196 FAUNA SIMALURENSIS : 



island Nias. All the Leptocircinae are to be divided 

 into two real species: curius Fabr. and meges Zinck., which 

 are easy to recognize by the claws. The form of the 

 Philippines is likewise a variety of meges and not a species 

 {corion Gray). 



Description of two varieties, 

 Leptocircus curius Fabr. var. lihelluloides Fruhst. 



H a b. Nias. 



Exp. alar. 25 mM, Anterior-wing exp.: 17 mM. ; apex 

 little rounded. The anterior-margin slightly bent towards 

 the apex ; outer-margin slightly bent inside to media 3 ; 

 inner-margin 9 mM. In the typical curius these measurements 

 are generally larger. The colour is the same as in curius^ but 

 the pattern differs by the yellowish-white line, which is 

 more bent towards the base and narrower near the costa, 

 and by the six little fenestrae, of which the last one is 

 a stip. Near the apex the black margin is broader than 

 in curius. The nerves in the fenestrae of the fore-wings 

 are also more thickly covered with squamae. 



Posterior-wing length : 35 niM., wrinkled and with a long 

 tail (21 mM.) ; the pattern is not so clear as in curius. 



The underside is more yellowish white, the most in the 

 females. The rest of the body is quite the same and so 

 it is not easy to separate these butterflies at a glance. 



In the collection of the Leyden Museum are five males 

 and three females, which latter differ from the males -on 

 the first sight by the rounded fore-wings. 



It is very remarkable, that in this genus the males are 

 more numerous than the females. Among our 67 specimens 

 only 9 are females. 



Leptocircus meges Zinck. nov. var. squamosus. 



Hab. Pulu Babi (near Simalur). 



Exp. alar. 36 mM. — The difference between this specimen 

 and the other ones is so clearly visible, that the plate is 

 sufficient to recognize this form. It is remarkable, that the 

 black coloured squamae have nearly shut the fenestrae, 



ISTotes from the Leyden IMuseum, "Vol. XXXV. 



