SEKICOCERA. 49 



9. Sericocera rufiventris. 



Mgra, parva, pilosa, abdomine flavo-testaceo, alis fumatis. $ . 

 Long. 5 m illim , 



Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 



The antennae are as long as the abdomen, filiform, of nearly equal thickness through- 

 out, densely pilose. Head with the front very wide and broad, projecting, but not 

 sharply; frontal sutures deep, broad, shining; frontal area not raised from the sur- 

 rounding part nor depressed in the centre. Antennal fovea large, oval, of moderate 

 depth ; clypeus truncated ; face covered with long scattered white hair. The third 

 cellule is a very little longer than the second on the lower side, and considerably longer 

 on upper, where it is dilated ; recurrent nervures received in the basal fourth of the 

 cubital cellules ; transverse median nervure received a little before the middle of the 

 cellule ; blotch large, broad, extending across the whole segment. Sheath of saw 

 black, covered with a short white down. The metatarsus is shorter than the succeeding 

 joints together. 



10. Sericocera cserulea. 



Caeralea, alis fumatis, pedibus nigris, pilosis. $ • 

 Long. 5-6 millim. 



Hab. Panama, Volcan de Chiriqui 3000 to 4000 feet (Champion). 



The antenna? are slender, longer than the abdomen, densely covered with a longish 

 black pubescence. The front is broad, somewhat triangular above the antennae, and 

 with a small fovea at the apex ; the face is covered with longish hairs. The first trans- 

 verse cubital nervure is distinct ; .the second cellule is not much longer than the lower 

 side of the third, which is largely produced on the upperside, where it is as long as 

 the first and second cellules together ; the second recurrent nervure is received not far 

 from the second transverse cubital ; the transverse median before the middle of the 

 cellule. The abdomen is not much longer than the head and thorax, and becomes 

 gradually narrowed towards the apex. The blotch is very large, and extends Almost 

 right across the segment. 



11. Sericocera truncata. 



Nigra, nitida, tibiis anticis sordide testaceis, alis fumatis. 

 Long, fere 6 millim. 



Hab. Guatemala, Duefias $ , San Geronimo 6 (Champion). 



The antennae are as long as the abdomen, shortly and densely pilose, and tapering 

 towards the apex ; the sutures on the vertex are distinct, deep ; the vertex behind the 

 ocelli separated from the latter by a deep furrow ; and a narrower and less deep furrow 

 runs from the upper ocelli to the eyes. Frontal area subdistinct, rounded at the lower 



biol. cente.-amee., Hymenopt., September 1883. hh 



