October, 1844.] m 



Colydium undulatum, Melsh. Catal. 



Body elongate : head finely and densely granulated, above blackish, with the 

 apex dull rufous; finely cinereous pubescent: antenna; rufous, with the clava 

 distinctly 2-jointed : thorax brown, tinged with rufous, pubescent like the head ; 

 front margin elevated and somewhat advanced in the middle ; anterior angles 

 very prominent ; lateral edges rectilinear, denticulated, abruptly contracted near 

 the posterior angles ; disk longitudinally and widely impressed : elytra blackish, 

 broadly dull rufous at base, varied with small ashy spots; a dull rufous fascia, 

 maculate with ashy, before the apex ; four longitudinal raised, finely granulated 

 lines, the interstices each with a double series of punctures : feet and beneath 

 dull rufous, sprinkled with numerous punctiform ashy scales. This species, in 

 the form of the body, bears a stronger resemblance to a Colydium than to B. 

 crenata, Hbst., the type of the genus Bitoma. 



BoTiimDERES, Dejean's Catalogue. 



B. exaratus. Dark ferruginous ; thorax and elytra longitudinally ribbed. — 

 2 1. long. Pennsylvania. 



Ferruginous: head very minutely granulated : antenna?: thorax norrowed 

 posteriorly ; lateral edges elevated, faintly rounded ; angles acute, posterior ones 

 deflexed ; an entire, fine, submargina) costa, similar, but shorter, or dislocated 

 ones on the disk : scutel minute, orbiculate : elytra lighter tinted than the tho- 

 rax, each with four longitudinal narrow acute lines ; suture and lateral edges 

 raised : feet and beneath rust-red. My collection contains only a single speci- 

 men of this species, which is closely allied to B.geminatus, Haldeman, Ditoma 

 paradoxa, of some, but is smaller and comparatively much narrower than that 

 species. 



Mohotoma, Herbst. 



M. fulvipes. Blackish ; feet and antenna? fulvous. — | 1. long. Pennsyl- 

 vania. 



Latridius rujipes, Melsh. Catal. 



7iiger, " 



Black, opaque : head sparsely hispid, finely shagreened, with two longitudinal 

 impressions between and near the eyes : labrum in front piceous : palpi and 

 antenna? dull fulvous : thorax finely shagreened, hispid, oblong-quadrate, 

 slightly narrowed at apex, with the posterior angles rounded, the anterior o«es 

 small, acute ; two somewhat obsolete longitudinal impressions on the middle 

 near the base : elytra dull reddish-brown, slightly hirsute, finely striate-punctate, 

 the interstices fine, convex : beneath black, with the tip of the venter obsoletely 

 testaceous : feet dull fulvous. 



Stnchita, Hellwig. 



S.fuligi?iosa. Ferruginous above, dull rufous beneath. — 1£ 1. long. Penn- 

 sylvania. 



Lyctus fuliginosus, Melsh. Catal. 



Ferruginous, much finely and yellowish granulated: eyes black: antennae 

 and palpi rufo-testaceous, the former with the capitulum somewhat depressed : 

 thorax with the lateral margins narrowly depressed, and finely ciliate at the 



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