ODONTOPTILUM. 105 



but quite distinct ; second median nervule given off just before the lower end 

 of the cell ; first median given off slightly nearer to the lower end of the 

 cell than to the base of the wing ; submedian and internal nervures straight. 

 Antennae less than half as long as the costa of the forewing, with a well- 

 formed club and hooked tip ; thorax stout, abdomen 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 furnish- 

 ed 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 type species of Odontoptilum in the genus 

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

 Hubner, with which 0. sura will probably be found to have but slight 

 connection. Mr. Distant placed O. sura in the genus Abaratka, Moore 

 (1881), of which the Pterygospidea ransonnetii of Felder is the type. In 

 that genus the forelegs of the males are furnished with a tuft of long setae 

 which are also found in O . sura, but are very much shorter and much more 

 dense in the latter. The type species of Abaratha 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 neuration or outline of 

 the wings. Mr. Kirby places O.sura in the genus Antigonus of Hubner 

 (1816), of which the nearchus 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 (de Niceville, I. c.) 



153. ODONTOPTILUM SURA, MOORE. 



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



Abaratha sura, Distant, Rhop. Mai., p. 391, pi. xxxiv, fig. 16, <? 

 (1886). 



Odontoptilum sura, de NicSville, Journ. Bomb. Nat. Hist. Soc., vol. v, 

 p. 218 (1890). 



"Male and female vinaceous-brown, palest on the hindwing. Male, 

 forewing dull chestnut-brown along exterior margin, with a black transverse 

 band one-third from the base ; a geminated semi-transparent spot on costa 

 before the apex, surrounded by suffused black ; a semi-transparent lunule 



