OP NATURAL HISTORY. 703 



2. A. MELLEUS. — Honey-yellow : antennae white, blackish at 

 base. 



Inhabits Indiana. 



? Body honey-yellow ; head with a large black spot above the 

 antennae; beneath the antennae yellowish ; antennse white ; basal 

 third above black ; occiput with a dusky spot ; scutel yellow, the 

 sutures around it black : wings with a blackish tip ; tergum, 

 sutures somewhat dusky ; tibiae and trochanters yellowish. 



Length two-fifths of an inch. 



BASSUS Fabr. 



1. B. SANCTUS. — Black ; metathorax, abdomen and posterior 

 feet sanguineous. 



Inhabits Indiana. 



9 Body black : palpi tinged with piceous ; thorax, pleura, pec- 

 tus, and two anterior pairs of feet immaculate; [250] wings black- 

 ish-violaceous, with a hyaline literation in the middle ; nervures 

 black : separating uervure between the first cubital and first dis- 

 coidal cellules widely interrupted ; second cellule triangular ; 

 cubital cellule rather large ; metathorax and abdomen bright san- 

 guineous ; posterior coxae and thighs bright sanguineous, the in- 

 tervening trochanter black : posterior tibia; dull sanguineous, 

 their tips dusky, their tarsi blackish ; oviduct nearly as long as 

 the body, ferruginous, with black valves. 



Length over three-tenths of an inch. 



At first view resembles Bracon initiator F. 



2. B. LIMITARIS. — Black ; feet honey-yellow. 



Inhabits Missouri and Indiana. 



Body black ; palpi white ; thorax longitudinally indented be- 

 hind the middle ; wings nearly hyaline, at base yellowish ; ner- 

 vures fuscous ; stigma large ; first cubital cellule complete ; second 

 rather large, quadrangular; radial cellule also rather large; feet 

 honey-yellow; posterior pair of tibiae whitish, their tips and an- 

 nulus near the base black ; posterior pair of tarsi black. 



Lenffth seven-twentieths of an inch. 



Var. a. Maxillary palpi, first joint black. 

 9 Oviduct hairy, decurved, some^^hat robust. 

 1835.] 



