CERAMBYCID^E 349 



have been disposed to identify as simplex Lee., were it not that the 

 author distinctly states that the discal ridges of the elytra "are 

 scarcely to be traced " ; in fastigiatus the prominence of these ridges, 

 especially the external of the three, which is very high and sub- 

 acutely cariniform in both sexes, completely prohibits any close 

 association with simplex, although it evidently belongs to the same 

 group, having the external angle at the elytral apices very obtuse; 

 in fastigiatus this angle is evident at the outer end of the truncature; 

 in simplex it may have become so very feeble as to escape the atten- 

 tion of the describer. Alaskanus, though apparently similar to 

 fastigiatus, has a series of fasciculate tufts, not traceable in that 

 species. The original penicillatus was obtained by LeConte on 

 Pic Island, near the northern shore of Lake Superior, and I am not 

 perfectly sure that the representative from Maine, described above 

 under that name, is really conspecific; similar examples, however, 

 serve that role in all present day collections. Some specimens 

 of mixtus, from New Jersey and Pennsylvania, have obviously 

 coarser, denser and more confused punctures, more wide-spread 

 pale maculation on the elytra and less prominent external apical 

 angles, than others, but I find the darker, more apically angulate 

 and more linearly and less densely punctate forms are not confined 

 to any particular locality. The size of arizonicus, as given by 

 Schaeffer, is probably a misprint. 



Tribe DESMIPHORINI. 



Desmiphora Serv. 



This is a moderately large genus in the warmer parts of North 

 and South America. The species have remarkably lineate and tufted 

 vestiture, giving them a very peculiar appearance. The following 

 species is possibly not the same as that identified by LeConte as 

 mexicanus Thorns., at any rate it is not that species, being very 

 much smaller in size among other differences. More recently Mr. 

 Schaeffer (Bull. Bk. Inst., I, p. 328) names in his Brownsville list 

 what is evidently the same species as the one here described, 

 hirticollis Oliv., but makes no further remark concerning it. As 

 hirticollis is a Brazilian species, the probabilities of its being iden- 

 tical are remote: 



