103 



Body piceous ; underneath hoary with decumbent hairs ; above naked, 

 glossy, thickly punctured, Pali)i and two last joints of the antennae 

 obscurely rufous ; front between the eyes with a transverse levigated ele- 

 vation ; prothorax longer than wide, constricted at the base ; lateral 

 margin and epipleurae or side-covers of the elytra, except at the base, 

 yellowish-red ; thighs, at the base, and tibiae reddish-yellow, the four 

 posterior tibiae darker at the apex. 



['J'aken at Lake Superior by Agassiz's B'xpedition.] 



298. OksoDACNA Cun.DRKM A'ir/'j.— Vkdc vii, lig. 6 Length of 

 body 2 3/( lines. .\ single specimen taken in Lat. 54' 



[222.] Body above punctured, naked. Head and its organs yellow, 

 with the eyes, occiput, and apex of the mandibles black ; a levigated 

 transverse elevatign of the front, as in the preceding species ; prothorax 

 longer than wide, constricted at the base, with an impression in the 

 middle, pale-yellow, disk embrowned ; scutelluui rufous ; elytra rather 

 paler than the prothorax, with a stripe adjoining the lateral margin, an 

 angular band beyond the middle and the base, black ; aniepectus, anus, 

 and legs, yellow, rest of the underside of the body is black, and hoary 

 with decumbent white hairs. 



[Taken in Canada.] 



FAMILY DOXACIAD.K. 



299. H/EMONiA NiGKicoRNis A't'/fij. — Length of body ^J 3 lines. 

 Taken in Canada by Dr. Bigsby. 



This species is considerably larger than //. Equiscii and Zostene, from 

 which it is perfectly distinct. Body luteous above and glossy; underneath 

 it is covered with a thick coat of ])ale, decumbent, rather silky hairs, with 

 somewhat of a golden splendor, if these are rubbed o^, the colour of the 

 breast and basal abdominal segment is black. Head hairy, dusky, with a 

 levigated naked testaceous longitudinal elevation between the eyes ; 

 antennae black, robust, very little longer than the prothorax ; prothorax 

 subquadrangular with prominent anterior and posterior angles making it 

 appear constricted in the middle, it is channelled with an irregular discoidal 

 impression on each side ; a few large dusky punctures are observable 

 where the channel terminates : elytra with ten equidistant rows of large 

 punctures which converge at the apex ; besides these there is an abbrevi- 

 ated row at the base next the suture, as in many Hiirpalida-, &c., the apex 



