134 COLEOPTERA OF NORTH AMERICA. 



than any other Clavicorn family. These affinities are perhaps most 

 obvious in a small Mexican black species (genus, if described, 

 unknown to me), which has the upper surface smooth, pulished, 

 and somewhat convex, the prothorax narrower than the elytra ; 

 the eyes neai'ly contiguous to the prothorax; the first joint of 

 the antennae very long, the last three somewhat enlarged. The 

 front is prolonged into a narrow flat beak, as in Rhinosimus, 

 about three times longer than the head proper. It was collected 

 by Truqui in Mexico, and kindly given to us by Mi-. Alexander 

 Fry, of London. If tiie species be still undescribed, it may pro- 

 perly be named Xenorhinus Truquil. 



Tribe II.— BROA'TIXI. 



This tribe consists of two genera, found on both sides of the 

 continent, and also in Europe. Brontes is generally diffused, 

 Dendrophagus only in the northern regions. The elytra are 

 striate in both. 



Body very elongate ; sides of thorax parallel ; mesosternnm truncate in 

 front. Dendrophagus. 



Body less elongate ; sides of thorax strongly serrate, anterior an.ules pro- 

 longed ; mesosternum strongly emarginate in front. Brontes. 



Sub-Family IV.— HEMIPEPLIN^. 



In this sub-family the anterior coxal cavities are nearly con- 

 fluent, and narrowly closed behind; the elytra are rounded at tip, 

 but shorter than the abdomen. The anterior and middle tarsi 

 are somewhat dilated, and the fourth joint is not smaller than the 

 third, and is slightly lubed beneath; the hind tarsi (of both sexes) 

 are 4-jointed. The body is very elongated, linear, and depressed ; 

 the head is narrowed behind the eyes, which are large. The 

 thorax is somewhat narrowed behind, with a large puncture each 

 side, near the base ; the antenna are a little longer than the head 

 and thorax, very slightly thickened at the extremity, with the first 

 joint as long as the three following; the maxillse are not covered, 

 and the gen^e are but slightly prominent. 



HemipejjJus maj-ginijoennis lives on Chamscrops palmetto in 

 the Southern States. 



