32 ORAXGE TIPPED. 



and the open pathway or riding in the Ayood; in the sunny 

 meadow and the cultivated garden. 



The caterj^illar feeds on the Cardamine impatiens, Tarrltis 

 glabra, Brassica campestris, and other plants. 



The wings expand to the width of from one inch and three- 

 quarters to two inches. Their ground colour is white; the 

 upper Avings are black at the base, and have a black mark, 

 varying in shape, near the centre. The whole of the space 

 between this, and indeed from a little inside it to the tip, is 

 a lovely orange colour, -bordered on the outside corner with 

 brownish black, irrorated with very minute orange specks, and 

 indented on the inner side. The hind wings are also black at 

 the base. Underneath, the fore wings resemble the ujoper, except 

 that there is a little dash of very pale yellow near the base 

 and the dark mark at the tip is exchanged for dull white, barred 

 with dull green. The fore edge has a few small black dots. 

 The hind wings are most elegantly varied with green marks, 

 and yellowish green; the ground colour being Avhite, and some 

 of the veins yellowish. 



The female is without the orange tip; in other respects she 

 resembles the male, but the green underneath is darker. 



The caterpillar is green, finely dotted Avith black, and Avith 

 a Avhite stripe along the side. 



The chrysalis is at first green, Avhich in a fcAV days changes 

 to dull light yelloAvish grey; the stripes being brighter. 



This insect A^aries very much in the extent of the Avings, 

 and also in the size and shape of the black spot on the fore 

 Avings. Stephens describes one Avith the black mark on the 

 fore Avings almost obliterated, and Avith a black spot on the 

 upper surface of the hind wings. HaAVorth mentions one as 

 having the orange mark on the upper surface of the fore Avings 

 almost invisible; and Boisduval another, a female, Avhicli had 

 an orange spot on the under surface of the fore Avings. JNIr. 

 Eobert Calvert, of Bishop-Auckland, has Avritten me Avord of 

 one he has, AAdiich measures only one inch and a quarter 

 across the wings. 



