125 
it and the head. Head and six anterior feet clay-yellow or bright 
brown. Anal segment edged with purple. Stomata oval, brown en¬ 
circled by yellow. y 
The colors vary considerably in the different stages of its growth. 
At first it is yellow, becoming'greener as it increases in size; in 
the second stage the tubercles are thick, slightly bell-shaped, green at 
base, yellow in the middle and orange-red at top. 
Feeds on Oak, Walnut, Hickory, Basswood, Elm, Maple, Hazel, 
Apple, Rose, Quince, Thorn, Choke-cherry, Poplar, Sycamore, 
Birch, Honey-locust, Blueberry and Willow, 
Attacus (Samia) CYNTHIA, Drury. 
This larva when full grown is of a light bluish-green with two 
dorsal, two sub-dorsal and two lateral rows of tubercles which are 
blue, the lateral rows having black at the bases. The body has 
numerous spots of dark green which are most distinct laterally and 
ventrally. There are also six longitudinal rows of black or blue- 
black spots, Head and anterior legs yellowish-green; pro-legs and 
anal joint orange-yellow. 
It feeds on Ailantlius and Plum. 
Attacus promethea, Drury. 
This is a pale bluish-green larva cov¬ 
ered with a faint whitish bloom except 
at each end; and with six rows or tu¬ 
bercles. The four dorsal ones on the 
second and third segments and one on 
the eleventh, are very large and promi¬ 
nent while the others are mere polished 
black or blue-black rounded elevations; 
the four on segments two and three are 
first yellow with a black base, but soon 
become red; that on segment eleven re¬ 
tains its yellow color and black base. 
The true legs and the anal shield are 
yellowish; pro-legs yellow with a black 
spot on the outerside of each. Often 
there is a black spot on each side of 
the venter. Stomata narrow and brown. 
Length when extended, more than 2 
inches. 
It feeds on the Ash, Sassafras, Wild 
Cherry, Tulip-tree, Sweet-gum, Spice- 
bush ( Lindera ), while in addition to these 
its cocoons have been found on the Li- 
Fig. 38 .—Attacus promethea. Larva. Maple, Plum, Poplar, Azalea, Ceph- 
alanthus, Snowdrop-tree ( Halesia ), .Barberry, Birch and Bayberry 
( Myrica ). 
