126 POPULAR ENTOMOLOGY. 



brownish-grey, the base being blue, and the markings 

 nearly similar to P. Corydon, which appears in July. The 

 female is brown above, glossed with blue, with a small 

 black spot on the primary wing, and on the secondary pair 

 a light streak with ocellated spots. 



LEPIDOPTERA. PAPILIONID.E. 



LEUCOPHASIA. 



Generic Distinctions. Antenna, club abrupt and compressed; 

 palpi short and flat, the basal joint large and cone-shaped, the 

 second short and four-sided, the third minute and almost globular ; 

 wings very narrow and oval. 



LEUCOPHASIA SINAPIS. (Plate VI.) Wood White. This 

 is the smallest of our white Butterflies, and has somewhat 

 the appearance of a Dragon Fly ; the colour milk-white ; the 

 base of the wings dusky, and a large brown spot on the 

 anterior pair at the tip ; the under side is faintly tinged 

 with yellowish-green. The caterpillar is green, with a line 

 of bright yellow on each side. It feeds on the Ornithopus 

 perpusillas (bird's-foot trefoil) and Lathyrus pratensis 

 (meadow vetchling). The insect is rather rare : I took 

 only one specimen in Sussex. 



