THYEGOEINA. — LACHANA. 
29 
under surface the primaries are white, the costa and discoidal cell slightly tinted with rose- 
red ; the spots of the postmedian series are distinct, and those nearest the costa much 
enlarged : the secondaries are whiter than above, with similar markings : body below white ; 
a tuft at the base of the primaries; the anterior coxie and upper suvEace of femora rose-red; 
tibiae and tarsi greyish brown, but the posterior tibite varied with white ; venter with two 
lateral series of black spots. Expanse of wings 39 millim. 
Kangra valley. 
/S. sagittifera of Moore does not appear to be distinct from S. camjtittii, Kollar, and 
therefore is not described liere. 
THYRGOSINA, Moore. 
Thyrgorina dorsalis. (Plate CXXII. figs. 4, 5.) 
Icambosida dorsalis, Moore, Froc. Zool. Soc. 1888, p. 394. 
Allied to T. rliodophila ; the wings more elongated ; the secondaries of the male m itli a 
grey spot at the end of the cell, those of the female sometimes with three widely separated 
submarginal spots, the first indistinct, subcostal, the second subapical, the third close to the 
outer third of the first median branch ; thorax of male above ochreous, of female white ; 
abdomen of the female with a broad central carmine belt, with dorsal and lateral black spots ; 
the basal and anal segments snow-white ; abdomen of male wholly camnine : wings and bod}^ 
below white ; costa of primaries cream-coloured, not orange as in T. rhodophila. Expanse of 
wings, 36 millim., ? 43-50 millim. 
Dharmsala. 
The Euprepia imperialis of Kollar (collected by Mr. Hocking) has hitherto been placed 
in the genus Areas : in ueuration it is very similar, excepting that the lower half of the disco- 
cellular veinlet is comparatively slightly longer, and the lower radial of primaries and radial 
of secondaries are emitted from the same point with, instead of close to, the third median 
branches ; the antennae, however, are decidedly longer and more closely pectinated, and the 
palpi much longer and coarser in Kollar's sjjecies, which may be separated under the name of 
Melanareas. 
LACHANA, Moore. 
Form and neuration of Phaos; pattern very similar but obscure ; body similar to that ot 
P. huttonii, with a number of long and rather straight pale hairs from the teguloe and abdomen ; 
antennae much more broadly pectinated. Type L. latlakensis. 
In his ' Revision of Australian Lepidoptera,' part 1, Mr. Meyrick has separated two species, 
one of which is P. huttonii, under the generic name of Metacrias ; an examination of the 
