98 THE CANADIAN ENTOMOLOGIST. 



x 



[221.] FAMILY SAGRID^E. 



297. Orsodacna tibialis Kirby. — Length of body 2^ lines. A 

 single specimen taken in the journey from New York to Cumberland- 

 house. 



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

 glossy, thickly punctured. Palpi 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. 



[Taken at Lake Superior by Agassiz's Expedition.] 



298. Orsodacna Childreni Kirby. — Plate vii, fig. 6. Length of 

 body 2^ lines. A 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 elevation 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 ; scutellum rufous ; elytra rather 

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

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

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

 with decumbent white hairs. 



[Taken in Canada.] 



FAMILY DONACIAD^E. 



299. H.f.monia NiGRicoRNis Kirby. — Length of body 3^$ lines. 

 Taken in Canada by Dr. Bigsby. 



This species is considerably larger than //. Equiscti and Zosterce, from 

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

 it is covered with a thick coat of pale, decumbent, rather silky hairs, with 

 somewhat of a golden splendor, if these are rubbed off, 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 



