CO LI AS. 
47 
Times of Appearance. — May to August. 
Habitat. — The South of France, Italy, and Asia Minor. 
Larva not described. 
Obs. — The name Lathyri ought not to be given to this species, 
as that name was bestowed by Hilbner in 1827 on one of the 
varieties of L. Shiapis, mentioned above. Dr. Staudinger has 
given the present species the name of Duponclieli, after Duponchel, 
who first described it in 1882. 
Genus 6 . — COLIAS, Fabr. Illus. Mag. vi. p. 284 (1807) ; Lat. 
Enc. Meth. ix. 10 ; Boisd. Sp. Gen. i. p. 634. 
Butterflies of moderate size, with the margins of all the wings 
without angles or projections, the hind wings being always rounded. 
The prevailing colour of the wings is yellow of different shades, 
varying from greenish to the most brilliant orange. The hind 
margins are always more or less bordered with black, and have 
their fringes red. The hind wings have always on their under side 
a more or less conspicuous discoidal spot of a pearly colour, gene- 
rally surrounded by a reddish circle. The antemiie are short and 
rather thick, swelling into a club at the extremity, and always of a 
red colour. The head is of moderate size ; the eyes are naked and 
tolerably prominent ; the palpi close together and compressed. 
The thorax is rather short. The abdomen moderately stout, and 
not reaching to the anal angle of the hind wings. The sexes are 
always very distinct in appearance. 
The females are smaller than the males, and generally of 
a lighter colour ; they have the black borders of the wings wider, 
though less definite in outline, and decorated with a row of 
light yellow spots. The females of those species whose wings 
are normally of an orange colour are liable to a dimorphic 
condition, in which the wings have the ground tint nearly 
white ; the variety Helice of our British C. Edusa ofiers a 
well-known example of this fact. One meets with a purple 
reflection as a normal condition in some of the orange species, as 
in C. Helclreichi, Aurora, &c. ; in others it is only met with 
occasionally, as in the case of certain specimens of C. Jlcchi, 
Myrinidone, or of Edusa. 
