582 HESPEEIID^. 
" Subtus alis nigro-fuscis, anticis costa apiceque griseo-atomatis, punctis tribus subcostalibus 
mimisculis albis ornatis. Fimbria obscure grisea. <S 2 15-16 mm."' (Gr.-Gr.,l. c.) 
M. Grum-Grshimailo sent me specimens of his ' y.' erebus from. 'Sian-sha.n ; 
they are smaller than the majority of the specimens of T. pelias and rather 
paler and browner in colour. In markings, however, they are identical, and, 
seeing how very trifling the differences are, the Nian-shan examples seem 
hardly worthy of a varietal name, unless it should be ultimately found that 
no intermediate forms occur. 
T. pelias is not uncommon at Ta-chien-lu and Wa-ssu-kow in the months 
of June and July. 
Genus ISOTEINON. 
Isoteinon, Felder, Wien. ent. Mon. vi. p. '60 (1862) ; Watson, Pioc. Zool. Soc. Lond. 
1893, p. 83. Type, lamprospilus, Felder. 
" Genus Cyclopidi, Hiibn., Led., accedens, antenuis multo longioribus, fere ut in Pterygosindtis 
clavatis abdominequc alas posticas baud superante praesertim discrepat." {Felder, I. c.) 
" Antennae : club moderate, elongated, terminal crook short, tip acuminate. Palpi : second joint 
densely clothed with short scales ; tJiird joint erect, reaching well above the vertex of the 
head, slender, obtusely conical. Fore wing : inner margin considerably longer than outer 
margin ; cell less than two thirds the length of the costa ; discocellulars erect ; vein 5 
slightly nearer to 4 than to 6 ; vein 3 close to end of cell ; vein 2 about equidistant from end of 
cell and base of wing in the male, considerably nearer to base of wing in the female. Hind 
wing narrow ; vein 7 shortly before end of cell; discocellulars and vein 5 faint, but distinctly 
traceable : vein 3 immediately before end of cell. Hind tibite sparsely clothed with hairs 
and with two pairs of spurs. No secondary sexual characters on the wings. 
" Many Indian species have been put into this genus ; none of those, 
however, which I have been able to examine belong to it, the direction of the 
third joint of the palpi alone readily distinguisliing them. This genus 
appears to be allied to Eyarotis, Moore. 
" Habitat. China and Japan." [Watson, I. c.) 
Isoteinon lamprospilus, 
Isoteinon lamprospilus, Folder, "Wieu. eut. INlou. vi. p. 30 (1802). 
Pa7nphila vitrea,MuTra.y, Ent. Mo. Mag. xi. p. 171 (1875). 
Pamphila lamprospilus, Pryer, Rhop. Nihon. p. 33, pi. x. fig. 8 (1889). 
" Alis albido ciliatis, linea marginal! ochracea, omnibus supra fuscis, anticis utrinque maeulis 
tribus discalibus punctisque totidem connatis subapicalibus hyalino-albis, macula interiore 
argenteo-alba, subtus anticarum limbo costali posticarumque pagina tota ochraceo-brunnes- 
