Royal Physical Society. 153 



" Three specimens, Georgia. Easily distinguished by its sub- 

 elliptical and less convex form. I cannot discover any punc- 

 tures on the elytra ; if they exist they are concealed by the dense 

 pubescence, which is however scarcely sericeous. The male has 

 three joints of the anterior tarsi dilated; the middle tarsi are 

 simple in both sexes*." 



The mesosternal keel is less elevated in this and the next than 

 in the other species. 



61. C. parasitus, Leconte* 



Catops parasitus, Lee. Syn. Silph. N. Amer. Proc. Acad. Philad. vi. 1853, 

 p. 282. 



" Breviter ovatus, piceo-rufus, sericeus ; thorace disco Fig. 54. 

 obscuriore, brevi, antrorsum valde angustato, angulis 

 posticis non productis ; elytris transversim strigosis, 

 stria suturali profunda ; antennis basi apiceque flavis. 



" Long. J lin. 



" New York, in ants' nests, with Hceterius brunnipennis, March 

 and April. This species is much broader and more suddenly 

 narrowed posteriorly than the others. The thorax is fully twice 

 as wide as its length, punctulate, not strigose, strongly narrowed 

 in front, broadly rounded on the sides, truncate at base, with 

 the posterior angles simply rectangular and not produced. The 

 elytra are punctulate and distinctly striate transversely. The 

 antennse are as long as the head and thorax, very slightly incras- 

 sated, rufo-piceous, with the first four joints and the apical one 

 yellowish ; the seventh joint is more than twice the length of 

 the sixth ; the eighth joint is much shorter, but scarcely thinner 

 than the following ones. The anterior tarsi of the male are 

 broadly dilated ; the first joint of the middle tarsi is less dilated 

 than in C. terminansf." 



The mesosternal keel is finer and less raised in this and 

 C. oblitus than in the other species. 



62. C. a-scutellaris, mihi. 



Oblongo-ovatus, fusco-sericeus ; antennis vix ad apicem Fig- 55. 

 incrassatis, fuscis, basi apiceque ferrugineis ; thorace <s=* 

 elytrisque leviter transversim strigosis, his stria 

 suturali impressis ; scutello inviso. 



Long. 7 q lin. 



Fuscous-brown. The antennae are scarcely so long 

 as the head and thorax, so slightly clavate as to be almost 



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



o 



