BLACK VEINED. 17 



and Combe Wood, Surrey; Enborne Copse, near NewburVj 

 Berkshire, the residence of the famous "Jack of Newbury;" 

 Chelsea, Middlesex; Muswell Hill and Heme Bay, Kent; and 

 Glanville's Wootton, near Sherborne, Dorsetshire, are also given 

 as localities for it; but I believe it is no longer found in the 

 last-named situation. 



The caterpillar feeds on the Avhitcthorn, f Cratcegus oxyacantha,) 

 the cherry pear, the Prunus spinosa, and other fruit trees. 



This Butterfly varies in size from about two inches and a 

 quarter to nearly three inches : all the four wings are of a dull 

 milk-white colour, elegantly, at least in the eye of the entomo- 

 logist, streaked over with the black veins from whence the insect 

 derives its name; they shew through, the wings being semi- 

 transparent, so that the under side resembles the upper in its 

 markings and general appearance. 



In the female the veins of the fore wings are generally of a 

 brownish hue; and in one specimen that I have, the outer edge 

 is bordered with a very deeply indented line of blackish brown, 

 the indentations running up the veins to a point, but all united 

 too-ether at the outside. 



The caterpillar is at first black, but becomes afterwards 

 thickly covered with whitish hairs, and on the sides and un- 

 derneath is of a dark grey colour, with two longitudinal stripes 

 of red or yellow. 



The chrysalis is greenish white, "vvith two streaks of yelloAV 

 on the sides, a number of black dots, and a few black streaks. 



