1910.] FROM TROPICAL WEST AFRICA. 367 



a crescent -shaped shoi't band composed of pale brown linear 

 markings. The discal area of the hind wing is marked by a 

 number of pale brown striae irregularly placed. The apical area 

 of the fore wing is slightly clouded. Thorax black above, white 

 below. Abdomen black above, dark grey below. Legs white, 

 dusted and spotted with black. Palpi white, terminal joint, which 

 is long and slender, black. Antennas black above, white-spotted 

 below. 



Expanse 1 ^ inch. 



Hab. Bitje, Ja river, Cameroons, 2000 ft., dry season (G. L. 

 Bates). 



Type, Mus. Druce. 



This is a fine insect which has a very straight outer margin 

 and an acute apex to the fore wing. On the under side it 

 is marked much like E. goodii Holland *, which seems to be 

 the same as E. gerina Hewitson f , whose figure is a very poor 

 one. E. nitide is a much larger insect with different shaped 

 wings. 



POWELLANA. 



Powellana Beth.-Baker, P. Z. S. 1908, p. 114. 



POWELLANA COTTONI. 



Foioellana cottoui Beth.-Baker, P. Z. S. 1908, p. 114, pi. ix. 

 fig. 13, 6. 



Female. Upper side : pale brown with a broad white central 

 band common to both wings. Fore wing with a wdiite costal 

 marking above the end of the cell. The basal area of the fore 

 wing and the whole of the hind wing, except the apex and outer 

 margin, are dusted with pale violet-blue scales. Under side as 

 in male. 



Expanse 2 inches. 



Hab. Upper Kasai district, Congo Free State (P. Landbeck). 



Type, Mus. Druce. 



Mr. G. L. Bates sent a good series of this remarkable insect 

 from Ja river, Cameroons, some males showing faint traces of 

 the white central band described in the female. 



Dr. Goclman's collection, now in the British Museum, contains 

 a single female from W. Africa, but the precise locality is not 

 stated. It has been there for many years. 



Batelusia, gen. n. 



Allied to Powellana Beth.-Baker, from which it differs by veins 

 10 and 11 in the fore wing arising directly from the cell, not 

 stalked from a short stalk as in that genus. 



Type, Batelusia zebra, sp. n. 



* Epltola gondii Holland, 'Psyche,' v. p. 424 (1890). 



t Epitola gerina Hew. 111. Exot. Butt., Lye. suppl. p. 19, pi. 1 b. figs. 13, 14 



(1878). 



