SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 60 



surface, third rounded at apex and not much larger than second 

 joint, arista black, swollen at base, not reaching as high as upper 

 angle of frons ; palpi pale. Mesonotum opaque brown ; humeri 

 brown ; pleurae slightly shining especially on lower portion ; scutellum 

 sub-opaque, bare. Abdomen opaque black-brown, only the posterior 

 margins of segments narrowdy paler, and low down on lateral mar- 

 gins each segment broadly pale brown ; ventral surface opaque black- 

 brown ; basal fringe short, sparse, black ; hypopy- 

 gium brown, viewed from above as long as last 

 segment of abdomen, a distinct depression on 

 right side, ventral processes slightly shining and 

 with a group of short pale hairs on the center. 

 Legs dull brown, apices of coxae, basis of tibiae and 

 middle three joints of tarsi paler; femoral bristles 

 very weak. Wings distinctly fuscous except at 

 base and along hind margin ; stigma darker 

 than general body of wing ; veins dark brown ; 

 second costal division one and one-half times as 

 long as third ; second and third together longer 

 than fourth ; small cross vein slightly beyond 

 end of auxiliary vein and at middle of discal 

 cell ; outer cross vein at nearly its own length 

 from end of fifth vein ; last portion of sixth 

 vein slightly shorter than last portion of fifth. 

 Halteres black-brown. Length, 1^2 mm. 



Locality. — One male. Taboga Island, Panama, 

 Feb. 20, 1912 (August Busck). 

 Type.— Cat. No. 15 121, U. S. Nat. Mus. 



The exceptionally dark color of the wings and legs of this species 

 separates it from any described American species. 



P. buscki, J 1 . 



