1897.] Indo- and Aastro-Malayan Regions. 559 



is more produced, the outer margin consequently straighter ; the second 

 subcostal nervule arises nearer to the first than to the apex of the 

 discoidal cell, in Britomartis it arises nearer to the end of the discoidal 

 cell than to the first subcostal nervule; no third subcostal nervule. 

 The eyes are naked. Type, Britomartis buto, de Niceville, 1. c, p. 308, 

 n. 29, pi. P, fig. 41, male (nee female). 



(1) Bullis buto, de Niceville. 



Britomartis buto, de Niceville, Journ. Bomb. Nat. Hist. Soc, vol. ix, p. 308, n. 29, 

 pi. P, fig, 41, male (nee female) (1895). 



Habitat : Ataran Valley and Daunat Range, Tenasserim, Burma ; 

 N.-E. Sumatra. 



]4. (2) Bullis valentia, Swinhoe, Plate III, Figs. 18, S ; 17, 9 . 

 Tajuria valentia, Swinhoe, Ann. and Mag. of Nat. Hist., sixth series, vol. xvii, 

 p. 358(1896.) 



Habitat : Cherra Punji (Swinhoe) ; Khasi Hills, Assam. 



Expanse : <?, 1-20 ; 9 , 1*15 inches. 



Description : Male. Upperside, both wings differ only from B. buto, 

 de Niceville, in having the blue coloration of a slightly richer and 

 deeper shade and not turning to emerald-green in any light as it does 

 in B. buto. Underside, both wings have the ground-colour of a darker 

 more plumbeous, shade. Forewing has the narrow discal macular band 

 or line straight, not slightly outwardly curved ; it is also more irregu- 

 lar and broken. Hindwing has the marginal black spot in the first 

 median interspace less broadly crowned with yellow of a darker shade • 

 and the short yellow band anterior to the anal lobe is half as broad and 

 therefore further removed from the discal line, and of a deeper shade 

 of yellow. Female. Upperside, both wings dull fuscous ; cilia cine- 

 reous. Forewing has the discoidal cell, the base of the wing, and the 

 disc as far as the inner margin dull blue. Hindwing has the costa only 

 broadly plumbeous or dull fuscous ; the abdominal margin whitish • 

 the rest of the surface dull blue ; a small obscure round marginal black 

 spot in the first median interspace ; a marginal black thread inwardly 

 defined with a still narrower white thread extending from the anal 

 angle as far as the blue area reaches ; the anal lobe small and black 

 bearing outwardly a few dull blue scales. Underside, both wings as in 

 the male. 



Described from nine males and one female kindly sent to me by 

 the Rev. Walter A. Hamilton. The acquisition of both sexes of 

 B. valentia makes it clear that the specimens of B. buto described by me 

 are males and not females. The absence of the " male-mark " which 

 is so conspicuous in Britomartis cleoboides, Elwes, led me to conclude 

 J. n. 71 



