82 Descriptions of new species of Hymenoptcra. 



CHRYSIS. Linn. Latr. 



1. C. pacified. Green; anal segment mutic; tarsi fus- 

 cous. 



Inhab. Indiana. 



Body green with a slight bluish tinge, with short hairs; 

 antennse, five or six terminal joints fuscous; wings hya- 

 line, a little brownish on the costal margin beyond the 

 stigma; tergum more particularly tinged with bluish; 

 anal segment rounded, subtruncate, unarmed; tarsi fus- 

 cous, basal joint above green. 



Length about three-tenths of an inch. 



2. C. carinala. Bluish; abdomen subtridentate. 

 Inhab. Indiana. 



Body greenish-blue varied with purplish; front, from 

 the antennae to the middle, with numerous whitish hairs; 

 antennse fuscous, green at base; metathorax lateral tu- 

 bercles acute; middle termination subacute; tergum, an- 

 al segment carinate, the carina extending beyond the 

 edge into an acute tooth; lateral angles acute; tarsi fus- 

 cous. 



Length three-tenths of an inch. 



IIEDYCRIUM. Latr. 



II. sinuosicm. Reddish-coppery; wings fuliginous at 

 tip. 



Inhab. Indiana. 



Body reddish-coppery, polished, punctured; front 

 concave, greenish; antennse fuscous, green at base; me- 

 tathorax acute at the posterior angles; wings beyond 

 the middle fuliginous; tergum blue-purple; terminal 

 segment hardly as long as the penultimate, with a sinus 

 at tip; beneath green; tarsi fuscous. 



Length about one-fifth of an inch. 



