64 MR. G-. T. BETHUNE-BAKEE : A BEV1SI0N OF THE 



latter is also a larger insect with a darker underside and a very much less broken-up 

 transverse band. The same characteristics on the underside will separate it also from 

 mindanensis B.-B., but the blue of my species is very decidedly darker and purpler and 

 with broader borders than in myrtale. Tiiese three species are somewhat closely allied, 

 but are, I believe, quite distinct and are easily separable. 



The legend to the plate in the ' Iris' (I. c.) is incorrect : fig. 17 represents myrtale 

 and fig. 16 agesilaus. 



Arhopala aida de Niceville. 



Arhopala aida de Niceville, Journ. Bomb. Nat. Hist. Soc. vol. iv. p. 168. n. 7, pi. A. fig. 1, J 1 ; 

 id. Butt. India, vol. iii. p. 247. n. 802 (1890) ; Doherty, Journ. A. S. B. vol. lviii. pt 2, p. 422. 

 n. 21 ; Druce, P. Z. S. Lond. 1896, p. 666. 



Hob. Burma; Labuan [Druce). 



Expanse, 6 , 44 mm. 



The female of this species is at present unknown. De Niceville describes (I. c.) a 

 female from Mergui, but is evidently doubtful as to its identity and notes certain 

 differences. I have carefully examined his specimens and believe them to be a very 

 strongly marked form of mindanensis, of which I have five specimens from Mindanao ; 

 the female, however, is paler and brighter than my females, and the male is exactly the 

 same above. Aida differs from myrtale Stgr. in its darker and more violet-blue and 

 its broad outer margins ; the undersides are, however, very much alike. 



Arhopala dohertyi, n. sp. (Plate I. fig. 8, 6; Plate IV. figs. 20 & 20 as.) 



Hab. Celebes. 



Expanse, 6 & ? , 38-42 mm. 



S . Upperside : primaries very dark deep blue, slightly violaceous, somewhat irid- 

 escent, with very dark and broad purplish-brown posterior margins, the blue has a very 

 uniform and defined posterior margin following the course of the wing-margin ; costa 

 narrowly dark brown. Secondaries dark brown, with a small deep blue patch occupying 

 the central area of the wing ; abdominal fold greyish brown. Underside : both wings 

 brown, with darker spots lightly encircled. Primaries with three increasing discoidal 

 spots ; beneath the third is rather a large triangular spot ; another small spot just 

 beneath the inner end of the lower median nervule. Transverse chain-like band 

 consisting of seven spots, of which the upper four have the inner edges uniformly 

 curved outwards, but the outer edges of the two lower spots are projected outwards ; 

 the fifth and sixth spots are shifted well inwards and are followed by a smaller spot 

 below the lower median nervule, usually, but not always, shifted slightly outwards ; 

 submarginal row distinct ; extreme margin pale ; submedian area greyish. Secondaries 

 with a small spot at the extreme basal edge of the costa, followed by the four basal 

 spots below each other, the lowest shifted inwards beyond the internal nervure, three 



