 spines below, the posterior forming a comb; middle 

 tibia with two bristles on outer front side ; hind femur 

 with two rows of long bristles below; hind tibia not 

 villous, with long bristles on hind side. 



Wings sub-hyaline; no costal spine; third costal 

 segment longer than fifth and six together ; first vein 

 bare ; third hairy at base for a short distance. 



Length 13-1.5 mm. 



