COLEOPTEUA. 103 



P. triincatuin n. sp. — Form short, broad; sidos nearly parallel; 

 rather depressed. Color throughout piceous-hlack ; pubescence sliort, not 

 dense, sericeous, pale fulvo-cinereous ; integuments polished. Head large, 

 twice as wide as long ; anterior margin strongly arcuate between the an- 

 tennae ; eyes large, prominent; interocular surface broadly convex, smooth, 

 excessively finely punctulate at the bases of the hairs ; antennae distinctly 

 longer than the head and prothorax together, strongly geniculate, black 

 except the two basal joints which are dark piceous-brown ; second joint 

 more than twice as long as wide, cylindrical, third much more slender, 

 shorter than the fourth, joints four to eight gradually decreasing in length 

 and very slightly increasing in thickness, ninth distinctly thicker andJonger 

 than the eighth, joints of club increasing rapidly in length and thickness, 

 eleventh somewhat abruptly enlarged at the base, much elongated, nearly as 

 long as the two preceding together, somewhat pyriform. Prothorax widest 

 just behind the middle, where it is about one-half wider than long and but 

 very slightly wider than the head ; sides moderately arcuate ; apex very 

 slightly sliorter than the base, the former broadly and extremely feebly 

 arcuate, the latter transverse and extremely feebly sinuate in the middle ; 

 posterior angles obtuse and very slightly rounded ; disk moderately convex, 

 smooth, extremely narrowly margined at the base and sides, polished; hairs 

 growing from very minute ev^enly distributed and sparse punctures. Scu- 

 telluni rather large, finely asperate, equilatero-triangular. Elytra at base as 

 wide as the contiguous pronotum, widest at two-thirds the length posteriorly, 

 where they are conjointly slightly narrower than long and as wide as the 

 pronotum ; abruptly truncate behind, outer angles rounded, inner extremely 

 slightly so ; disk moderately convex, finely evenly irregularly and somewhat 

 closely asperate, shining, about four-fifths longer than the pronotum. Abdo- 

 men extending slightly beyond the elytra, very short in comparison with the 

 metasternum. Legs rather robust ; femora reddish-brown ; tibiae and tarsi 

 paler and more flavate ; posterior coxae strongly laminate, rather widely 

 separated ; epipleurae of pronotum finely and distinctly rugulose. Length 

 0.(3 mm. 



Pennsylvania, near Philadelphia, 1. 



Found in the same locality as in the preceding. It appears to 

 resemble P. Knnzei slightly in form. It is as far as I can determine 

 very distinct by reason of the large eyes, very broad head, polished 

 integuments and more particularly in the curious structure of the 

 antennae because of which it may have to be generically separated. 



TRICHOPTERYX Kirby. 

 T. radicola n. sp. — Form very robust, convex. Color above black; 

 legs, coxae, oral organs dark reddish-testaceous ; antennae piceous-black, 

 basal joints testaceous ; pubescence very sparse, recumbent, short, pale 

 piceo-cinereous. Head large, much more than twice as wide as long; sides 

 convergent and deeply sinuate over the bases of the antennae ; anterior 

 margin truncate in the middle, rounded at the anterior angles ; interocular 

 surface evenly convex, highly polished and impunctate ; eyes rather small, 



