SYNOPSIS OF CANADIAN ARCTIADAE. 367 
third ring is a similar black pencil, and two which are white placed 
in the same manner on the sides of the fourth and tenth segments. 
These larve are gregarious; they feed on milkweed (Asclepia Syriaca). 
They are full grown about the month of September, when they leave 
off feeding, disperse, conceal themselves, and make their cocoons, 
which mostly consists of hairs. The chrysalis is short, almost egg- 
shaped, blunt, and rounded off at the hind end, and is covered with 
small punéures. 
‘The perfect moth appears between the middle of June and the 
beginning of July.” 
Hab.—Mass.; New York. 
Halesidota.— Hubner. Lophocampa.—Harris. 
Palpi stout, porrect, not long; third joint conical, very minute. 
Primaries long and narrow. Body stout; abdomen smooth, extend- 
ing beyond the secondaries. Legs stout, smooth; hind tibie with 
four spurs, moderately long. 
Table of species: 
A. Primaries semi-transparent ...............-0.ss0c0e+00-- Lesselaris. 
Pay At ic densely clothed un sere, a 
B. Primaries with transverse rows His sven 
white spots......... Peer ner eee ee ae COMME 
_ BB. Primaries with seller Bee sob Oe aie 
BBB. with whitish tawny Gordbred spots.fulvo flava. 
H. tesselaris!—Sm. Abb. Figured in Sm. Abb, pl. 75. 
Palpi deep yellow, tipped with black. Antenne brownish-yellow. 
Head and thorax whitish-yellow; inner edges of shoulder-covers 
fringed with bluish-green, with the space between the fringes bright 
yellow. 
Primaries semi-transparent, whitish, tinged with ochre-yellow, with 
five irregular transverse dusky bands, edged on each side with deli- 
eate blackish lines. 
Secondaries paler than the primaries and more transparent. 
Abdomen ochre-yellow above, paler below. Feet ochre-yellow, 
spotted with black. 
Length of body 5-6 lines. Wings expand 19-20 lines. 
Larva: ‘“ Head brownish-yellow. Body. yellowish-white, with 
dusky tubercles, from which spring tufts of light yellow or straw- 
colored hairs, those along the crest being a yery little darker: on 
