356 SYNOPSIS OF CANADIAN ARCTIADAE, 
The perfect insect may be taken from early in June to the end of 
July. 
The description given of the larva in the “Smithsonian Synopsis” 
does not exactly agree with that given by Harris, which is as follows: 
‘Length one inch and a half. Color dark greenish-grey ; appearing 
almost black from the black spots with which they are thickly co- 
vered. ‘There are three longitudinal stripes of flesh-white on the 
back, and a row of kidney-shaped spots of the same color on each 
side of the body. The tubercles are dark grey, each producing a 
thin cluster of spreading blackish hairs. It attains its full growth 
in the month of October.” 
Food plants.—“ Plantain and other herbaceous planis. Abbot 
states that they sometimes make great devastation among young 
Indian corn in the Southern States.” 
“Var. a.—Primaries reddish-white, with cuneiform black spots. 
Secondaries red, with black-yellow bordered spots. 
Var. b.—Spots of the primaries much larger, and forming a stripe 
towards the hind border. 
Var. c.—Spots of the primaries still larger, and more inclined to 
form stripes. Spots of the secondaries without yellow 
borders.” 
Var. d.—Secondaries whitish, spots small and without yellow 
borders. 
Hab.—Niagara (Dr. Morris). Toronto (Prof. Croft). Mass. ; 
New York; Illinois; Georgia. 
A. nais!—Drury. Figured in Drury, pl. 7. 
Palpi black. Antenne black above, lighter beneath. Head and 
thorax dull buff, with a brownish tint; thorax with five black spots, 
two small ones in front and three larger on disk, one central and 
one on each shoulder cover. 
Primaries black, with pale ochre stripes ; margins, veins, and their 
branches narrowly striped; central longitudinal stripe wide, furcate 
not far from the base, sending a wide branch to the posterior angle, 
where it is also furcate near its termination; the central stripe is 
again furcate about the apical third of the wing, emitting a wide 
branch, which joins the lower one; a short wide stripe crosses the 
apex, extending from the extremity of the central one to just under 
the costal edge. 
