482 DR. H. J. ELWES, SIR G. HAMPSON, AND MR. J. H. DURKANT [May 1, 



know of no species in which sexual dimorphism exists in the male, 

 and I am thus driven to give a name to an insect of which my 

 knowledge is not sufficiently complete to enable me to describe it 

 properly. 



11. COLIAS FIELDII. 



A large series from Tungu and Gyantze shows a good deal of 

 variation as usual. 



12. Oallerebia waltoni, sp. n. (Plate XXXVI. figs. 14 c? , 

 15?.) 



This is one of the group named Paralasa by Moore, to which 

 shallada, kalincla, and mani belong, but it seems to be sufficiently 

 distinct to be described as a new species. It is smaller than any 

 of the above-named, and above shows only a faint trace of chocolate 

 on the fore wing, where the ocelli are veiy small and sometimes 

 absent ; the hind wing is plain dark brown. Below, the fore 

 wing is chocolate with the apex and outer margin pale fawn- 

 colour, a large apical ocellus with two black spots surrounded by a 

 yellowish ring. Hind wing below pale fawn freckled with darker 

 spots, an indistinct submarginal band, having obscure whitish 

 spots on its outer edge in the same position as those of shallada. 

 Female like the male, but showing more or less chocolate on the 

 fore wing above. 2 S ^i^nd 1 $ come nearer in all characters to 

 C. kalinda, of which they might be considered a small, starved 

 form. 



13. CExEis PUMiLus var. sikkimensis Stgr. Cat. 1901, p. 53. 

 (E. pumilus Elwes, P. Z. S. 1882, pi. xxv. f. 3. 



Numerous specimen.s from Tungu agree with the figure above 

 cited, which has been considered by Staudinger and others 

 sufficiently distinct from the paler form from Ladak and that 

 from the Pamirs and N.E. Tibet [pcdcea7'cticus Stgr.) to require a 

 varietal name. 



14. CoENONYMPHA siNicA Alph. Stett. ent. Zeit. 1888, p. 66. 



A few taken at Chaksam on the Brahmaputra River at 

 12,000 feet on July 30 agree with those in Leech's collection 

 from near Ta-tsien-lu, 



1 Argynnis pales var. sifanica Grlim, Hor. Soc. Ent. Ross. 

 xxv. p. 456. 



Four specimens from Tungu agree with two previously received 

 by me from Alpine Sikhim, where it seems to be rare, and belong 

 to a race which occurs in Eastern Tibet near Ta-tsien-lu and at 

 Amdo in N.E. Tibet, so named by G-riim. 



16. Argynnis lathonia var. is^ea Elwes {ex Gray), Trans. Ent. 

 Soc. Lond. 1885, p. 556. 



A few specimens of the usual Himalayan type. 



