48 
CYMATOPHOEID^. 
less acutely crinkled ; the white submarginal line less prominent^ and the border a little paler : 
secondaries slightly paler : prothorax less rufous. Expanse of wings 44-4-7 millim. 
Dharmsala ; July. 
This species will stand between H. derasa and H. indica ; in colouring, though not in 
marking, it is nearer to the latter. 
THYATIRA, Hubn. 
Thyatira batis, imr. cognata. (Plate CXXV. fig. 12.) 
Thyatira cognata, Moore, Proc. Zool. Soc. 1888, p. 406. 
A little duller tlian typical T. batis, and with the central dorsal spot of the primaries 
obsolete, giving the insect nearly the character of T. vidua of Java ; secondaries darker than 
in most examples of T. batis. Expanse of wings 40-45 millim. 
Dharmsala. 
" At sugar, and from larvaj on raspberry ; the larvae found 16th June, pupae 20th. A 
curiously twisting larva.^' 
Although Mr. Hocking's collection contained six examples of this form, all differing 
from the European type in the above noted characters, there was also one example of the 
normal pattern and coloration, showing that although T. cognata is the prevalent form at 
Dharmsala, it is not at present a constant and therefore distinct species. 
POLYPLOCA, Hubn. 
Polyploca orbicularis. (Plate CXXVI. fig. 2.) 
Palimpsestis orbicularis, Moore, Proc. Zool. Soc. 1888, p. 407. 
Nearly allied to P. flavicornis of Europe,, but much browner; the wings more sericeous; 
the inner black line of the central belt of primaries more angular, the four lines across the 
basal area better defined and more irregular ; the discoidal spots smaller and better defined ; 
the secondaries darker and more uniformly coloured; the collar frequently reddish. Under 
surface darker and more uniformly coloured. Expanse of wings 41-43 millim. 
Dharmsala ; at sugar. 
'< Very like Thyatira [batis, var. cognata) in its movements and manner of flight." 
The genus Polyploca was founded by Hiibner for the reception of the single species 
P. xanthoceros—ridens, Fabr. ; it only differs irova. Palimpsestis, subsequently described by the 
same author, in the narrow er primaries of all the species. 
