CURCUHONIDES. 267 



Genus THECESTERNUS nob. 



Anterior part of tlie pectus excavated for the reception of the 

 rostrum. 



Xatural character. — Body convex, firm, unequal : rostrum 

 very short, thick, entire : antennae rather slender, inserted near 

 the middle of the rostrum, in a deep, somewhat angulated groove ; 

 tirst joint oblong turbinate, a little an^uated ; second and third 

 short, subturbinate, the latter shorter ; fourth and eighth very 

 short, quadrate or transverse ; club rather large, of which the 

 basal joint (or two joints ?) is as long again as the ultimate one, 

 which is subacute : eyes a little oblique, somewhat acute before, 

 oblong subovate : thorax longitudinally somewhat quadrate : scu- 

 tel none : elytra connate, rigid, hardly broader at base than the 

 thorax, narrowed at tip and concealing the podex : pectus ante- 

 riorly deeply excavated to receive the rostrum : feet, anterior pairs 

 approximate : posterior pair distant : thighs not dilated : tibise 

 with a short, thick, or double spine at tip : tarsi simple. 



Ohs. — I proposed this genus when describing the species, but 

 omitted the name. It differs from Brachycerus F., and Epima 

 Billb. by the pectoral excavation, general form of the body, less 

 robust antennae, and larger club. 



T. HUMERALIS nob. (BracJiyccrus,) Journ. Acad. Nat. Sci. 

 Vol. 5, p. 254. 



[This is'' the type of Lithodus Germ. Seh. Cure. 2, 420.— 

 Lec. 



GRAPIIORHINUS Sch. 



1. G. VADOSUS. — Body dark cinereous : rostrum with a deep- 

 ly impressed line, on each side of the middle of which is a short 

 impressed line, and between the eyes is a dilated, suborbicular 

 indentation : thorax with large, somewhat irregular, approximate 

 punctures : elytra with the alternate lines more elevated, partic- 

 ularly towards the base ; punctures transverse. [9] 



Length less than two-fifths of an inch. 



Inhabits Missouri. 



This insect was presented to me by Nuttall. 



[Belongs to Epicaerus. — Leg.] 



