148 MESSES, H. J. ELWES AND JAMES EDWARDS: 



Expanse about 38 mm. Pore wing above with a straight dark band 

 from the costa just before the apex as far as vein 4. Lower lobe 



of clasp long and narrow, rounded at the apex chinensis, n. sp. 



White spot in cell 7 of fore wing not reaching beyond that in cell 6 . . multiguttata, de Nicev. 



! Ctenoptilum vasava. (Plate XXII. figs. 18, 18 a.) 



Achlyodes vasava, Moore, P. Z. S. 1865, p. 786. 



Ctenoptilum vasava, de Niceville, Jour. Bomb. Nat. Hist. Soc. 1890, p. 221. 



Hah. Sikkim [Moller) ; Khasias [Hamilton) ; E. Pegu (Dohertj/). 



! Ctenoptilum chikensis, n. sp. (Plate XXIII. figs. 19, 19 a.) 

 Ctenoptilum vasava, Leech, Butt. China &c. p. 575, pi. xli. fig. 13, J (1893-94). 



Hab. Ningpo, April (Leech) ; Kiukiang, May {Pratt). 



Difi'ers from C. vasava, Moore, in its larger size and in having a dark subterminal band 

 on the fore wing above from the costa just before the apex as far as vein 4, and also in 

 the clasp-form, as may be seen from the figures. 



! Ctenoptilum multiguttata. 

 Ctenoptilum multiyuttata, de Niceville, Jour. Bomb. Nat. Hist. Soc. 1890, p. 221, pi. E. fig. 10, S ■ 

 Hah. Akyab (Adamson) ; Tenasserim (Bingham). 



Odontoptilum. 



Odontoptilum, de Niceville, Jour. Bomb. Nat. Hist. Soc. 1890, p. 217; Watson, P. Z. S. 1893, 

 p. 61. Type sura, Moore. 



Tip of antennee blunt. Male with the fore coxeb heavily scaled and having on the 

 inner side a thick tuft of long straight hairs, somewhat exceeding the joint in length 

 and springing, for the most part, from the base of the joint. In the male genitalia 

 both the clasps and the tegumen are unsymmetrical, the excess of development in 

 both cases being on the right side. The angulation of the hind wing presents three 

 forms: one represented by sura, Moore, and helias, Feld., a second represented by 

 pygela. Hew., and a third represented by leptogramma, Hew. 



The species known to us we separate as follows : — 



1 (4) . Termen of hind wing once angulated, at vein 7. 



2 (3). Male: long hairs clothing the apex of the scapulfe of varying lengths 



and somewhat spreading, not collected into a pencil sura, Moore. 



3 (2) . Male : long hairs clothing the apex of the scapulae subequal in length 



and collected into a distinct pencil lying on each side of the thorax . helias, Feld. 



4 (]). Termen of hind wing more than once angulated. 



5 (6). Termen of hind wing twice angulated, at veins 4 and 7 pygela. Hew. 



6 (5). Termen of hind wing thrice angulated, at veins 3, 6, and 7 . . . . leptogramma, Hew, 



