294 
LEMONIID^. 
the figure appears to represent a female. The male only differs from the 
female in the less rounded contour of the wings and the smaller size of the 
pale markings. This seems to be a very rare species ; I have only received 
four specimens (3 (3,1 $ ), which were taken by a native collector on the 
high plateau to the north of Ta-chien-lu. 
Polycsena lama, sp. nov. (Plate XXVIII. figs. 13 c? , 15 $ .) 
JilaJe. Similar ou upper surface to P. princeps, Oberthiir, but the submarginal baud of reddish 
lunules broader aud continued almost to costa of primaries. 
Female. Agrees with the male except that all the niarkings are larger and tawny in colour ; 
the discoidal cell of primaries is also suffused with tawny ; there is a central scries of white 
spots on the secondaries, this character is also usually present in the male. 
Under surface of both sexes very like that of P. princeps, but there is a spot in the discoidal cell 
of secondaries instead of a streak along subcostal nervure ; the female is tawny brown on 
primaries. 
Expanse 37 miUim, 
The markings are subject to some variation in size and definition on both 
surfaces of the wings. The females exhibit considerable variation in the 
amount of brown on the upper surface. The wing-expansion given above is 
the average one, but some specimens are smaller and others, chiefly females, 
attain 40 millim. 
I received the species from How-kow, Pu-tsu-fong, Wa-ssu-kow, and also 
in great numbers from the high plateau to the north of Ta-chien-lu, I have 
specimens which M. Grum-Grshimailo met Avitli it in the Dshachar mountains 
in Eastern Thibet ; these have the submarginal series of reddish lunules on 
all the wings fainter. He also obtained a new species of the genus (P. lua, 
Gr.-Gr.) in the Sinin-Schan mountains and met with P. tamerlana in the 
Boro-Koro mountains. 
Thibet and the Western Chinese frontier appear to be the lieadquarters of 
the genus Pohjccena. 
Polycaena matuta, sp. nov. (Plate XXVIII. fig. IG, 6 .) 
Blackisli l)ro\vn. I'rimiiries with a tawny (luadriito mark in the cell, followed ])y two bands of 
Hpots of the same colour; two apical spots and a submarginal sorios of lunules. Secondaries 
liavc a l)rownisli mark at tlio 1)ase ; a central band of tawny spol.s and a submarginal series 
of lunules of tlic same colour. Fringes aro regularly chocjuerod with white. Under surface : 
I)rimarios tawny, suffused with blackish ; discoidal spot, central and submarginal scries, black ; 
there is a wliitc mark Itelow apex : secondaries black with an al)l)roviated broad white band at 
tliobusc ; a white irregular central band and a tawny lunular sul)marginal l)and ; this latter is 
