68 
INTRODUCTION. 
species (that of Papilio Protesilaus), is likewise 
clothed with plumose spines, two of which at the 
hinder extremity are much longer than the rest, and 
terminate in an appendage like a star. Equally re- 
markable with any of these is the caterpillar of one 
of the Nymphalid® ( Adolem Aconlhea ), which has a 
series of long filiform bodies projecting from each 
side, thickly clothed laterally with hairs of consi- 
derable length diminishing gradually to the extre- 
mity, which is armed with a few minute spines. 
As might be expected, great diversity likewise 
prevails in the appearance of the chrysalides ; but 
to these it will be more convenient hereafter to re- 
fer, in the preliminary notices to the respective 
genera. One of the most remarkable, however, 
may be mentioned, that of Moi'pho Menelans, which 
has the nasal prominence of the prothorax produced 
into a long curved hom, which extends to the middle 
of the abdomen. In another species of the same 
group, the head is obtuse, projects considerably, and 
is curved upwards at the extremity, exactly like the 
beak of an ancient galley. 
Our acquaintance with the geographical distribu- 
tion of the diurnal lepidoptera was long very im- 
perfect, and it may yet be said to be very far from 
complete. The older naturalists seem to have been 
but little alive to the importance of the subject, and 
even if it had been otherwise, the means they pos- 
sessed for illustrating it were comparatively limited. 
Those who had opportunities of collecting speci- 
mens in foreign countries, valued them merely as 
