446 L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. [No. 3, 



preceding species in May and September in the same localities. All 

 species of Gerydus and Paragerydus are shade-loving butterflies, and 

 never venture into the direct rays of the sun. With the exception of 

 the three common species, G. symethus, Cramer, G. biggsii, Distant, and 

 P. horsfieldi, Moore, they are only found in deep f orest, mostly restlessly 

 flying round the buds of not very high bushes. They are rather 

 weak on the "wing, but disappear immediately in the forest if par- 

 sued. Both genera can be instantly distinguished by the structure of 

 the legs in both sexes, and both possess three or four minute whitish 

 or ochreous spots on the costa of the forewing on the upperside. 

 These are very prominent in P. psetus, de Niceville, and P. horsfieldi, 

 Moore, less so in P. panormis, Elwes, and just visible only in P. portunus, 

 de Niceville. 



295. Allotinus nivalis, Druce. 



Occurs throughout the year in forest near Selesseh, but is 

 rather rare. 



296. Allotinus alkamah, Distant. 



Distant. Found from Namoe Oekor to the Central Plateau, but is 

 always rare. I do not yet possess specimens of A. subviolacetis, Pelder, 

 from Java, to compare with Burmese, Malayan Peninsula and Sumatran 

 specimens of A. alkamah. It is I think probable that the latter is only 

 a synonym of the former. 



297. Allotinus apus, de Niceville. 



A. apus, do Niceville, Journ. Bomb. Nat. Hist. Soc., vol. x, p. 27, n. 11, pi. S, 

 fig. 17, female (1895). 



Two female specimens only have been obtained at Bekantschan in 

 February, 1894. 



298. *Allotinus major, Felder. 



Hagen. Originally described from Celebes. We have not seen any 

 species from Sumatra agreeing with Felder's description and figure. It 

 is probable that Dr. Hagen identified A. apus, de Niceville, with this 

 species, as superficially they are somewhat similar. 



299. Logania malatica, Distant. 



Originally described from Sungei Ujong in the Malay Peninsula. 



300. Logania sriwa, Distant. 



Originally described from Malacca in the Malay Peninsula. 



