138 [November, 1844. 



nate interstices with tufts of hairs ; thorax inequal, entire. — 3^ — 3| 1. long, 

 2 — 2^ 1. wide. Pennsylvania. 



Trox variolatus, Melsh. Catal. 



Black-brown, densely covered with minute granules : head with two ob- 

 tuse tubercles, tufted with ferruginous scaly hairs; clypeus acutely rounded 

 at apex and not reflexed : thorax inequal ; lateral margins broadly depressed, 

 with the edge entire, and fringed with scaly, ferruginous hairs ; medial 

 groove wide, shallow, hardly interrupted in the middle, contracted before 

 and fringed each side as the lateral edges, an obsolete narrow groove each 

 side of the dorsal one, having on the middle near its outer side a small conic 

 tubercle ; anterior edge fringed, except in the middle, as the lateral edges ; 

 posterior angles subacute, anterior ones acute : elytra with alternate rows 

 of oblong tufts of short, scaly, ferruginous or black hairs, spaces each with 

 two faint striaa, and sparse minute granules : beneath and feet colored as 

 above. — Allied to T. arenarius, Fabr., and has been considered by some as a 

 variety of that species, but it differs from it, apart of other characters, in 

 having the elytral striae impunctured. It may perhaps be the serrulatus of 

 Pal. de Beauv. 



Bolbocerus, Kirby. 



B. cornigerus. Red-brown ; head armed with a long filiform horn ; thorax 

 greatly unequal; elytra crenate-striate. — 5 1. long, 3 1. wide. Pennsyl- 

 vania ? 



Scaraboeus cornigerus, Melsh. MS. 



Reddish-brown : head blackish, scabrous ; clypeus rounded, marginate, 

 with a short longitudinal raised line at tip, base armed with a long filiform 

 smooth recurved horn : thorax very unequal, strongly carinate in the middle, 

 the carina grooved towards the base for the occasional reception of the apical 

 portion of the horn ; each side of the carina with a wide and profound con- 

 cavity, having its outer elevated narrow edge abbreviate a little behind the 

 anterior margin ; lateral edges reflexed ; posterior angles obtusely rounded, 

 anterior ones subacute ; lateral margins and concavities sparsely and pro- 

 foundly punctured : scutel subcordate, concave at base ; obsoletely punc- 

 tured : elytra crenate-striate, interstices convex : anterior tibiae quadri-den- 

 tate, with the apical tooth widely crenate. — Only one specimen of this spe- 

 cies in our collection. 



Bothynus, Hope. 



B. castaneus. Castaneous; clypeus truncate and faintly bidentate at apex. — 

 5 1. long, 3| 1. wide. Maryland. 



Short-ovate, convex, light chestnut, glossy : head darker than the thorax, 

 roughly punctured, posteriorly impunctured; clypeus truncate at apex, with 

 the edge slightly elevated, more distinctly at the posterior angles, anterior 

 lateral angles with a small, reflexed, obtuse tooth : palpi and antenna? rufo- 

 piceous : thorax glossy, sparsely and profoundly punctured, punctures most 

 numerous before the middle ; a small indentation behind the anterior angles, 



