94 ME. Ci. T. BETHTTNE-BAKER : A REVISION OF THE 



a subovate spot, below which is a very small indistinct one in the lower median angle; 

 transverse band composed of eight spots, the first and second isolated, second shifted 

 outwards, third and fourth shifted right outwards, fifth narrow inwards, sixth outwards, 

 seventh right inwards and confluent with a long eighth spot ; submargiual row fairly 

 distinct, edged inwardly with a light border ; a black spot at the anal angle preceded 

 by a blackish patch almost entirely covered with bright azure-blue metallic scaling 

 which edges the anal spot broadly above. 



2 ■ Upperside : both wings paler violet-blue ; primaries with broad brown costa and 

 very broad outer margin, each increasing towards the apex ; secondaries with very 

 broad brown margins all round. Underside just like that of the male, but rather paler. 

 This species is near agesilaus Stdr., but has rather broader borders above, whilst 

 beneath it is at once recognizable from any of its near allies by the complete absence 

 of any spot just below the costa between the upper basal and the first spot of the 

 transverse band of the secondaries. This is quite a remarkable character. The spots 

 are all smaller and more obscure. 



I have sixteen specimens before me from Borneo and Bilit (a small island off the 

 mainland), and one from Palawan. I dedicate the species to Mr. Cator, who has 

 brought home a good many examples of the genus and has kindly placed them at my 

 disposal. I received it, however, in single specimens from other entomologists, but 

 Mr. Cator brought the majority. 



The genitalia have an ample hooded tegumen with moderately strong hooks that 

 are inclined downwards, the clasps are conical at their extremities; the penis of 

 moderate length, but not quite straight, as shown in figures 8 & 8a of Plate V. 



Arhopala similis Druce. 

 Arhopala similis Druce, Proc. Zool. Soc. Lond. 1895, p. 592. 

 Arhopala anila de Niceville, J. A. S. B. vol. lxiv. pt. 2, p. 469 (1895). 

 Arrhopa/a anila de Niceville, Journ. Bomb. Nat. Hist. Soc. vol. x. p. 6 (1896). 



Hab. Sandakan ; Sumatra ; Salangor. 



Expanse, <s 42-43, ? 44-45 mm. 



d . Upperside : both wings bright blue with a violet tinge ; primaries with a broad 

 blackish costa and posterior margin, each of which increases rapidly towards the apex, so 

 that the apical area is as wide as in the female of most species of the group ; secondaries 

 with broad margins all round, the costa being broadest. Underside as in agesias 

 Hewitson, except that there is no transverse band at all in the primaries. 



2 . Just like the male, except that the blue of the upperside is less violet in tinge. 

 There is no difference in the extent of blue in males and females. The species is very 

 close to agesias, but may be recognised by the absence of the transverse band in the 

 primaries. Dr. Martin obtained it in fair numbers in Sumatra. 



