SAKCOPHAGA AND ALLIES 301 



ward to the flat tip ; the anterior clasper has a process 

 in front near the base, beyond which it bends forward 

 very strongly and is elongated and nearly straight, 

 with a thin margin below near the apex simulating a 

 second point; the penis is of a single joint, of which 

 the basal part is long, cylindrical and shining yellow; 

 bej^ond the middle it is constricted and then expands 

 into a globular tip which bears a small plate on the 

 front edge turned back toward the base and closely 

 applied to the body of the segment; at its apex there 

 are a few small pointed plates directed forward. 



Legs black; middle femur with comb; middle 

 tibia with one bristle on outer front side; hind tibia 

 without villosity. 



Wing subhyaline; no costal spine; third costal 

 segment shorter than the fifth; first and third veins 

 with a row of hairs. 



Female. Front .294 of head (average of five, — 

 .282, .282, .300, .300, .304). Orbitals and outer ver- 

 ticals distinct. Thorax marked as in the male. The 

 bristles of the third abdominal segment are appressed 

 and not very distinct. Genital segment red, without 

 any peculiar characters ; middle femur without comb. 



Length 4-61/2 mm. 



Twenty-three specimens of both sexes, Havana, 

 Cuba. All collected by Professor C. F. Baker and 

 donated to the writer many years ago. 



Holotype and allotype. — Male and female, No. 

 2057.5, U. S. N. M. 



