MELIT.EA. 211 
to the third. Claws curvcfl, grooved below. Paronychia hilaciniate, tho outer lacinia 
slender, nearly strap-shaped, longer than tho claw ; inner lacinia about half the length of 
the outer, subtriangular, pointed. Pulvillus two-jointed, nearly as long as the claw. 
" Abdomen moderately stout, arched, not much shorter than the inner margin of the hind wing. 
" Larva subcylindric, rather tapering to tho extremities, tuberculate ; the tubercules covered with 
short setje : or spiny, tho spines set round with hairs. Pupa short, obovate, not angular, 
tuberculate, with tho head rounded ; or angular, witli the head bifid. 
" This genus is difficult to cliavacterizc in tlie perfect state, so as readily to 
distinguish it from Argi/imis ; but there is one important distinctive character, 
namely, that the tarsi of the middle and hind legs are not spiny on tlie under 
surface, whilst they are so invariably in Ar</>/n»is." [iJouhlcday, I. c.) 
Melitaea didyma. 
PapiUo didyma, Esper, Schmett. i. 2, pi. 61. fig. 1 (1780). 
Melitaea didyma, Bremer & Grey^ Schmett. N. China's^ p. 7 (1853) ; Lang, Butt. Eur. 
p. 188, pi. xliv. fig. 6 (1881). 
" Expands from 1'35 to 1-GO inch. All the wings deep reddish fulvous. Hind margins black. 
The male has on the fore wings a row of crescentic black spots running parallel to the hind 
margin, a somewhat irregular central row ; there is a black discoidal mark, almost ring- 
shaped, and some basal spots. Hind wings with a hind marginal row of black spots, and 
some black basal patches and spots. The female is slightly duller in colour, and the fore 
wings have a faint row of spots between the hind marginal aud central rows, and traces of a 
similar row on the hind wings. Underside almost exactly as in Trivia, but not so brilliant 
in colour or so strongly marked ; the apical light patch of the fore wings does not extend 
along the hind margin as in that species." {Lang, J. c.) 
Larva. " Bluish grey, with white dots and black bands ; lateral stripes yellow ; spines white and 
fulvous. Feeds on plantain, &c., from April to June." {Lnng, I.e.) 
Bremer and Grey record this species from the neighbom-hood of Pekin, 
and remark that it is common and very variable. Grum-Grshimailo*met with 
various forms of M. didyma in Eastern Thibet, one of which, var. latonia, is 
described, Horae Ross. 1891, p. 455. 
Staudinger (Rom. sur Lep. vi. p. 183) states that M. didyma and several 
named forms occur throughout Amurlaud, and that Ur. Wulffius met Avith 
the species at Possiet Bay, Corea, and at Port Mai. De I'Orza records it fi-om 
Japan ; but this is probably an error. 
* Melitcea romanovi, Gr.-Gr., and M. sa.vatilis, var. infenialis, Gr.-Gr., are also recorded by 
Grum-Grshimailo from Eastern Thibet. 
2p 
