4 ME. a. T. BETHUNE-BAICEB : A EE VISION OP THE 



(J. A. S. B. vol. lviii. pt. 2, p. 409, 1889) that the genus Surendra Moore and a 

 number of species of Arliopala have hemispherical eggs covered with white globular 

 tubercles and triangular reticulations, six of which radiate from each tubercle. 

 De Niceville says (Butt. India, vol. iii. p. 220) " that Mr. P. W. Mackinnon has seen 

 the female of 8. quercetorum laying eggs on a species of mimosa in the Dehra Dun." 



The genitalia in this genus are more of the usual " Lycwna " shape, the tegumen 

 being less ample. The hooks, however, are short and stout, whilst the clasps are not 

 so reduced as in the genus Arlwpala. The penis is long and slender, with the 

 extremity slightly extended (see Plate IV. fig. 1). 



After examining a very considerable series of this genus (nearly two hundred are 

 now before me, and I must have examined nearly double that number) I find it is 

 quite impossible to retain the species described from India, Ceylon, and the Andaman 

 Isles ; they are, without doubt, one and the same variable species, viz. S. quercetorum 

 Moore, and I believe that this name should also give way to S. vivama Horsfield, but I 

 have not sufficient material from Java or Singapore to decide, and I therefore treat 

 them as distinct for the present. In a hundred specimens now lying before me I 

 cannot find one dividing-line, the ground-colour of the males ranging from a bright 

 purplish blue, extending over the greater part of the primaries, to an exceedingly dull 

 violet of small extent ; the pattern of the underside varies likewise, often tending 

 to disappear, these features obtaining in specimens from the same neighbourhood. 

 Then as to the females, Andaman specimens (as also the Javan S. vivama) are 

 entirely dull warm brown ; but I have several specimens from the Khasia Hills that 

 are quite indistinguishable from them, whilst from this locality 1 have also the 

 common form showing the slightly paler discal patch, and one at least which is quite 

 as pale as the average Ceylonese form named by Mr. Moore discalis. The outline 

 of the wings seems equally liable to variation, for I have males from the Khasias 

 with most decided " hook-tips " and others with an almost straight outer margin. 



Turning now to the amisena group, I find, on careful comparison, that Staudinger's 

 types of paloivna (which I have before me) agree precisely with Hewitson's type of 

 amisena, the tail being but little different, but much exaggerated in Hewitson's 

 drawing. Florimel of Doherty has no tail, and therefore I retain it as distinct; it 

 is also bright and has a somewhat different underside. Stimula de Niceville is, without 

 doubt, referable to S. florimel Doherty, as there is no difference except in the larger 

 size of de Niceville's forms. 



SURENDRA QUERCETORUM (Moore). 



Amblypodia quercetorum Moore, Horsfield and Moore, Cat. Lep. Mus. E.I.C. vol. i. p. 42. n. 63, 

 pi. \a. fig. 7, J 1 (1857); Hewitson, Cat. Lyceenidse B.M. p. 14 (1862); id. 111. Diurn. Lep., 

 Lye. p. 14 (1865). 



