INTRODUCTORY PAPERS. ON LEPIDOPTERA. 123 
Noctua Dahliit have occurred on the wing, Lobophora sexalata on 
palings, Xylina semibrunnea and X. petrificata at ivy bloom are 
met with in and near the village. 
27, King Street, Covent Garden, W.C., 1879. 
INTRODUCTORY PAPERS ON LEPIDOPTERA. 
By W. F. Kirsy, 
Assistant-Naturalist in Museum of Science and Art, Dublin. 
No. XIII. NYMPHALIDA).—NYMPHALIN &. 
(Species allied to CATAGRAMMA.) 
Catagramma and its allies form one of the most characteristic 
and beautiful groups of Tropical American butterflies; and to 
this district all the genera are exclusively confined. ‘They are 
not large insects, but are remarkable for their brilliant colours 
and markings, and generally frequent damp places in the forests, 
where they frequently settle on the wet ground. 
The genus Callicore includes a number of closely-allied species, 
all of a rich dark-brown or velvety black above. The fore wings 
are crossed by a bar of changeable bluish green, blue, or purple, 
which runs obliquely from the middle of the costa to the inner 
margin before the hinder angle. 'The bar varies much in breadth, 
and the wing is frequently more or less suffused with purple 
towards the base. ‘Towards the tip there is often a small white 
or blue spot. ‘The hind wings are sometimes spotless, but are 
generally marked with a metallic-green or blue submarginal 
stripe ; and are sometimes more or less suffused with the same 
colour within it. The under surface of the fore wings is of a 
rich scarlet towards the base, followed by a curved black band, 
varying in breadth; and the tip is silvery white or buff, inter- 
sected bya black line. The hind wings are silvery white or buff, 
with two oval black rings in the centre, each of which contains 
two black spots, varying in size, and sometimes connected. 
These are enclosed by two large black rings, which run round 
the whole wing, except on the costa, where the circle is not 
complete. 
The genus Perisama much resembles Callicore in shape, the 
fore wings being triangular, and the hind wings rather more oval, 
and generally but slightly denticulated. The largest species 
