120 ACADEMY OP NATURAL SCIENCES 



fcerior processes, each one longer than its respective joint; palpi 

 whitish : thorax slightly convex, deflected at the anterior angles ; 

 basal edge sinuate, minutely dentate, and with three small salient 

 angles over the scutel ; posterior lateral angles acute : scutel dis- 

 tinctly cordate : elytra rather pale chestnut-brown, with slightly 

 impressed punctured striaB : beneath rufous : pectus each side black. 

 Length one-fourth of an inch. [187] 



ANOBIUM Fab. 



A. CARINATUM. — Brown ; thorax carinate behind; elytra 

 punctate striate. 



Inhabits Mississippi. 



A. j^ertinax Melsheimer's Catalogue. 



Body brown : eyes black : antennas and palpi rufous : clypeus, 

 labrum, and base of the mandibles, piceous ; the latter tipped 

 with black: thorax declivous towards each margin; carinate be- 

 hind, with an impressed line terminating at the carina ; carina 

 dilated and bifid near the middle of the back ; an oblique obso- 

 lete abbreviated line near the posterior angles ; lateral edge 

 about half as long as the central diameter : scutel rounded at 

 tip : elytra profoundly striate; striae obtuse, punctured : punctures 

 transverse, dense : beneath blackish-brown. 



Length more than one-fourth of an inch. 



Found on the Missisippi above the mouth of the Ohio. This 

 species approaches A. jyertinax Fab., but (as Mr. J. F. Melshei- 

 mer, in a letter to me, remarks) it is longer, the thorax differently 

 formed, and always destitute of the fulvous spots sometimes so re- 

 markable in the European specimens. 



ENOPLIUM Latr. 



1. E. MARGINATUM. [Ante 1, 89.] [ 188] 



2. E. THORACicuM. [Ante 1, 90.] 



3. E. 4-puNCTATUM. [Ante 1, 90.] [189] 



TRICHODES Fab. 

 Clerus Latr. Leach. 

 1. T. ORNATUS. — Brass3'-blaekish ; elytra with a humeral spot 

 and two bands pale yellow. 

 Inhabits Arkansa. 



[Vol. III. 



