CERAMBYCID^E 221 



Family CERAMBYCID/E. 



Subfamily PRIONIN/E. 



Trichocnemis Lee. 



This genus is distinct from Er gates and should be restored. The 

 last joint of the maxillary palpi in Ergates is oval and more narrowly 

 truncate at apex, while in Trichocnemis it is of a wholly different 

 form, being broadly obtriangular, the sides straight and widely 

 flaring from base to the truncate apex. In the former there is a 

 prominent lateral spiniform tooth at basal third of the prothorax, 

 wanting in the latter, and there are numerous other incongruities. 

 The two genera are related tribally but are unquestionably distinct. 



Trichocnemis neomexicana Csy., is a different species from spiculata 

 Lee. The name Ergates marmoratus, though not appearing in the 

 Zoological Record for 1890, was published for this species by Prof. T. 

 D. A. Cockerell, but no diagnostic characters were given beyond the 

 marmoration of the elytra, and, as there is no evidence that this 

 may not occur occasionally in spiculata, it would seem that the 

 application of the name marmorata is to some degree ambiguous 

 and therefore in the nature of a nomen in litteris. The two names 

 were published simultaneously so far as determinable from the 

 record as I recall it now, and weighing all the evidence, it would 

 seem that neomexicana is that which should prevail. 



Tribe MALLODONTINI. 



A general consistency of facies runs through the moderately 

 numerous genera of this tribe, which, so far as known to me, may 

 be defined briefly as follows: 



Mandibles differing sexually, horizontal, more or less elongate and 

 generally densely pubescent within in the males, small, arcuate and 

 less pubescent in the female; body more or less depressed 2 



Mandibles similar in the sexes and deflexed, not pubescent within, the 

 pronotal sculpture also nearly similar in the sexes, the body notably 

 convex 5 



2 Posterior angles of the prothorax broadly oblique to the ante-basal 

 tooth, not toothed at the basal margin; pronotum differing in the 

 sexes, densely and finely punctured with polished and sharply 

 limited impunctate areas in the male, smooth medially, more steeply 

 declivous and roughly sculptured at the sides in the female; mandi- 

 bles in the male long, very densely pilose within Mallodon 



