84 
This, like the phaeton, forms a web, being gregarious in habit; 
feeding on the underside of the leaves of Sunflower (Actinomeris 
helianthoides), A. squarrosa, and on the Aster. 
Grapta interrogationis, Fabr. The Semicolon Butterfly. 
The length of the full-grown larva is about 1^ inches; the color, 
deep brown. It is cylindrical, and striated with yellowish and whitish; 
all the segments except the second more or less covered with black 
branching spines, yellowish at base; on the second segment a row 
of yellowish tubercles, instead of spines. Head dark red, slightly 
bilobed; on the tip of each lobe there is a tubercle, from which pro¬ 
ceeds short black spines. Found in July and August. Feeds on 
American Elm, Lime tree, Hop vine and Nettle. 
Grapta comma, Harr. 
The young larva is about one-tenth of an inch long; black, and 
covered with short hairs, the colors changing with each molt. The 
full-grown larva is of a yellowish color, and covered with branching 
spines of the same color, tipped with black; on the back is a row 
of three-pronged green spots; along each side a longitudinal pale 
green line. The head is grayish in front, black on each side, and 
is covered with small prickles; on the top of the head are two black 
branching spines. Length, 1^ inches. 
Found on the Hop, Nettle, False Nettle ( Boehmeria ) and Elm; it 
feeds singly, and conceals itself on the under side of a leaf, drawing 
the outer edges together by a silken cord, thus protecting itself from 
the light and heat through the day, and emerging at night to feed; 
as it consumes the leaf by which it is sheltered, it is obliged to 
frequently move its quarters. The chrysalis is suspended from the 
under side of a leaf. 
Grapta faunus, Edu. 
The full grown caterpillar measures 1^ inches in length; the upper 
side of the segments from the seventh to the sixth are brick red, 
striped transversely with blue, yellow and black lines; a few white 
hairs on the second segment; four branching yellow spines with 
black tips, on third and fourth segments; six on fifth and sixth; 
seventh to twelfth segments white, with a faintly marked black dor¬ 
sal stripe; each segment with three transverse yellow bands and two 
oblique black spots; seven branching spines on each segment, viz: 
three on upper surface white, one on side brown, and one close to 
under surface white; last two segments black, twelfth with seven 
spines, five white and two brown; thirteenth segment with four 
white spines; sides of body red with two black lines, the lower line 
spotted with blue. Under surface gray, striped transversely with 
black; feet and pro-legs black. 
Feeds on Gooseberry and Willow, the Willow being its favorite 
food. 
From the chrysalid to the perfect state it requires about thirteen 
days; chrysalis grayish brown suspended from a button of pink 
silk. ' 
