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THE MAZARINE-BLUE BUTTERFLY. 
Papilio Arion. 
PLATE XXVIII. 
Papilio Arion, Linn. Syst. Nat. ii. p. 789, No. 230,— 
Donovan's Brit. Ins, pl. 184, 
Tue whole upper surface of this insect is of a fine 
deep blue. The exterior margin in both wings has 
a border of deep black; the upper wings a row of 
equidistant, and the under ones a row of triangular, 
blue spots. On the centre of each wing is a lunated 
black spot, betwixt which and the border on the 
upper wings is a row of four oval black spots, and 
on the lower wings, under the lunated spot, is a 
row of similar shaped black spots, six in number. 
On the outside of the black border, is a very narrow 
edge of white, which is fringed. The body is pur- 
ple above ; and the whole under surface of the insect 
is pale brown, studded thickly with black spots. 
The Mazarine Blue Butterfly is a very scarce 
insect in this country ; and it does not appear to be 
much more common in any other part of Hurope. 
We are as yet totally ignorant of its larva. 
