^Kma^ dS^^^^^^^^ of some of the Le^ido^tera. 319 
there is a very peculiar pear-shaped scale, not, however, I think, a 
plumule. I notice this genus here in its place because it possesses 
hairs of a bifid form at the apex, of a character similar to some 
which will presently be noticed under the genus Argynnis. 
Lachnoptera. — This genus consists of a single species, " lole ; " 
and its very peculiar scale is shown on Plate XXXY., Fig. 8. It 
was noticed by Doubleday, who regarded it as probably of a sexual 
character, although he had never seen a female ; nor have 1. He 
describes it as " a hair-like scale, terminating in a vane, like the 
feathers of the raquet-tailed humming-birds." 
Argynnis. — Plumules found on fifteen species. They have often 
been noticed by microscopists ; and two were figured in the article 
by Deschamps, to which reference was made in my first paper. 
The type is shown on Plate XXXY., Fig. 9, and Plate XXXVI., 
Fig. 17. Besides these plumules, however, there are found on some 
species some plumule-hke hairs, as shown on Plate XXXVI., Fig. 16. 
Many of the Lepidoptera possess fringes of long hairs, but with a 
simple pointed termination, while these have a large brush at the end. 
I doubt whether they should be regarded as serviceable for specific 
distinction; but further examination is desirable. It is strange 
that I have not succeeded in finding plumules on any individuals of 
the second section of the diurnal species of this genus, nor on any 
of the very closely allied genus " Melitsea" These two genera have 
been much mixed together by entomological classifiers. Will the 
presence or absence of plumules serve for a permanent separation ? 
Athyma. — Plumules have been found on eleven species, a type 
being shown on Plate XXXV., Fig. 10. I have searched in vain 
for them on the closely allied genus Nejotis. There has been great 
difficulty in the generic separation of this group ; but perhaps here- 
after the existence of plumules may aid classifiers with regard to 
the allied genera Athyma, Neptis, and Limenitis. 
Eteona Tisiphone. — This insect, although placed among the 
Nymphalidse in our text-book, belongs no doubt to the family 
Satyridse, as is now generally admitted, and as its plumule would 
serve to prove. 
Thus we see that in the large family NymphaHdse plumules 
have been discovered in but few genera, and those principaUy of the 
sub-family Argynnidae of some authors. 
Families VIII. and IX. Morphid^ and Brassolid^. — No 
plumules. 
Family X. SATYRiDis. — Here we have generally a well-marked 
type, subject, however, to many aberrations. 
Corades. — Found in three species. 
Taygetis. — Found in four species. Plate XXXV., Fig. 11, 
exhibits the form of the plumule of T. Eehecca, reminding us in its 
outline strongly of Pieris Belladonna ; the striae, however, are very dif- 
ferent ; and this group does not possess the bulb-and-socket apparatus. 
