^2 MATERIALS TOWARDS A HISTORY 



95. C. GEMINATCS. 



Dark-brown, head and prothorax black, minutely scabrous; elytra with an oblique whitish line near the 

 apex, and a geminate one, forming a flattened oval near the base ; femora clavate. 21"' long. Inhabits Penna. 



Allied to picipes and pineadeus. The anterior side of the ohlique oval on the elytra is 

 formed by an elevated line; antennae and feet varying from yellowish-brown to piceous. 



96. C. GAZELLUTA. 



Minutely scabrous, pale-brown, pronotum darker, lengthened, narrowed behind: aqtenna3 filiform, and with 

 the under parts dull testaceous: elytra with the apex, two spots near the base, and a medial transverse band, 

 white tomentosc. Three lines long. Inhabits Pennsylvania. 



97. C. supernotatus, Say. Journ. Acad., iii. 425. C. minntissimus, Dcj. 



Scutel whitish, and with two light spots on the elytra, finely tomentose. 5 — 7 mm. long. Inhabits Massa- 

 chusetts, Harris : Missouri, Say : Pennsylvania, June : Carolina, March — June. — Hentz. 



Presents much the appearance of a minute Saperda. 



98. C. PYGM^US. 



Dark-brownish testaceous; front convex; antennae annulate, with one or two spines or hairs at the apex of 

 the articulations: head continuous with the prothorax, which is wedge-shaped, widest before, with the sides 

 rectilinear: feet strongly clavate. V" long. Inhabits Pennsylvania. 



Callidium pygmaeum. Meh. Cat., No. 821. 



Remarkable for its minute size, and the great latitude of the head and adjoining por- 

 tion of the thorax. Characterized from an imperfect individual in Dr. Melsheimer's 

 cabinet. 



*DIOZODES. 



Body oblong, depressed, shining: head porrect, terminal articulation of the maxillary palpi 

 cylindrical, and truncate at tip; eyes prominent; antennae eleven-jointed, almost filiform, 

 very slender, base rather long and enlarging outwards, second articulation short, nar- 

 rowed at base, third shorter than the first, fourth slightly longer than the third, fifth 

 longest, the remaining ones gradually shorter to the extremity, prothorax with a trans- 

 verse groove at each extremity, depressed, longer than the head, much contracted pos- 

 teriorly, the sides projecting into a large tubercle before the middle : elytra with piliterous 

 punctures, widening posteriorly, and conjointly rounded at tip: femora clavate: first and 

 second segments of the abdomen entirely confluent. 



99. D. pallida, Say. (Callidium.) Journ. Acad. Nat. Sc, iii. 412. Rbagium nitidum. 

 Meh. Cat., No. 790. Boston Soc. Collection, No. 815. Obrium lepidum, Dcj. 



Inhabits Arkansas, Pennsylvania; and Carolina, (June,) on Castanea puniila. 



OBRIUM, Serv. Ann. Ent., iii. 93. 



100. O. rukulum, Dcj. 24'" long. 



101. O.? DEJEANII, Lc ContC. 



3'" long. Olivaceous, elytra abbreviated. 



