NORTH AMERICAN COLEOPTERA. 301 



Several species have reddish brown elytra and very closely resem- 

 ble this, but here the thorax has never a paler border and the iiieta- 

 sternal area is prolonged by an oblique line. 



This species is the one which has been known by us as nigricolle 

 Say, or flavlpes Fab. In Europe the species and the name have 

 been equally misunderstood by all but the more recent authors, as 

 will be apparent to any one who will seek for a good description of 

 the species under the name adopted. 



Occurs in our fauna from Canada and the New England States to 

 North Carolina and westward to Illinois. It is widely distributed 

 in Europe, also in the north of Africa and western Asia. 



C inelaiioceplialus Linn. — Oval, slightly oblong, moderately convex, 

 piceous, shining; elytra rufescent, or pale castaneons, with a triangular piceous 

 space extending from the base two-thirds or more to apex, and a short humeral 

 stripe piceous. Antennae, and palpi pale testaceous. Head indistinctly, not 

 closely punctate. Thorax entirely piceous, sides regularly arcuate from base to 

 apex, basal marginal line and ante-basal impressions wanting, disc rather finely, 

 not closely punctate. Elytra ten-striate, the tenth replaced by indistinct punc- 

 tures, striae distinctly impressed to apex and punctate, intervals indistinctly 

 punctulate; epipleurae piceous. Body beneath opaque black, metasternal area 

 shining, sparsely punctate, obliquely extended to the outer front angle by a 

 line. Prosternum distinctly carinate, mesosternal elevation narrow, but with 

 a distinctly punctate area. Legs pale rufous. Length .08 — .10 inch. ; 2 — 2.5 mm. 



This species varies in the extent of the piceous triangle of the 

 elytra, which is sometimes quite small and well defined, or covering 

 the greater part of the disc of the elytra. 



Smaller specimens resemble pyginceus, but are more convex and 

 with a more distinctly punctate surface. In the present species the 

 palpi are entirely pale, while in pygmceiis the terminal joint is piceous. 



Occurs from Canada to Pennsylvania and westward to Missouri. 

 In Europe it is widely distributed, and extends to northern Africa 

 and the north of Asia. 



^' pygniaPtis 111 ig.— Oval, slightly oblong, piceous black, elytra piceo- 

 rufous, or paler, with a large triangular basal space of variable extent and a 

 humeral stripe piceous. Antennae piceo-testaceous, club darker, palpi pale testa- 

 ceous, the last joint piceous. Head distinctly, not closely punctate. Thorax 

 entirely piceous, the sides regularly arcuate from base to apex, basal marginal 

 line and ante-basal impressions wanting, sometimes a small ante-scutellar im- 

 pression, surface moderately closely, but not deeply punctate. Elytra striate, 

 the tenth very indistinct, strife punctate and deeper at base, intervals fiat, sparsely 

 indistinctly punctate, much more finely than the thorax; epipleurse pale. Body 

 beneath piceous, opaque ; metasternal area shining, punctate, continued by a well 

 elevated line to the anterior angles. Prosternum distinctly carinate, mesosternal 



