ailanthus, but wild cherry and plum are also infested. The adult 
is brown with rows of tufts of white hairs on the abdomen and 
has a wingspread of 150 to 200 mm. Full-grown larvae are about 
75 mm. long and have yellowish-green heads and lemon-yellow 
prothoracic segments. The rest of the body is light bluish-green 
to yellowish, dotted with black, and there are long, bluish tu- 
bercles with short bristles on each body segment. Moths are pres- 
ent from June to September; larvae from July to October. Winter 
is spent as pupae in cocoons on the tree or on the ground. 
The cecropia moth, Hyalophora (=sami) cecropia L., occurs 
throughout eastern United States and in southern Canada. The 
larvae feed on a wide variety of hardwoods such as ash, birch, 
cherry, hawthorn, walnut, maple, sassafras, pussy willow, elm, 
poplar, and basswood. Feeding damage is often rather severe in 
shelterbelt plantings in the Northern Great Plains. The moth has 
a wing expanse of 125 to 150 mm. There is a white, crescent- 
shaped spot near the center of each wing, a red-bordered cross- 
band on each wing, and a dark spot near the end of each forewing. 
Full-grown larvae are 75 to 100 mm. long. The head is green with 
two black spots on each side, and the body is pea green. There are 
four, large, coral-red tubercles on the top of the second and third 
thoracic segments, 15 yellow tubercles on top of the first to eighth 
abdominal segments, and blue tubercles on each side. All tubercles 
bear stiff, black bristles. Winter is spent in large, thick, tough, 
gray-brown silken cocoons firmly fastened lengthwise to bare 
branches. Larvae may be found from June to October depending 
on location. The tachinid, Lespesia ciliata (Mac.), is a common 
parasite in the Northeast. 
The promethea moth, Callosamia promethea (Drury), occurs 
throughout most of eastern United States and southern Canada, 
and feeds on a variety of hosts such as ash, wild cherry, lilac, 
sassafras, spicebush, yellow-poplar, maple, and birch. The adult 
has a wing expanse of about 75 mm. The wings of the female are 
reddish-purple to brown with light brown borders, are crossed 
near the middle with a wavy white line; each bears an angular 
white spot near the middle. Each forewing also bears an eyelike 
spot near the apex. A full-grown larva is about 50 to 62 mm. long. 
The head is small and yellow; the body bluish or greenish white. 
The second and third thoracic segments bear four large, coral-red 
tubercles or horns; the eighth abdominal segment, bears a large 
yellow one. Each segment is also ornamented by a deep blue wart 
or button. Winter is spent in a tough, light, colored cocoon en- 
closed in a leaf. The petiole of the leaf is attached to the twig by 
a very strong band of silken threads. 
The luna moth, Actias (=Tropaea) luna (L.), occurs from 
southern Canada to Florida and Texas and has many hosts such 
as beech, birch, persimmon, sweetgum, willow, oak, hickory, black 
walnut, ironwood, and butternut. The adult moth, a very beautiful 
insect, has delicate green wings which expand up to 100 mm. 
Each forewing bears a conspicuous eyelike spot, and is edged 
with a purplish-brown band. The hindwings extend into long, 
curved swallow-tails. The full-grown larva is about 75 mm. long. 
The head is bluish-green with brown on the sides; the body pale 
green with six pinkish or greenish tubercles armed with bristles 
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