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THE PURPLE HAIR-STREAK BUTTERFLY. 
Papilio Quercus. 
PLATE XXXVI. 
Papilio Quereus, Gmelin’s Linn. Sys. Nat. i. p. 2341.— 
Donovan's Brit. Ins. pl. 460.—Hesperia Quercus, Fabri- 
cius, Sp. Hist. ii. p. 118, No. 527. 
Tue wings are of a deep bistre brown, the upper 
ones having a large triangular patch of bright blue 
towards their junction with the body ; the posterior 
margins of both wings are of a pale fawn colour, and 
fringed ; the lower wings have small caudate wings ; 
the under surface is of an ash colour, with three 
macular bands, and an eye-like spot of rich green 
near the lower angle of the under wings ; the body 
is bright yellow beneath. 
The female has no patch of blue on her upper 
wings, and differs, in the colour being more inclined 
to purple, than it is in the male. 
The larva is very fat, of a beautiful rosy colour, 
with a yellow stripe along its sides, and in the middle 
of each annulation is a minute round dot of green ; 
the lower surface is also yellow. It feeds on the oak, 
and is to be found in the caterpillar state in June. 
The chrysalis is glossy, of a ferruginous colour, with 
three dorsal lines of brown dots ; it changes to the 
perfect butterfly condition in July. 
