34« 
THE STUD V OF INSECTS. 
The Rosy-striped Oak-worm, Anisota virginiensis (A. vir- 
gin-i-en'sis).—The wings of the female are purplish red, 
blended with ochre-yellow; they are very thinly scaled, and 
consequently almost transparent; and are not speckled with 
small dark spots (Fig. 426). The wings of the male are 
Fig. 426 .—Anisota virginiensis % female. male. 
purplish brown, with a large transparent space on the middle 
(Fig. 427). The larva is of an obscure gray or greenish color, 
with dull brownish yellow or rosy stripes, and with its skin 
rough with small white warts. There is a row of short spines 
on each segment, and two long spines on the mesothorax. 
The Orange-striped Oak-worm, Anisota senatoria (A. sen- 
a-to'ri-a).—The wings of the female are more thickly scaled 
than in the preceding species and are sprinkled with numer¬ 
ous blackish dots ; in other respects the two are quite similar 
in coloring. The male differs from that of A. virginiensis 
in lacking the large transparent space on the middle of the 
wings. The larva is black, with four orange-yellow stripes 
on the back and two along each side; its spines are similar 
to those of the preceding species. 
The Spiny Oak-worm, Anisota stigma (A. stig'ma).—The 
female closely resembles that of A. senatoria; and as both 
species are variable it is sometimes difficult to determine 
to which a given specimen belongs. In A. stigma the wings 
are rather darker and have a greater number of blackish spots, 
and the hind wings are furnished with a middle band which 
is heavier and more distinct than in A . senatoria . The male 
differs from that of the other two species in quite closely 
