62 [May, 1846. 



Ovate, dull sanguineous : head minutely punctured, margined and obtusely 

 rounded at apex ; eyes black ; antennae color of the head, thickened towards the 

 tip, with the fourth joint longer than the third, the second joint shorter than 

 any of the other joints ; terminal joint thickest, subglobose : thorax glossy, mo- 

 derately convex, short, transverse, feebly notched in front, slightly bisinuate 

 behind, where it is wider than at apex, and as wide as the base of the elytra ; 

 sides feebly rounded ; above very minutely and distantly punctured ; each side 

 of the middle at base with an obsolete impression ; hind angles subrectilinear : 

 scutellum- triangular, color of the thorax : elytra black, tinged with rufous, par- 

 ticularly at the sides, base and tip; punctate-striate, with the striae fine and 

 slightly impressed ; interstices flat, polished, impunctured : beneath deeper 

 colored than the thorax, coarsely punctured ; feet rufo-testaceous. Sometime? 

 the thorax is dusky sanguineous, and the elytra entirely black. 



2. N. rafa. Dull rufous, shining ; beneath and feet rufo-testaceous. 2J 1. 

 long ; 1 J 1. wide. Pennsylvania. 



Short, ovate, dull rufous ; glossy : head very minutely punctured, rounded 

 at apex, an arcuated impressed line between the antennae, and a small obtuse 

 indentation on the vertex; antennae rufo-piceous, slightly thickened towards the 

 tip, with the third joint longest, and second shortest ; terminal joint ovate ; eyes 

 black ; terminal joint of the palpi triangular ; thorax formed like in the preced- 

 ing, shining, punctured as the head ; each side of the middle at base with an 

 obtuse impression : scutel triangular : elytra punctate-striate, striae fine, punc- 

 tures small, close set ; interstices flat, almost impunctulate : feet and epipleiiifie 

 testaceous-yellow. Resembles much in the outlines of the body Diaperis rufi- 

 conris, but that species is black and opake, and is also somewhat differently 

 sculptured. 



Platydema, Laporte. 



P. picilabrum. Black ; antennas, labrum, palpi and feet rufo-piceous. If 

 2\\. long ; f 1 1 -5th 1. wide. Pennsylvania. Numerous. 



Oblong, deep black, sometimes with a greenish reflection, shining ; head con- 

 fertly punctulate ; mouth, palpi and basal joints of the antennas rufo-piceous, 

 the latter with the clava frequently testaceous yellow ; transversely indented 

 between the antenna' : thorax transverse, notched in front, bisinuate behind, 

 where it is wider than before, with the sides feebly rounded ; angles subob- 

 tuse ; above deusely punctulate ; a profound impression each side of the middle 

 at base : scutellum subtriangular, impunctured : elytra punctate-striate, the 

 interstices flat, very minutely and obsoletely punctured : beneath black, some- 

 what piceous ; two terminal abdominal segments impunctured : feet dark rufo- 

 piceous. 



Tenebrionidee, Steph. 



Hypophlceus, Fabr. 



1. H. nilidus. Castaneous ; feet rufous. 3 1. long ; 1. wide. Pennsyl- 

 vania. 



Hypophlcem nilidus, Melsh. Catal. 



Cylindric, dark chestnut-red, shining ; head deeply punctulate, bitransversely 

 impressed : antennae color of the thorax, with the tip and mouth rufous : thorax 



