58 
PlElilDM. 
liave a broad black border, reaciiiiig from the costa to the hiud 
margin, and having nearly the same width thronghont its whole 
course, — this is distinctly veined with yellow along the nervures ; 
the black discoidal spot is very small, but not elongated as in the 
last species. The hind wings are greenish yellow at the base and 
inner margin ; the black border is narrow and indistinctly veined 
with yellow. The head, antennae and palpi are dull red. Under 
side : — Fore wings orange, with a white central discoidal spot ; the 
hind margin greenish yellow, with three black spots. Hind wings 
greenish yellow, with a pearly discoidal spot, and some reddish 
marks at the base and parallel to hind margins. 
The female, figured in this work from a specimen kindly lent 
me by Mr. E. D. Godman, is brilliant orange, with very broad 
black borders spotted with yellow, the hind wings being very 
dark. 
The specimens in Mr. Godman’s collection, though from 
Persia, almost exactly resemble Meiietries’ figure of a specimen 
taken in the Caucasus at an elevation of 8000 feet (‘ Enumeratio 
Corpor Animal. Musei. Petrop.’ i., 1855, pi. 6). 
M. Lederer describes and figures G. Tliisoa (‘ Annales de la 
Societc Entomologique de Belgique,’ xiii.). His figures greatly 
resemble G. Myrmulonc, of Avhich species he considers it merely a 
variety. The male, however, presents an anatomical difference 
that Lederer appears to have overlooked. I allude to the absence 
of an ovate space immediately beneath the costal nervure of the 
hind wings on their upper surface. This structure is found 
constantly in the males of G. Myrmulone, Ediisa, and other species. 
Its absence in the present species seems to place G. Thisoa much 
nearer to G. Heda or Ghnjsotheme than to any other species. 
Boisduval (Gen. et Ind. Meth.) includes G. Thisoa among 
those species which have a “ glandular sac” on the hind wings of 
the male, though at the time when that catalogue was written 
he had not seen a specimen, and probably had only Menetries’ 
representation of the female to which he could refer. PI. XIII., 3. 
Time of Appearance. — July. 
Habitat. — The Caucasus and Trans-Caucasian Mountain 
regions ; Siberia and the Altai. 
Larva undescribed. 
