238 CUKCUL ION-ID^. [LeConte. 



third from the tip. Scape scarcely reaching the eyes which are small and 

 lateral; funiculus rather short; first joint larger and stouter, six remaining 

 joints short, slightly increasing in thickness, closely united; club large, 

 oval-pointed, annulated. Prothorax gradually narrowed from the base, 

 broadly constricted near the tip, feebly rounded on the sides; postocular 

 lobes wanting. Elytra ovate, convex, broader and sub-truncate at base, 

 humeri prominent, gradually narrowed behind, and strongly declivous. 

 Prosternum deeply emarginate in front, pectoral groove deep, antecoxal 

 ridges strongly developed; front coxae moderately distant. Mesosternum 

 declivous; middle and hind coxag widely separated; metasteruum short. 

 Ventral segments with straight, distinct sutures; first a little longer than 

 the second; third and fourth shorter; fifth flat, rounded behind, as long as 

 the second. Legs slender, rather short, thighs not toothed, tibite slightly 

 mucronate at tip; tarsi with the third joint broad, bilobed; last joint as long 

 as the others united; claws slender, divergent, not toothed. 



1. M. setiger, n. sp. 



Black, covered with a dirty crust, and clothed with stout bristles, erect 

 on the prothorax, reclinate on the elytra. Head and beak rather finely punc- 

 tured. Prothorax strongly punctured. Elytra with deep strije, interspaces 

 somewhat convex; the alternate ones a little wider. Beneath coarsely and 

 densely punctured. Length 2.1 mm.; .085 inch. 



Two specimens, Georgia. 



Group IL Acampti. 



As Camptorhmus differs from the CryiUorliyncM by the pectoral groove 

 being confined to the prosternum, though distinctly limited behind, so is 

 the singular insect which constitutes this group similarly separated from 

 the Ithi/pori, by the shorter beak resting upon the front coxse. The body 

 is elongate, as in GamptorJiinus, and the tibiae are stout, sinuate on the 

 inner side, and strongly hooked at the tip. The other characters are pecu- 

 liar, the tarsi are not dilated nor spongy beneath, and the club of the an- 

 tennae is pubescent and sensitive only near the tip. 



These characters indicate relationships in various directions, such as the 

 ByrsopidiM and Cossonidce, but the insect preserves unchanged all the es- 

 sential characters of the Cryptorhynch type of Curculionidce. 



ACAMPTUS n. g. 



A very singular species of elongate form, clothed with dirt-colored hair, 

 and short, erect bristles represents this genus . 



The beak is short and stout, as long as the head, and expanding grad- 

 ually into it, so that no distinct separation appears; the antennal grooves 

 begin about one-third from the end, and descend obliquely to the eyes, 

 Avhich are small, lateral, and not prominent. Antennte with the scape ex- 

 tending to the front margin of the eyes, clavate; funiculus not longer than 

 the scape; first joint stouter and about as long as its width; remaining 

 joints five, short, gradually increasing in width, closely connected, passing 



