

*i 



North American Hymenoptera. 245 



4 



Body black: wings with fuscous nervures, dull yel- 

 lowish towards the base : ahdomen nearly sessile, minute- 

 ly and densely punctured ; first segment with two longi- 

 tudinal, elevated lines; 2d, 3d and 4th each with two 

 very obvious, impressed lines, originating at the base and 

 divaricating towards the posterior angles : feet honey- 

 yellow : posterior jpair, thighs at tip, tibiae at tip and 

 annulus near the base, and posterior halves of the tarsal 



joints, black. 



Length over two fifths of an inch. 



Has considerable resemblance to Ichneumon inquisi- 

 tor, Nob., but the impressed lines of the tergum are very 

 oblique, and the wings are destitute of the small second 



cubital cellule. 



8. A. emarginatus , Nob. Contrib. Macl. Lyceum, p. 

 76. This species is very remarkable by the prominence 

 of the head in front of the insertion of the antennae, which 

 hence appear to be situated in a deep foveola ; this char- 

 acter, together with the very short, robust feet, proves a 

 close relation to Alomya, to w^hich in fact I would refer 

 the species, but that there is no appearance of a second 

 cubital cellule ; the antennae have thirty-six joints. 



Peltastes, lllig. 



1. P. pollinctorius. Black; two thoracic spots, 

 atel, and bands of the tergum yellow; tibiae black. 



Inhabits Pennsylvania and Indiana. 



9 Body black, densely and closely punctured : head 



: thorax with a yellow line before the wings : 



scutel quadrate ; lateral edge elevated ; posterior margin, 

 including the prominent spines, yellow: iviiigs with a 

 tint of ferrudnous ; nervures fuscous ; stigma paler in the 



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