110 [June, 



short, ferrujinous, somewhat rigid, sericeous hairs : head blackish with an ob- 

 scure rufous frontal spot; antennae pale rufous, terminal joint dark brown; 

 mouth rufous ; thorax nearly as dark as the head ; elytra paler than the thorax ; 

 beneath piceous black; feet pale rufous.' 



4. A. dichrous, ovalis minus convexus, niger, minus dense supra longius 

 pubescens, thorace parce punctulato, utrinque ad basin impresso, elytris, antennis 

 pedibusque laete rufis. Long. *16 



One male, New Mexico, Mr. Fendler. Differs from all the others known to 

 me by the coarser and longer dark greyish hair of the upper surface ; the last 

 joint of the antennae is as long as the others united, and is slightly sinuate inter- 

 nally towards the apex. The thorax is more than twice as wide as long, not 

 very convex, shining and finely but not densely punctulate ; the base is broadly 

 bisinuate and impressed, the posterior angles are rounded. 



A. cylindricus Kirby, Fauna Bor. Am. 1 13, tab. 7, fig. 3, is unknown to 

 me ; it was found near the Rocky Mountains, and is said to have the appearance 

 of a Cryptophagus. 



Trogoderma Latr. 



1. T. o r n a t u m, subovale, nigrum, subtus griseo-pubescens, thorace con- 

 vexo, confertim subtiliter punctulato, pilis cinereis fulvisque variegato, elytris 

 subtiliter punctulatis, lineis undulatis ferru^ineis, pilisque cinereis et fulvis sub- 

 fasciatis, antennis tibiis tarsisque rufo-piceis vel fuscis. Long. '14 *17. 



Megatoma ornata Say, Journ. Acad. Nat. Sc. 5, 185. 



One specimen from Texas, Mr. Lindheimer and others from New York. This 

 species has precisely the form of the next, but is readily distinguished by the fine 

 dense punctures of the thorax, and the finer punctures of the elytra. The pubes- 

 cence of the thorax forms two yellow transverse lines, one near the tip, the 

 other at the middle, and some basal white spots : that of the elytra, forms three 

 narrow dentated lines and a basal, irregular spot; the anterior and medial lines 

 are somewhat connected towards the suture. The club of the antennae is elon- 

 gated, composed of five points not very loosely articulated in the female, and is 

 broad and serrate in the male. 



2. T. inclusum, subovale, nigrum, thorace convexo, vix punctulato, 

 pilis sparsis cinereis variegato, elytris minus subtiliter punctulatis fascia lata sub- 

 basali guttam utrinque nigram includente, lineisqueduabusad suturam connexis 

 cinereis ornatis, antennis tarsisque rufo-piceis vel fuscis, subtus subtiliter nigro- 

 pubescens. Long. "17. 



New York : I once found a considerable number in a trunk full of duplicate 

 insects: the antennae are as in the female of the last, in all my specimens. 



3. T. pallipes, subovale, nigrum, subtus griseo-pubescens, thorace convexo, 

 parce punctulato, pilis cinereis adsperso, elytris minus subtiliter punctulatis, 

 lineis undulatis furrugineis, pilisque cinereis et fulvis subfasciatis, antennis 

 pedibusque testaceis,clava, femoribusque infuscatis. Long. -14. 



Ziegler, Proc. Acad. Nat. Sc. 2,269. 



One female, Georgia. This species is very closely allied to T. ornatum, but 

 the less dense punctures of the thorox will enable it to be separated. The 

 specimen described by Mr. Zeigler was evidently only recently transformed, 

 and therefore had not yet attained its full color. The club of the antennae is as 

 in T. ornatum, whence it may be concluded, that the male will be found to have 

 pectinate antennae. 



4. T. tarsale, elongato-ovale, postice paulo angustius, nigrum, thorace 

 vix punctulato, pilis cinereis adsperso, elytris punctulatis, lineis ferrugineis undu- 

 latis variegatis, pilisque cinereis subfasciatis, antennis pedibusque piceo-rufis 

 femoribus infuscatis. Long. -10. 



Melsheimer, Proc. Acad. Nat. Sc. 2, 116. 



Middle States, not rare ; frequently found in Zoological collections. This 

 species is smaller and narrower than the preceding, and is slightly ovate in form, 



