3494 SYNOPSIS OF CANADIAN ARCTIADAE. 
Secondaries bright ochre-yellow, with from four to six blue-black 
spots, three larger than the others. 
Abdomen ochre-yellow, with a reddish tinge, and a dorsal row of 
large black spots. Legs dusky; thighs and anterior tibie fringed 
with red. 
Length of body 9-10 lines. Wings expand 25-28 lines. 
The larva of this species does not complete its growth in the au- 
“tumn, but attains only to about three-eighths of an inch in length, 
when it hybernates, seeking shelter in some crevice, usually under 
the loose bark of decaying trees. At this period it presents the 
following appearance :—Head black ; body dark brown, with trans- 
verse rows of tubercles, from which spring dense tufts of inter- 
mingled blaek and white hairs. For two summers past we have 
reared the larva from eggs deposited by captured females, to the 
period of hybernation ; but have failed to preserve them alive during 
‘the winter. Several years since we found, in the latter part of May, 
a full-grown specimen, but it entered the chrysalis state before an 
opportunity occurred for describing it.| They are somewhat omni- 
vorous in their appetites, but show a preference for the common 
_garden lettuce and lamb’s quarter (Chenopodium album.) 
The perfect insect usually appears in the latter part of June or 
-early in July. 
Hab.—London, not common; Toronto (Mr. Bethune); Kingston 
(Mr. Rogers); Trenton Falls, N.Y. ; Lake Superior. 
*4, parthenos /—Harris. Figured in “ Agassiz Lake Superior,” 
pl. 7. Var.: A. Americana.— Walker. 
“ Head brown, with a crimson fringe above, and between the black 
antennz.: Thorax brown above, with an arcuated cream-coloured 
+ Since the above was written, specimens of the full grown larva have again been pro- 
cured. They were found on the 18th of June, under some logs. The following description 
will serve to complete the history of this species:—Length two inches. Head black and 
bilobed. Body deep velvety-black, with transverse rows of tubercles, most of which are of 
a whitish colour, emitting tufts of hair. Hairs on second, third, and fourth segments dull 
red—on the latter slightly intermixed with white ; those along the back are very long and 
silky, white mixed with black; while those on the sides are shorter, and of a dull red color. 
Under surface dull black, with a thickly set row of tubercles, in continuation of those above, 
on the third, sixth, eleventh, and twelfth segments, from which spring tufts of very shoré 
stiffish red hairs. Feet and prolegs black and shining. 
® Those species prefixed with an asterisk (*) are not in the writer's collection ; he would 
therefore feel greatly obliged for specimens from any person possessing duplicates of such. 
