SARCOPHAGA AND ALLIES 157 



yellowish pollen behind. Outer vertical bristles ab- 

 sent. Ocellars slender. 



Thorax with yellowish gray pollen and very dis- 

 tinct black stripes; ps dc 3; ant acr well developed; 

 prsc quite small; stpl 3; scutellum with 2 long mar- 

 ginal, 1 smallish subapical, and a rather large pair 

 of apicals. 



Abdomen with yellowish gray changeable pol- 

 len. A distinct median black stripe on the second and 

 third segments, which is shining in certain lights. 

 First and second segments with only marginal bris- 

 tles; third with an interrupted row, and fourth with 

 a row of about 14. 



Hypopygium small. First segment red, a little 

 brownish at the base, with slender hairs but no real 

 bristles ; second segment yellowish red, pollinose, with 

 erect hairs. Forceps yellow except at tip; the free 

 part somewhat blade-like or sickle-shaped, curving 

 rather uniformly forward, with a tooth on the front 

 side at the apex; viewed from behind, they diverge 

 very little ; accessory plate pale yellow, long and slen- 

 der; claspers brown, rather slender, the hind ones 

 longer and more hooked; penis long, slender and 

 simple; basal joint yellow, small; distal one slightly 

 darker, long and rather flat, curved forward toward 

 tip and ending in a small, blunt tube at right angles 

 to the body of the segment. There is a single small, 

 earlike lobe on each side near the base of the tube, no 

 other processes visible. 



Legs black, the middle femur underneath on the 

 hind side with only about three blunt spines near the 

 apex. Middle tibia with two bristles on outer front 

 side; hind tibia without villosity. 



Wings distinctly brownish, paler along the hind 

 margin; no costal spines; third and fifth segments of 

 costa about equal; first and third veins hairy. 



Length 7 mm. 



One male collected by H. S. Parish at Bartica, 

 British Guiana, May 2, 1901. 



Holotype. — Male, in Professor Hine's collec- 

 tion. 



