NEPTJ.S.— ATELLA. 207 
sometimes absent, and outside this one or two white spots. Hind wings with one broad white 
band running straight across the centre and divided into seven spots by the nervures. 
Underside marked as above, but the ground-colour is reddish brown, and there are some 
indistinct whitish spots along the hind margin." {Lcint/, I. c.) 
Var. Ind mi l l a. " Rather smaller than the type. It appears to be intermediate between 
N, lucUla and -lV. aceris, the fore wings having a faint basal streak and hind marginal spots ; 
the hind wings also .show traces of a second light band. On the underside these extra 
markings are quite distinct, and the ground-colour is lighter brown than in the type." 
(Lang, I. c.) 
Larva. " According to Freyer reddish brown, yellowish laterally ; four of the segments have 
two thick spines. It feeds on Sjniva salidfolia in June." {Lamj, I. c.) 
This species is represented at Ta-chien-lu aud Wa-ssu-kow, in Western 
China, by a modification of the Indmilla form. In Japan some of the speci- 
mens from Yesso have a larger, and others fi'om Oiwake a lesser, amount 
of white than in typical N. lucilla. Alpheraky * records the hidmilla form 
fi'om Mongolia, and Fixsenf says that both forms occur in the Corea. 
Oberthiir records one specimen from the Isle of Askold. N. lucilla also 
occm-s in Amurland (type and var. Indmilla) and Eastern, Central, and 
Southern Em'ope. 
Genus ATELLA. 
Atella, Doubleday, Geu. Diuru. Lep. i. p. 165 (1848) ; de Niceville, Butt. lud. ii. p. 28 
(1886). 
" Head broad, hairy, the hairs on the crown long. 
" Eyes prominent, nearly round. 
" Pa/pi divergent, ascending, rising considerably above the foi^head. Basal joint very short, 
curved ; second long, broad anteriorly-, very much swollen, scaly and hairy, the outer side 
of the anterior surface with a fringe of very long hairs, the back with a short tuft towards 
apex ; third joint not one seventh the length of the second, acicular, scaly. 
" Anteniuf, fully three fourths the length of the body, terminating in a short but rather 
gradually thickening club rounded at the apex, with its articulations more distinct than 
the rest. 
" Thobax short, rather stout, ovate, hairy ; ahdomen short, rather stout. 
" Fore wittfi subtriangular, the apex slightly rounded ; costal margin considerably arched, one 
half longer than the outer margin, which is equal, or nearly so, in length to the inner, 
and, like the last, slightly cmarginate. Costal rervure stout, extending but little beyond 
the end of the cell. Subcostal nervure slender, lying close to the costal, until the latter 
curves upwards to the costa ; first subcostal nervule arising shortly before the end of the 
* Kom. sur Lep. v. p. 110 (1889). t Ibid. iii. p. 294 (1887). 
