Mr. A. Murray's Monograph of the genus Catops. 395 



45. C. opacus, Say. 



Catops opacus, Say, Journ. Acad. Nat. Sc. Philad. v. 184; Leconte, Syn. 

 Silpli. Amer. in Proceedings of Acad. Philad. (1853) 280. 



" Ater, punctulatus, subtiliter pubescens ; thorace semi- Fig. 42. 



elliptico, basi late rotundato ; elytris obsolete striatis ; 



tibiis calcaribus magnis armatis. 

 " Long. 2 lin. 



" New York and Ohio : rare. 



"The male has three joints of the anterior tarsi 

 strongly dilated ; the middle tarsi are not dilated. The 

 sutural stria of the elytra is deeper than the others *.''' 



46. C. terminans, Leconte. 



Catops terminans, Lee, Agassiz, Lake Superior, 218 ; Lee. Synops. Silph. 

 N. Amer. Proc. Acad. Philad. vi. 1853, 282. 



" Oblongo-ovalis minus convexus, nigro-piceus, subtiJiter Fig. 43. 

 pubescens ; elytris distinctius rugose punctulatis, stria 

 suturali profunda ; thorace breviore^ antrorsum valde 

 angustato, angulis posticis vix productis ; pedibus 

 fuscis ; antennis apice flavis, basi testaceis. 

 " Long. 1 lin. 



" Very abundant at the mouth of the Pic river^ on the north 

 side of Lake Superior, under dried animal matter. This species 

 is broader and less convex than C. consobrinus, and is easily 

 known by the more distinct punctuation, and by the absence of 

 the transverse lines. The thorax is densely and finely punctulate ; 

 it is about twice as wide as its length, strongly narrowed in 

 front, rounded on the sides, especially anteriorly, slightly emar- 

 ginate at apex, truncate at base, and very slightly sinuate at the 

 posterior angles, which are scarcely perceptibly acute. The 

 anterior tarsi of the male, and the first joint of the middle tarsi, 

 are dilated t .^^ 



47. C. monilis, mihi. 



Oblongo-ovalis, fuscus ; antennis capite et thorace Fig. 44. 

 longioribus, articulo octavo minutissimo, articulis 

 ante sextum non gradatim a'escentibus magnitudinej 

 fuscis, articulo ultimo et articulis ad basin ferru- 

 gineis ; thorace leviter, elytris fortiter transverso- 

 strigosis, his stria suturali impressis; pedibus 

 spinosis. 



Long. \^ lin., lat. f lin. 



Oblong-oval, nearly of the same size and form as C. alpinus, 



* Leconte in loc. cit. t Leconte in loc. cit. 



