504 TRANSACTIONS OF THE 



Head deep greenish; antennae fuscous ; base and palpi rufous ; 

 thorax broadest before the middle, contracted behind, lateral 

 edge excurved at base, base punctured ; elytra blackish, striae 

 punctured, interstitial lines convex, third one with two distant 

 punctures, a longitudinal, submarginal, rufous spot originating on 

 the humerus, and an oblique, almost common, elongated one be- 

 hind the middle ; feet rufous. 



[This species is the same as the European one, which by the 

 latest authorities is considered as B. ustidatum (Linn.;) which is 

 also described as B. rupestre Illiger and Dejean, and considered 

 by Erichson as Carahus Andrese Fabr. — Lec] [90] 



TRECHUS Clairville. 

 Anterior tibiae emarginate ; anterior and intermediate tarsi of 

 the male dilated ; elytra and wings entire ; palpi filiform, the 

 last joint of the exterior ones as long or longer than the prece- 

 ding joint, not narrowed at base, but forming with that joint a 

 fusiform mass. 



1. T. CONJUNCTUS. — Head piceous-black ; thorax rufous, im- 

 punctured ; elytra dusky ; feet testaceous. 



Length three-twentieths of an inch. 



Body impunctured, glabrous ; head black or deep piceous ; an- 

 tennae brown ; base and palpi testaceous ; labrum piceous ; man- 

 dibles rufous at base ; thorax rufous, rounded behind, dorsal line 

 not deeply impressed, basal lines slightly excavated, base im- 

 punctured ; elytra blackish, margin and suture piceous obscure? 

 striae impunctured, interstitial lines depressed ; pectus rufous ; 

 sternum black ; feet testaceous ; postpectus black ; abdomen 

 black. 



Very common. The disk of the thorax is sometimes dusky or 

 blackish. 



[Belongs to Stenolophus, and was subsequently described as 

 Acupalpus misellus Dej.; A. rotund icoUis and %Miri4; Hald. — 

 Leg.] 



2. T. PARTiARius. — Head black ; thorax rufous, rounded be- 

 hind, punctured at base; elytra pale, disk dusky; feet testa- 

 ceous. 



Length less than three-twentieths of an inch. 



[Vol. II 



