NO. I NEW PIPUNCULID.E (DIPTERA) FROM PANAMA — MALLOCH 3 



rupted centrally; fifth segment half as long again as fourth; basal 

 fringe black, strong but not numerous; only the fifth segment with 

 very weak dorsal hairs, the others bare; 

 hypopygium shorter than fifth segment 

 viewed from above, black, shining, slightly 

 brown dusted, longest on right side, depres- 

 sion on left, shallow, a slight apical tubercu- 

 late production on right side, ventral pro- 

 cesses not protruding, yellow. Legs yellow, 

 only coxae, except apices of fore pair and 

 terminal joints of tarsi brown ; posterior 

 femora glossy ventrally, all femora with 

 distinct but short ventral thorns ; all tibiae 

 with two dorsal and two or three anterior 

 and posterior longitudinal rows of short 

 black bristles ; last tarsal joint on all legs 

 with several long black apical hairs ; claws 

 yellow, brown at apices. Wings slightly 

 infuscated, stigma brown, reaching to end 

 of auxiliary vein ; second costal division one 

 and one-half times as long as third, both 

 together slightly longer than fourth ; small 

 cross vein at just beyond end of auxiliary 

 vein and at three-sevenths from base of 

 discal cell ; outer cross vein slightly bent, as 

 far as its own length from end of fifth vein ; last portion of sixth vein 

 one-third as long as last portion of fifth. Halteres yellow. Length, 

 2^2 mm. 



Locality. — One male Taboga Island, Panama, Feb. 22, 1912 (Aug- 

 ust Busck). 



Type.— Cat. No. 15 120, U. S. Nat. Mus. 



Recognizable from any described American species by the color and 

 shape of the antenna;, as well as the color of the legs and the peculiar 

 hypopygium. 



PIPUNCULUS BUSCKI, new species 



Male. — Eyes confluent for a considerably longer distance than the 

 length of f rons ; frons hardly silvered, only slightly so in center; 

 face grayish-brown, as broad below antennae as frons at above an- 

 tennas, then narrowing slightly and continuing almost parallel-sided 

 to mouth margin; occiput silvered below, opaque and very narrow 

 above ; antennae black, second joint with 2-3 distinct hairs on under 



P. ACUTICORNIS, c?. 



