98 THE CANADIAN ENTOMOLOGIST. 
[221.] FAMILY SAGRIDZ. 
297. ORSODACNA TIBIALIS Kirdy.—Length of body 234 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 A?trby.—Plate vii, fig. 6. Length of 
body 234 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 DONACIADÆ. 
209. HÆMONIA NIGRICORNIS X?rby.—Length of body 3% lines. 
Taken in Canada by Dr. Bigsby. 
This species is considerably larger than 77. Æquiseti and Zostera, 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, witha 
levigated naked testaceous longitudinal elevation between the eyes ; 
antennae black, robust, very little longer than the prothorax ; prothorax 
