North American Hymenojptera. 225 



r 



cubital very minute, the petiole being elongated : scutel 

 dull honey-yellow : tergum densely punctured ; two 

 basal segments with an elevated, abbreviated line ; that 

 of the second segment parted into several at base, that of 

 the first segment dilated into a groove at base ; basal 

 segment with a tubercle each side and an elevated line 

 on the lateral margin, continued on the second segment : 

 jpleura and ^pectus honey-yellow varied with white : 

 coxcE and trochanters white ; posterior pair of coxse 



fi 



posterior pair 



of thighs at tip, their tibia from the middle to the tip 

 and their tarsi black : venter ^ in the middle, white. 



Length nearly three tenths of an inch. 



A small frontal escutcheon and sessile abdomen led 

 me to place this Insect here, although the palpi are not 

 dilated and the winoj cellules differ. 



Agathis, Latr. 

 1. A. polita. Black ; antennae, tibiae and tarsi yel- 



lowish. 



Inhabits Indiana. 



$ 



front 



head yellow: 



black : antenn<z honey-yellow : mandibles honey-yellow, 

 black at base and tip : posterior orbits and posterior 

 margin of the vertex, yellow : occiput obscure honey- 



orax 



date spot on the scutel, abbreviated, transverse line be- 

 neath it, and posterior mar^n of the metathorax, yellow: 

 wings blackish-brown ; second cubital cellule quadran- 

 gular : tergum with a yellow band on the posterior mar- 

 gin of the first and second segments, slightly Interrupted 



VOL. I. PART III. 30 



