SOME NORTH AMERICAN INSECTS- 161 



Scutel orbicular, disk indented : elytra blue on the disc ; submargin 

 and subsuture green, passing into golden towards the margin and suture? 

 which are brilliant coppery or red golden; basal margin green golden; 

 surface with seven or eight striae of dilated profound punctures ; the 

 interstitial lines with each a single series of smaller punctures ; no ele- 

 vated lines ; tip truncated^ with a slight projection at the inner angle : 

 beneath green-golden, with a slight coppery tinge : tibise, coppery. — 

 Length of the elytra two-fifths of an inch. 



It is more brilliant than either the impedita or salisburiensis. From 

 the former it is distinguished by being destitute of elevated lines on the 

 elytra, and from both by its regular series of large profound punctures. 



14. B. mV^rf^cor^^^■*, Nob. This has been mistaken by an European 

 entomologist for the agrilus ruftcollis, F. ; but it is very different in 

 form, which is much more like that of a true Buprestis ; and the colour 

 is also different, though that of the head and thorax probably deceived 

 him, being coppery in each, though much more obscure in our insect. 

 I have taken a variety in this state differing greatly in colour, so much 

 so, that it might lead to error unless actually compared. 



The colour is bright green ; thorax on the disc tinged with coppery, 

 with a common green triangle extending from the humerus to beyond 

 the middle ; beneath the green colour is less brilliant. Another variety 

 has the cupreous colour of the thorax confined to the lateral margin, 

 the remainder being of the colour of the elytra. 



I may add to the specific description that the head has an orbicular 

 indentation between the eyes, and a slightly indented line on the ver- 

 tex ; the scutel is altogether destitute of a transverse elevated line ; it is 

 convex, and widely triangular ; the elytra are minutely serrate at tip. 



This species has characters in common with buprestis and agrilus, 

 and it may perhaps belong to the latter. 



AGRILUS, Megerle. 



1. A. ruficollis, F. We may add to the Fabrician characters that 

 the head is profoundly indented on the vertex; the indented line is 

 continued down the front ; the elytra are scabrous, and at tip, as well 

 as that of the abdomen, serrate. 



Var. ^. Thorax obscure green. 



