THANAOS. 581 
T. rmticiCMta, Butler. — " Alie antioce supra basi cinereo-fuscos, lunula nigra apud basim cella 
inclusa, fascia media extus ochrco-pallido intus olivaceo-fusoa lincis nigris marginata et 
divisa, area apicali einerco-fusca fasciis olivaceo-fiiscis varicgata, linea submarginali luuulata 
pallida ; posticoB nigro-fuscse, macula media oblonga brevi ochrea macularumque seriebus 
duabus submarginalium. Corpus nigro-fuscum. 
" Aloe anticse subtus basi fuscesoentes, fasciis duabus fusois obsoletis post ccllam positis et apud 
raarginem interiorem conjunctis, marginc postico linea fusca lunulata submarginato ; posticce 
velut supra. Corpus fuscum. 
" Alar. exp. unc. Ij'g." (Butler, I. c.) 
Pryer states that the larva feeds upon oak. 
Common in most parts of Japan in May. I also took it at Ningpo in 
April, and Pratt met with it at Ichang, Central China. It is fairly plentiful 
in Amurland and Fixsen records it from Corea. 
The only localities in Western China from which I have received 
specimens are Wa-ssu-kow and Ta-chien-lu, where it occurs in May and 
June. The specimens from these places are smaller and darker than the 
type, and the inner edge of the central band of primaries is not indented ; 
the yellow spots on secondaries are smaller, not always well defined, and in 
one specimen almost entirely obscured by the dark ground-colour. This 
form may be known as var. nigrescens (Plate XLII. fig. 2, 6 ). 
Thanaos pelias. (Plate XLII. fig. 3, j .) 
Nisoniades lieJidS, Leech, Entomologist, xxiv., Suppl. p. 60 (June 1891). 
Nisoniades erebus, Grum-Grshimailo, Horse Soc. Ent. Ross. x.\v. p. 4G1 (1891). 
Primaries grey, the basal half thickly, and the outer half sparingly, sprinkled with blackish ; 
there are three transverse black lines, the first is not well defined, the second is slightly 
curved and indented, and the third is serrated ; the space between the second and third lines 
appears to be darker, and there is a white spot on the costa. Secondaries fuliginous, with 
faint indications of a pale transverse line beyond the centre of the wing. Under surface 
fuliginous ; the primaries have a short white macular band from the costa, and the apices 
are tinged with grey ; transverse band on secondaries indicated as above. Fringes dark 
grey, paler towards extremities. 
Expanse, S 36 millim., $ 40 millim. 
Agrees with T. marloyi, Boisd., in size and in the abbreviated band on 
the under surface of primaries, but on the upper surface the markings are 
not very dissimilar to those of T. tagcs, L. 
Var. erebus, Gmm-Grshimailo. " S\ipra alis anticis cinereo-griseis, basin versus obscurioribus et 
fusco mixtis, litura marginali cinerea, ad discum obscurius adumbrata, duabus fasciis trans- 
versis obscure griseis, nigro serrato-marginatis ; posticis nigro-fuscis. 
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