180 CURCULIONZDA 



[LeConte. 



first joint longer and stouter, remaining joints short, closely united; club 

 oval, pointed, entirely pubescent, annulatecl. Protliorax obliquely truncate 

 in front, without postocular lobes, longer on the disc than at the sides ; 

 prosternum extremely short, not emarginate in front. Elytra much 

 wider than the prothorax, huineri nearly rectangular. Ventral segments, 

 first, second and fifth very large, third and fourth very short, last ventral 

 suture slightly curved. Legs slender, thighs not toothed; tibiae truncate at 

 tip, very slightly mucronate; tarsi narrow, third joint not broader, slightly 

 emarginate ; fourth joint as long as the two preceding ; claws slender, 

 divergent. 



This group diverges towards Prionomerus in the form of the head and 

 antennae, but otherwise has no resemblance to that genus. 



STENOPELMTJS Sch. 



1. S. rufinasus Gyll., Sch. Cure, iii, 469 ; Panscopus\\ ruf. Sch., ibid, 

 vii, 2, 351; Monius ruf. Sch., ibid, (corrigenda) viii, 2nd, 501. 



Southern and Western States, to California, where it was found abund- 

 antly by Mr. Crotch and myself at San Diego. The reason given by 

 Schonherr for changing the name under which he first defined this genus is 

 not a valid one. Even if tnere were in Dejean's Catalogue a genus Stenop- 

 elmus (which is not the case in the latest edition), it could have no prece- 

 dence over the name as substantiated by description. The use of Monius to 

 indicate this genus is therefore incorrect. 



Group VI. Bracbypi. 



The genus Brachypus is placed by Lacordaire in his group ErirMnides ; 

 it differs from the other genera of that division by the narrow linear form. 

 Though the three species described below, do not exactly agree with the 

 generic description given by Schonherr and Lacordaire, I think that they 

 accord sufficiently to indicate the propriety of associating them together as 

 a special group. 



As here established, the BracTiypi are nearly related to Hydronomi, but 

 differ by the third joint of the tarsi being more or less bilobed, and the hind 

 tibiae truncate at tip, not unguiculate, but only feebly mucronate, with 

 the articular surface terminal. The tarsi are either broad or narrow, the 

 third joint sometimes but little dilated, and the last joint long, with large 

 divergent claws. The body is narrow, covered with a dense water-proof crust 

 of scales, as in Cryptopli and Hydronomi. The beak is straight, cylindri- 

 cal, moderately stout, and as long as the prothorax ; the antennal grooves 

 run directly to the eyes and converge but slightly behind; they commence 

 at a varying distance from the mouth. The antenna? are slender ; funicle 

 7-jointed, first and second joints elongated in our genera, 3-7 gradually 

 broader, club oblong-oval, annulated, entirely covered with sensitive sur- 

 face. Prothorax with large postocular lobes, prosternum deeply emarginate 

 beneath, not excavated. Legs long, slender, thighs moderately clavate, 

 front and middle tibiae slightly sinuate, feebly mucronate at tip. 



