114 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



the superior pudendal membrane slightly shorter, not quite reach- 

 ing the base of the internal apical lobe. 



Ilah'dat. — New Mexico (Cloudcroft, August, elevation 9,000 feet, 

 W. Knaus). 



Number of specimens studied, 5. Monotype a female in my own 

 collection. 



Typt' -locality. — Cloudcroft, New Mexico ; collector, Warren Knaus. 



Salient type -characters. — Luster subopacjue. Pronotal disk with- 

 out basal impressions; elytral sculpturing subgranulato-muricate 

 and not sulcato-striate. 



Diagnostic characters. — Easily recognized by the salient type char- 

 acters. 



Difi'ers from trlcostata by the more convex elytra without any evi- 

 dence of costae. 



Neomcxicana is a distinct and in all probability an extreme varia- 

 tion of pedinoides and in no way related to any other known species. 



The asperate form of pedinoides is evidently a connecting link be- 

 tween trlcostata and the last-named species. For some time I was 

 undecided as to the propriety of considering it a race of trlcostata, 

 but finally decided that it had greater affinity with pedinoides. As 

 a race of trlcostata it would be analogous to neoniexicana. Its form 

 is variable, sometimes that of the one and again that of the other 

 species ; the sculpturing most usually is that of pediiioides, while the 

 sparsely placed flavate pubescence is that of trlcostata. 



In all probability a large series would corroborate the opinion 

 already expressed — that it is a connective form. 



In neoniexicana the prosternuni is as in pedinoides, although usu- 

 ally more or less vertically subtruncate behind, rarely feebly submu- 

 cronate. Other sternal, abdominal, and crural characters are as in 

 pedinoides. 



The tarsi are less elongate than in pedinoides and about as stout, 

 and the narrowing of the joints from the first to the fourth is only 

 distinctly evident in the protarsi ; the meso- and metatarsi have their 

 respective joijits mutually subequal in width. 



In the female the protarsi are about one-half of their length shorter 

 than a mesotarsus. 



The mesotarsi are one-ninth of their length shorter than a meta- 

 tarsus, and a metatarsus about one-lialf of its length shorter than its 

 metatibia. Othei-wise as in pedinoides. 



Subgenus LITHELEODES, new. 



Species mider moderate size and ovate in form, the elytral sculptur- 

 ing varying from smooth to tuberculate. 



The prothorax is usually subquadrate; the anterior femora of the 

 males are more or less dentate in part of the species; first joint of 



