218 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1890. 



of the forewing, with a well-formed club and hooked tip ; thorax stout, 

 a i hi (omen rather stout, not nearly as long as the abdominal margin of 

 the hindwing. Sexes alike, male with no secondary sexual characters 

 on the wings, but the fore legs are furnished with a very thick tuft of 

 hairs attached to the anterior end of the coxa, the hairs being slightly 

 longer than that joint. Type, " Achlyodes " sura, Moore. 



Mr. Moore placed the tj r pe species of Odontoptilwm in the genus 

 Achlyodes, Hiibner (1816), of which the type is the South American 

 fredericus, Hiibner, with which (J. sura will probably be found to 

 have but slight connection. Mr. Distant placed 0. sura in the genus 

 Aharatha, Moore (1881), of which the Ptenjgospidea ransonnetii of 

 Felder is the type. In that genus the fore legs of the males are 

 furnished with a tuft of long setae* which are also found in 0. sura, 

 but are very much shorter and much more dense in the latter. The type 

 species of Aharatha and Odontoptilum differ also in the shape of the 

 discoidal cell of both wings ; in the former in the forewing the middle 

 disco-cellular nervule is upright, and therefore forms an obtuse angle 

 with the inwardly oblique lower disco-cellular; in the latter the two 

 veins are in one straight line; in the hindwing of the former the 

 lower disco-cellular is quite upright, thus forming an angle with the 

 upper outwardly oblique disco-cellular, in the latter both are in one 

 straight line and are outwardly oblique. Otherwise there does not 

 appear to be much difference between the two genera either in neura- 

 tion or outline of the wings. Mr. Kirby places 0. sura in the genus 

 Antigonus of Hiibner (1816), of which the uearchus of Latrielle from 

 South America is the type. It is very improbable that this species 

 either is congeneric with sura. 



The genus Odontoptilum occurs all along the outer ranges of the 

 Himalayas, in South India, in Assam, Burma, the Malay Peninsula, 

 Sumatra, Borneo, Celebes, the Philippine Isles, and China. They rest 

 with wide outspread wings. 



(1.) Odontoptilum sura, Moore. 



Achlyodes 'if sura, Moore, Horsfield and Moore, Cat. Le p. Mus. E. I C, vol. i, p. 

 251, n. 5G9 (1857) ; Achlyodes sura, Moore, Proc. Zool. Soc. Lond., 1865, p. 786 ; 

 Antigonus sura, id., Journ. Linn. Soc. Lond., Zoology, vol. xxi, p. 53 (1886); id., 

 BJwes and de Niceville, Journ. A. S. B., vol.lv, pt. 2, p. 441, n/165 (1886); id., 



* Vide Journ. Bomb. Nat Hist. Soc, vol, iv, p, 175 (IS8U). 



