198 Mr. A. G. Butler on Lepidoptera 



71. Terias suava. 



Terias suava, Boisduval, Sp. G6n. L^p. i. p. 670. n. 28 (1836). 



(J. Campbellpore, 8th May; Abbottabad, 1st October, 1886. 



Amongst specimens of Terias recently presented to the 



Museum is a small male of T. silhetana, Wallace, taken by 



Major Yerbury at Noor Poor Shahan, near Rawul Pindi, on 



the 10th April, 1887. 



72. Terias purr eea. 

 Terias purreea, Moore, Proc. Zool. Soc. 1882, p. 252, 



S . Akhor, 22nd April ; Hassan Abdal, 9th May ; c? ? . 

 Khairabad, 23rd May ; ^ . 6th June ; Campbellpore, 30th 

 May and 21st October; ?. Thundiani, 12th September; 

 Hurripur, 14th October, 1886. 



The female obtained at Campbellpore in October was taken 

 in coitu with a typical male T. hecahe, another proof of the 

 readiness with which distinct species of the Colias group of 

 genera will pair together. Both sexes of T. purreea can be 

 distinguished easily from the corresponding sexes of T. hecabe^ 

 and until some reliable lepidopterist can settle down to care- 

 fully rear each species of Terias from eggs which he has 

 seen deposited upon plants strictly confined in such a way as 

 to prevent all intrusion of other species, I shall continue to 

 believe in the possible constancy of the various forms. As 

 regards Mr. Pryer's experiments in Japan, he has himself 

 proved their untrustworthiness by recording his belief that he 

 has reared T. Iceta (an Indian species) from eggs laid by T. 

 hetheseha, and, still further, that one of the pupge from the 

 same batch of eggs produced the almost generically distinct 

 T. hecahe^ which individual of the batch he says he is " led to 

 believe is a hybrid," What Mr. Pryer means by expressing 

 his faith in anything so utterly impossible I leave hira to 

 explain ; meanwhile I candidly confess my inability to rely 

 upon his experiments. 



73. Terias fraterna. 



(S . Terias fraterna, Moore, Journ. Linn. Soc, Zool. 1886, p. 46, pi. iv. 

 fig. 6. 



$ . Hassan Abdal, 14th October, 1885. 



It seems probable that this insect, which is intermediate 

 between T. purreea and T. hecabe^ is a hybrid between the 

 two species. 



74. Terias hecahe. 

 Papilio hecahe, Linnseus, Mas. Lud. Ulr. p. 249 (1764). 

 $ . Hassan Abdal, 22nd July ; c? ? • Thundiani, 12th and 



