NOVITATER ZOOLOGICAE XXII. 1915. 



83 



In the apjiendages it is also distinct from all the other species in the dorsal 

 hooks being short and sqnare-ended. 



B. The bulls section. 



Characterised by having the harjie smooth and iiard. 



The black border nsnally retnrns along the inner margin (except in forms 

 felderi and santaim) of forewing. 



The underside markings, instead of being parallel to hindmargin, are diagonal, 

 pointing to apex of forewing (except in sperthis). 



This is the Section B of de Niceville. It may be tabulated : 



1. Aedeagus about or over 26 mm. to 2'9 ram. in length, 



bulls, with races 



a. felderi. 



b. santana. 



2. Aedeagns about 2-0 mm. in length, 



a. with square end, acuta. 



b. with pointed end, .ipertkis. 



The species as decided by the <S appendages appear to be as follows : 



1. iidis with various named subspecies. 



a. cliscalis. 



b. stigmata. 



c. a race occurring with angulata and hardly separable except by 



appendages. 



d. malayica. 



e. felderi. 



f. santana. 



2. acuta. 



a. dentata. 



b. truncata. 

 0. angulata. 



d. paracuta. 



e. ,, brunnea. 



3. sperthis. 



a. minima. 



The underside of sperthis brings it into relation rather with the thetis 

 than the bulis section, but the upperside and the S appendages indicate that its 

 proper position is rather with bulis. 



The underside markings of bulis and acuta differ as shown in figs. 1 and 2, but 

 there are specimens that it would be difificnlt to place by this character. 



Another very distinctive character is that the pale patches in the female are 

 brown in bulis, white (nr faintly bluish) in acuta ; one item no doubt leading 

 de Nic(5ville to consider the females in this genus were dimorphic in this respect. 

 Another, to be referred to later, was no doubt the brown female oi gloriosa (saronis), 

 supposed to be a form of thetis. 



How far the conclnsions thus summarised are sound must be judged from the 



