78 Descriptions of new species of Hymenopttra. 



body; thorax black; icings blackish, second cubital cel- 

 lule longitudinal, quadrangular, acute at base, ncrvure 

 connecting with the carpal spot placed obviously before 

 the middle of the cellule; feet blackish; abdomen san- 

 guineous; oviduct shorter than the body, blackish; mc- 

 tathorax simple pale reddish. 



Length more than three-twentieths of an inch. 



2. B. honestor. Yellowish-rufous; wings blackish, with 

 a whitish band and tip. 



Inhab. Indiana. 



Body rufous, slightly tinged with yellow; antennae 

 rather longer than the bodv; t borax somewhat trilobate, 

 the posterior segment being canaliculate; wings dusky, 

 with black nervurcs and rather large carpal spot; a nar- 

 row, transverse, whitish band beyond the middle, and 

 whitish tip; posterior tibiae dusky, whitish at base and 

 at the terminal incisure; abdomen clovatc, almost pedun- 

 culated; oviduct longer than the abdomen. 



Length one-fifth of an inch. 



Second cubital cellule elongated. 



3. B. truncator. Pale honey-yellow: vertex with a 

 black spot. 



Inhab. Indiana. 



Body pale honey -yellow, polished, impuncturcd; an- 

 tennas fuscous, honey-yellow at base; stemmata in a 

 black spot; palpi whitish toward the tip; mctathorax 

 slightly punctured: abdomen much compressed, truncate. 



Length nearly one-fourth of an inch. 



PERILAMPUS. Lath. 



1. P. triangularis. Green and blue; tar^i yellcw : 

 wings dusky at tip. 



