40 THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. 
male, as above stated, having only four legs fitted for walking, and the female six. The Cater- 
pillar is onisciform, or woodlouse-shaped. The Chrysalis is attached by the tail, and also se- 
cured by a loop round the middle. 
Nemeobius Lucina (the Duke of Burgundy Fritillary, No. 5) is the Hamearis Lucina of 
Hitbner, but Mr. Stephens’s name Nemeobins will be preferred, in consequence of the new and 
more appropriate location of the insect in its present position by that accomplished entomolo- 
gist. Mr. Curtis has quoted the following interesting description of the transformation of this 
pretty little Butterfly from the elaborate and accurate work of Hiibner :—“ The eges are found 
solitary, or in pairs, on the under surface of the leaves of Primula veris, and clatior at the he- 
ginning of summer ; they are almost globular, smooth, shining, and pale yellowish green. The 
Caterpillar feeds on these plants ; its head is roundish, heart-shaped, smooth, shining, and bright 
ferruginous, black only on the mouth and about the eyes: its body is almost oval, but long, de- 
pressed, and set with rows of bristly warts ; the other parts are set with feathery hairs ; on the 
back, at least from the fourth joint to the tail, there is a black dot on each joint, and on the 
sides similar but less distinct spots, the colour is pale olive orange ; its feet are rusty brown ; 
the spiracul black ; the claws and belly whitish. It moves very slowly, rolls itself up when 
disturbed, and remains in that state a long time. Soon after the middle of summer it becomes 
a pupa, not only fastening its body by the apex, but also by spinning a cord across its middle ; 
” 
in this state it remains until the end of the following spring.” Hiibner, who reared it from the 
egg, says also that the Caterpillar throws off five skins before it becomes a pupa, and its ap- 
pearance, at different ages, varies considerably. The larva from which he made his drawing, 
and from which my representation (No. 5) is taken, he found on a Primula in his own garden. 
This pretty insect is not uncommon in the south of England, but more rare in the north. At 
Halton in Buckinghamshire it has recently appeared in great numbers ; and Brighton, Oxford, 
Plymouth, Winchester, and Dursley in Gloucestershire are cited as localities in which it is not 
unfrequent ; while even at York and Lyndhurst, in the north, persevering collectors have suc- 
ceeded in taking it in some plenty. 
