34 MATERIALS TOWARDS A HISTORY 



Allied to villosum, but distinguished by the greater size, tapering elytra, mucronate 

 femora, and armature of the antennse, the spines being larger than in any of the species I 

 have seen, except in muricalum. 



Var. veslilum. More thickly clothed, rather smaller, and with the elytra but slightly tapering towards the 

 apex. Pennsylvania — June. 



30. E. villosum, Fabr., ii. 311. E. putator, Peck. Harris, Injurious Ins. of Mass., 81. 

 E. villosum? and pruinosum? Dcj. 



The larva feeds upon the living wood of the genera Quercus, Carya, and Castanea; 

 and, in one instance, I raised an individual, apparently of this species, from a larva taken 

 from the dead trunk of a small abies. It appears in Pennsylvania in May and June. 



31. E. pusillum. 



Reddish-brown; uniformly and sparsely clothed with short, prostrate, yellowish hair; prolhorax longer than 

 ■wide, swelled laterally; elytra elongate, parallel, each with a narrow emargination. 5j'" long; \\ wide. 



Antenna? pale-rufous, armature feeble; dorsal line, and an additional one, each side of it, obscurely marked with 

 yellowish down; scutel yellowish: elytra slender, parallel, outer posterior angle obliquely truncate; tip narrow; 

 finely emarginate, with a short, equal, sutural, and external spine: beneath, and feet, dull rufous. 



An individual, numbered 7-16 in Melsheimer's Catalogue, which I believe to belong to 

 this species, is there named bidens, of Fabricius, but it differs from the latter, as charac- 

 terised, in wanting two spines to each articulation of the antenna;, besides being much 

 more slender than the insect, as figured by Olivier. I am not acquainted with any species 

 possessing this peculiarity. The Melsheimer specimen is a little more than six lines long, 

 and has a few small scattered tufts of hair upon the elytra. 



32. E. rigidus, Say. (Stcnocorus.) Journ. Acad. N. Sc, V. 274. 



33. E. bidens, Fabr. Oliv., pi. 17, Capr. fig. 125. Encyc, V. 30G. " Antennarum arti- 

 culis bispinosis." "II ressemble beaucoup au spinicornc. (Oliv., pi. 17, fig. 130.) Les 

 antennes sont testacees, un peu plus longues que le corps, munies de deux pctites 

 epines a l'extremite de chaque article." — Encyc, 



*ANOPLIUM. 

 Like Elaphidion, but having the antenna? and elytra unarmed, and the pubescence uniform. 



34. A. PTJBESCENS. 



Pale yellowish-brown, robust, subeylindrie, elytra nearly parallel, entire at lip. 



7'" long; 2 wide. Inhabits Pennsylvania. 



Stcnocorus pubescens, Mels. Cat., No. 751. Head pubescent, with an impressed longitudinal line throughout; 

 eyes and tip of the mandibles black : prolhorax with a smooth lateral indistinct tubercle, and one upon the dorsal 

 line behind the middle: scutel triangular, yellow pubescent: elytra covered with impressed punctures, which arc 

 particularly obvious at the base : femora mutic. 



35. A. UMCOLOR. 



Slender, reddish-brown, wit'i a sparse and very uniform clothing of yellowish hair. 

 4 — 6'" long; 1 wide. Inhabits Pennsylvania. 



