270 ENTOMOLOGICAL SOCIETY 



Body slender; humeri obliterated; elytra without marginal row of punc 

 tures ; underside and epipleurse smooth; sides of thorax with a single 

 setigerous puncture; elytral striation incomplete. 



Front tarsi of $ widely dilated; elytra oblong-oval, with from five 

 to six abbreviated striae; fourth interstice with a series of setige 

 rous punctures Jmbbardi n. sp. 



Front tarsi of $ n t dilated; elytra elongate-oval, with from three 

 to four strise, interstices without setigerous punctures. 



im^erfectus Horn. 



1. N. bilobus Say. 



cf. Front tarsi moderately dilated, densely papillose beneath, except 

 ing base of first joint; joint i fully twice longer than wide at tip, joints 

 2-4 much decreasing in size, each slightly longer than wide; last joint of 

 palpi much dilated; last joint of labial palpi with the apical edge much 

 longer than the inner lateral edge and slightly longer than the outer lateral 

 edge. 



2 not seen bv me. 



The post-ocular constriction is deeply impressed, and the ver 

 tex greatly convex ; side of the prosternum and the pro-epimera, 

 sides and side pieces of meso- and meta sternum are coarsely 

 punctate ; sides of first abdominal joints with some indefinite 

 punctures; second joint of labial palpi with four setaB. 



The specimens before me are from the Lake Superior region 

 (Marquette and Michipicoten Island), and I have seen others from 

 Canada and New Hampshire, but none from Say's type localities, 

 "Missouri" (probably northern Nebraska) and "' North western 

 Territory" (probably Minnesota). 



2. N. cavicollis Lee. 



I have examined only a single female specimen from Texas : 

 second joint of labial palpi with 5 setae, last joint strongly secu 

 riform, with the apical edge slightly longer than the inner edge 

 and distinctly shorter than the outer edge ; last joint of maxillary 

 palpi much more slender than that of the labial palpi ; post-ocular 

 constriction less impressed than in bilobus, and the vertex less 

 convex. The punctures on the anterior part of the prothoracic 

 disc are setigerous ; those near the base simple ; under side more 

 punctate than in any other species. 



3. N. fissicollis Lee. 



Only a few specimens from Texas and Kansas have been seen 

 by me. From a superficial examination of a male in Mr Ulke's 

 collection I made the following notes : Front tarsi slightly less 

 dilated than in bilobus, spongy, pubescent beneath, first joint 

 more slender than in bilobus and pubescent only at apical half ; 

 last joint of palpi strongly dilated ; last joint of labial palpi with 





