142 JOURNAL, BOMBA Y NATURAL HISTORY SOCIETY, Vol. XII. 



Apparently uourost to (L boisdarali, uifforiiig tUerofroni in the male in 

 the upperside of both wings being of two shades, dull brown and black 

 instead of forruginous throughout, and in the discal markings of the Ibre- 

 wino- being much larger, whitish, and altogether more conspicuous. The 

 female differs from the same sex of G. boisduvall in having both wings on 

 the upperside mostly creamy-white instead of ferruginous. The only des- 

 cribed species from the Malay Peninsula and India I have not seen aro 

 G. hemeleionj Doherty, from Perak, which has in the male on the upper- 

 side of the forevving a " slaty [bluish] gloss " as in G. symetltus^ Cramer ; 

 the markings also differ in detail ; and 6-'. irroratus, Druce, [y^eete 

 G. hoisduvali, Moore, as G. Irrovatus is a synonym of G. hoisdu- 

 vali], var. assamensis, Doherty, from the Dhansiri Valley, Naga 

 Hills, but that species has only a very small longitudinal pale area around 

 the base of the third median nervule on the upperside of the forewing. 



Taken commonly at Hsipaw, in the Northern Shan States, Upper 

 Burma, from December to February, by Major F. B. Longe, R.E., 

 after whom I have much pleasure in naming it. 



1 may note here that my remark in " The Butterflies of India, Burmah 

 and Ceylon," vol. iii, p. 22 (1890), that in the genus Gerydxis " The males 

 have no secondary sexual characters " is partially incorrect. In my 

 collection the following species in the male have the base of the third 

 median nervule of the forewing swollen and bare of scales : — Gerydus 

 si/mi'thus, Cramer (=Cr. panda, Horsfield), G. leos^ Guerin {-=G. 

 hoisdamlii, Butler, nee G. hoisduvali, Moore, and G. teos, Doherty), G. 

 max'nnus, Holland, G. zmdenii,Fe\dev, G. gopara, de Niceville (probably 

 equals G. Uggsii, Distant ), G. gigantes, de Niceville, G, ancon, Doherty, 

 G. hoisduvali, Moore (=G.irroratus, Druce), G. chinensis, Felder, 

 G.pliilippus, Staudinger, G. cemmensis, Ribbe {==G. acragas, Doherty), 

 G. melanion, Felder, and G. longeana, de Niceville. The following species, 

 which I have not seen, are said by their describers to have the same male 

 secondary sexual character : — Gerydus irrovatus, var. assamensis^ 

 Dolierty, G. gigas, H. H. Druce, G. vincida, H. H. Druce, G. impro- 

 bus, H. H. Druce, and G. luracleion, Doherty. The following species in 

 my collection have the base of the third median nervule of the forewing 

 simple (not swollen) and covered with scales : — Gerydus croton, Doherty, 

 G. gcesa, de Niceville, and G. innocens, H. H. Druce. The absence or 

 presence of male secondary sexual characters in the following species 



