CALAKDRID.^:— COSSOXIN^— DKYOPIITHOIJINI. 153 



becoming converted into fine carin.np, jj-iviiiff it a coiiiIxmI appearance; the 

 constriction consists of a deeper but line sulcation, wliich is farther from the 

 beak above than below; the prothorax is more coarsely, very closely, and 

 uniformly granulate, becoming finely rugulose anteriorly on the lower 

 sides ; the elytra are ridged, but not heavily, and also transversely subi-ugu- 

 jose and rather finely and sj)arsely punctate 



Length, excluding beak, S^"'"; lengtli of beak, ISS"""; height of 

 body, l-S""". 



Florissant, Colorado. Two specimens, Nos. (JUIS, ll.'jli) and i;j(J73. 



LITIIOPHTHORUS (A/9o?, cpdeipco), gen. no v. 



A genus of Dryophthorini, remarkable for the small number of joints 

 in the funicle of the antennae, there being but two or at most three, while 

 no Hviug Cossoninae appear to have less than four. It has much the general 

 aspeet of a Gononotus, but with a shorter and straighter rostrum, and i\o 

 rounded protuberances on the prothorax, though the sculpturing is in gen- 

 eral similar. Head verv sliort: the beak is about two-thirds as Ion"- as the 

 prothorax, pretty stout and scaix-ely curved, with a transverse ridge just 

 beliind the eyes; these are small, superior, as high as the width of the mid- 

 dle of the beak, with a nearly straight posterior margin ; antenna' inserted 

 somewhat before tin- middle of the beak, the scape .slender Init enlarged at 

 tip to nearly ih)uble its previous size, long enough just to fail of reaehing 

 tile eyes; funicle shorter than the scape, composed of oid\ two or at most 

 three obovate joints, the club long oval, slender, compo.sed of three joints, 

 till' last minute. Prothorax coar.sely .scul|)ture(l liut even, except for .some 

 narrow, .sinuate, lateral, longitudinal carinjc, as in (lononotus. Elvtra 

 apparently suljcostate. Middle and hind coxa3 both e([ually and widely 

 sejjarated. Mesosternura not very short, side jiieces narrow. Abtlominal 

 segments exactly as in Gononotus. 



A single species has occurred, ver\- large for a member ot' this tribe, 

 at Florissant. 



