236 



NORTHERN ZOOLOGY. 



Family BOLITOPHAGIDiE. Bolitophagidans. 



CXXVII. Genus BOLITOPHAGUS. Ulig. 



(321) 1. * Bolitophagus cornutus. Horned Bolitophagus. 



Bolitophagus cornutus. Fab. Sijst. Eleuth. i, 112, 1. 

 Opatrum bifurcum. Fab. Ent. Syst. Suppl. 40, 1. 



cornutum. Panz. Fn. Am. Boreal. Prad. t. i, /. 5, 6. Say, Am. Ent. iii, t. li. 



Eledona cornuta. Lat. Hist. Nat. x, 312. 



Length of the body 5 lines. 



Taken in Canada by Dr. Bigsby, in a Boletus of the birch, near Lake Huron. 



DESCRIPTION. 



? 



Body oblong, black without the least gloss. Head transverse, nutant, flat, uneven ; cheeks an- 

 gular ; antenna; with the three last joints thicker than the rest, the last being the largest : prothorax 

 crescent-shaped ; sides anteriorly expanded, toothed; posteriorly constricted with acute lateral angles; 

 disk anteriorly elevated into a crest terminating in two rounded subtuberculated lobes ; behind the 

 crest are four obsolete subtuberculated ridges : scutellum rounded : elytra tuberculated with the tuber- 

 cles arranged in rows ; those next the suture and towards the apex being the largest : some irregular 

 rows of punctures are also discernible in the interstices ; upper margin of the epipleura obtusely 

 dentated. 



(322) 2. * Bolitophagus obcordatus. Obcordate Bolitophagus. 



B. (obcordatus) nigricans, prothorace obcnrd-ato, piano, incequali : elytris fuscescentibus ; antice obtuse tricarinatis, postice bitu- 



berculatis ; seriatim foveatis. 

 Obcordate Bolitophagus, prothorax obcordate, Hat, unequal : elytra embrowned, anteriorly obtusely tricarinate, posteriorly 



bituberculate ; deeply impressed in rows. 



Length of the body 65 lines. 



Taken in Nova Scotia by Capt. Hall. 



DESCRIPTION. 



Body linear-oblong, pollinose. Head brown-black, subtriangular ; labrum ciliated with yellow 

 hairs ; antenna; black-piceous, last joint smaller than the two antecedent ones, which are bigger than 

 the rest: prothorax brown-black, obcordate with a larger anterior sinus for the head; surface flat, 

 uneven behind from five obtuse ridges, the lateral ones abbreviated, and before from several rounded 

 tubercles : scutellum minute : elytra embrowned with a yellowish tint from lutose scales, anteriorly 



