128 WOOD WHITE BUTTERFLY. 



outer half of the wing is deeply tinged with orange 

 in the male, but there is no trace of that colour in 

 the female. The hinder wings are alike in both 

 sexes ; on the upper side they are dusky at the base, 

 the outer margin bears a few blackish points, and 

 the surface presents faint traces of the markings on 

 the under side ; the latter consist of irregular mar- 

 morated spots of green, powdered as it were with 

 yellow. The antennae are white, with dark rings. 



The caterpillar feeds on several cruciferous plants, 

 especially those of the genus Cardamines ; also on 

 Turritis glabra, Brassica campestris, &c. It is of 

 a green colour, with a whitish line along each side, 

 just above the insertion of the legs. The chrysalie 

 is also greenish-yellow. 



WOOD WHITE BUTTERFLY. 



Leucophasia Sinapis. 

 PLATE X. FIG. 3. 



Pap. Sinapis, Linn. Donovan* vii. pi. 280. Pontia Sin?,- 

 pis, Leach, Jermyn. Wood White, Harris'' Aur. pi. 23. 

 Leucophasia Sinapis, Steph Leucoph. Loti, Rennie. 



THE present genus (named from Asuxo?, white, 

 And Vans, an apparition or appearance), is distin- 

 guished by the structure of the palpi, which are 



