32 HTMENOPTEEA. 



round, with a tubercle in the centre ; central much longer than broad, deep, projecting 

 behind, bifurcating round a tubercle in front; face covered with long white hair; 

 clypeus scarcely transverse. The transverse radial and second recurrent nervures are 

 interstitial ; the third cubital cellule is a little longer than the second, which has an 

 obscure horny point ; the transverse median is received in the basal fourth of the cellule. 

 There are spurious veins of the usual form in the radial, cubital, and discoidal 

 cellules ; the appendicular cellule in the posterior wings is large. The tarsi are shorter 

 than the tibiae, the claws bifid. 



A specimen from Bugaba has the transverse radial and second recurrent nervure not 

 interstitial, they being received at a little distance from the transverse cubital nervures ; 

 but it does not differ otherwise. 



4. Blennocampa leucosoma. 



Nigra, ore. genibus, tarsis tibiisque anticis sordide albis; pronoto, mesonoto tegulisque rufis; alia fusco- 



hyalinis. 

 Long. 8 millim. 



Eab. Panama, Volcan de Chiriqui 2000 to 3000 feet {Champion). 



The antennae are somewhat longer than he head and thorax, covered with a micro- 

 scopic pile ; third joint much longer than the fourth, four apical joints abruptly shorter 

 than the others, scarcely attenuated. Sutures on the vertex deep ; lower ocellus sur- 

 rounded by a deep furrow, frontal area proper not indicated ; frontal fovea very large 

 and united by a broad furrow ; the central wider than long, projecting in the middle 

 above. Clypeus truncated at the apex ; palpi blackish fuscous. Mandibles black ; 

 labrum and clypeus white ; the second radial cellule is longer than the first ; the trans- 

 verse radial nervure is received in front of the middle of the cellule, the second recurrent 

 almost interstitial ; third cubital cellule one fourth longer than the second, which is 

 double the length of the first on the upperside ; the transverse median is received in 

 front of the middle of the cellule. In the hind wings the appendicular cellule is 

 short. Claws bifid. 



Apart from the differences in the neuration and coloration, B. leucosoma differs from 

 B. intermedia in the wings being lighter-coloured, the antenna? shorter and with a shorter 

 pile, the four apical joints more abruptly shorter, the metatarsus as long as the four 

 succeeding joints, while in B. intermedia they are distinctly shorter than it. 



Obs. Norton (I. c. p. 246) describes a species from Mexico as a variety of B. inhabilis 

 (a species described from Massachusetts), which agrees pretty closely in coloration with 

 B. leucosoma, and is possibly identical with it. 



5. Blennocampa subcserulea. (Tab. II. fig. 10 $ .) 



Subeserulea, nitida, antennis pilosis ; alis nigro-violaceis, cellula cubitali 3 a longiore quam 2 a . 

 Long. 7| millim. 



Hab. Guatemala, San Geronimo (Champion) ; Panama, Volcan de Chiriqui 2500 to 

 4000 feet, Bugaba (Champion). 



