THE CLEAR-WING DRYOCAMPA. 
407 
them is the stigma of Fabricius, or spotted-wing Dryocampa. 
It is of a reddish ochre or deep tawny yellow color; the 
fore wings are tinged with purplish red behind, are thickly 
sprinkled with blackish dots, have a small round white spot 
' near the middle, and a narrow oblique purple-red band be¬ 
hind ; the hind wings have a narrow transverse purple band, 
behind which the border is sprinkled with a few black dots. 
It expands from one inch and three quarters to two inches 
and three quarters. The caterpillar, which I have not seen, 
is figured in Mr Abbot’s work,* where it is colored yellow, 
with black thorns on its back. It is said to live on the oak, 
in swarms, while young, but these disperse as the insects 
grow large. 
The following resembles the senatorial Dryocampa ; but 
is rather smaller, and is a more delicate moth. The color 
of its body is ochre-vellow ; the fore wincrs of the male are 
purple-brown, with a large colorless transparent space on the 
middle, near which is a small round white spot, and towards 
the hinder margin a narrow oblique very faint dusky stripe ; 
the hind wings are pui’ple-brown, almost transparent in the 
middle, and with a very faint transverse dusky stripe; the 
wings of the female are purplish red, blended with ochre- 
yellow, are almost transparent in the middle, and have the 
same white spots and faint bands as those of the male. It 
expands fi’om one inch and three quarters to two inches and 
a quarter, or more, in some females. The distinguishing 
name, given by Sir J. E. Smith,f to this moth, is felliLcida^ 
and we may call it the pellucid or clear-wing Dryocampa. 
I have only once seen the caterpillar, which was found on 
an oak on the 25th of September. It was about the size 
of that of the senatorial Dryocampa, and resembled it in 
everything but color. Its head'was rust-yellow, its body 
pea-green, shaded on the back and sides with red, longitudi¬ 
nally striped with very pale yellowish green, and aimed with 
black thorns. 
• Insects of Georgia, p. Ill, pi. 56. 
t Ibid., p. 115, pi. 58. 
