98 ME. G. T. BETHTJNE-BAKEE : A EEVISION OF THE 



Akhopala deva Bethune-Baker. (Plate V. figs. 11, 11 a.) 

 Arhopala deva Bethune-Baker aud Druce, P. Z. S. 1896, p. 669, pi. xxxi. fig. 3. 



Hab. N. Borneo. 



Expanse, 6 & 2 , 40 mm. 



Mr. Cator brought home a considerable series from Borneo, in which the females 

 predominated largely. I am inclined to think that it replaces antimuta Feld. in North 

 Borneo. 



The genitalia are very unnsnal ; the tegumen is very ample, hooded, and excavated 

 in the centre, the hooks are stont with a slight downward curve, the tips very slightly 

 spatulate ; the clasps are large, excavated in the centre of the upper margin and also 

 the outer margin, so as to make the upper extremity pointed ; the inner portion of the 

 clasps near the outer margin is studded with short spikes ; the penis is long, irregular, 

 with a globular orifice, the lower lip of which protrudes. 



Arhopala antimuta Felder. 

 Arhopala antimuta Felder, Reise Novara, Lep. vol. ii. p. 233. n. 26 (1865). 



Amb/i/podia antimuta (?) Butler, Trans. Linn. Soc. Lond., ser. 2, Zool. vol. i. p. 548. u. 8 (1877). 

 Nee Narathura antimuta Distant, Rhop. Malay, p. 266, pi. xxiii. fig. 11, $ (1885). 

 Arhopala antimuta de Niceville, Butt. Ind. vol. iii. p. 277 (1890). 



Arhopala davisonii de Niceville, Butt. Ind. vol. iii. p. 280, frontispiece fig. 135, S (1890). 

 Arhopala antimuta Druce, Proe. Zool. Soc. Lond. 1895, p. 593. 



Arrhopala davisonii de Niceville and Martin, J. A. S. B. vol. lxiv. pt. 2, p. 469 (1895). 

 Nee Arhopala antimuta, iid. loc. cit. 



Hab. Malacca ; Singapore Straits ; Perak ; Burma ; Tenasserim ; Borneo ; Mergui. 



Expanse, 3 & 2 , 38-40 mm. 



I have carefully compared the Felderian type with all de Niceville's specimens of 

 davisonii de Niceville, and find that they are identical. From deva mihi it may be 

 separated by its darker and bluer colour (deva is bright purplish), and the shape of the 

 wings is different, being narrower, the apex sharper and outer margins less rounded 

 than in my species ; beneath the transverse bands are different, and my species is very 

 spotted, the transverse bands being composed of distinct spots. From hypomwta Hew. 

 it differs in like manner as to colour ; hypomuta is bright purplish blue, with exces- 

 sively fine linear margins ; beneath Hewitson's species is also very much more spotted 

 in pattern, and particularly so in the transverse bands. 



Antimuta is apparently one of the commonest species in Sumatra, and Mr. Doherty 

 considers it one of the most ubiquitous insects in the Malayan regions, and he says it 

 is abundant in Borneo ; I am, however, inclined to doubt this latter statement. I have 

 not seen a dozen specimens from that locality, and Mr. Cator, who evidently collected 

 somewhat assiduously there, did not bring home from British North Borneo a single 

 example ; he, however, took a number of deva mihi, and I expect this is the species to 



