294 NOCTULD^. 



1964. Diphthera malachitis, Oberth. Et. Ent. v, p. 80, pi. hi, fig. 9. 

 Canna splendens, Moore, P. Z. S. 1888, p. 412 ; Butl. III. Het. vii, 



p. 59, pi. 128 ; fig. 4. 



Differs from pulchripicta in the white subbasal line of fore wing 

 having green inside it instead of chestnut ; a black and white 

 lunule on base of inner margin ; the fascia on inner margin not 

 extending to base ; no chestnut marginal band ; the apical part of 

 margin whitish, with a black white-centred spot at its lower ex- 

 tremity ; a white patch with black white-centred spot on it above 

 outer angle. Hind wing with a diffused submarginal fuscous band. 



Hab. Askold Island, near Vladivostok; Dharmsala ; Sikhim. 

 Exp. 40 millim. 



1965. Diphthera prasinaria, Wlk. Cat. xxxii, p. 615 : C. $ S. no. 1763. 



Head and thorax emerald-green ; palpi black tipped with white, 

 thoracic tufts black-tipped; abdomen white tinged with fuscous, 

 the dorsal tuft black. Fore wing emerald-green ; a black suffused 

 basal patch with irregularly waved black and white edge ; a broad 

 medial black suffused band with very irregularly waved black and 

 white edges ; the reniform represented hy a diffused white patch ; 

 an irregularly waved submarginal white line with some black on 

 its inner edge : some black specks on costa towards apex ; a black 

 spot on outer margin below apex ; a series of marginal black 

 specks. Hind wing white ; a fuscous band from apex to vein 3 ; 

 the cilia green. Underside whitish, with prominent black bands 

 from costa near apex to vein 3 on each wing. 



Hab. Sikhim. Exp. 38 millim. 



Sect. II. {Diphthera). Patagia not produced ; abdomen with small 

 dorsal tufts on proximal segments. 



1966. Diphthera vigens, Wlk. Cat. xxxii, p. 616 ; C. $ S. no. 1764. 



Head and thorax deep emerald-green ; palpi black ; thoracic 

 tufts black-tipped ; abdomen ochreous suffused with black. Fore 

 wing deep emerald-green, with a black striga from costa near base ; 

 a streak below median nervure ; an antemedial irregularly waved 

 black white-edged line ; orbicular and reniform defined by black 

 lines and incomplete above and below ; a black band between them 

 from costa to median nervure ; claviform represented by a white 

 streak with black specks at each end of it ; a postmedial very 

 irregularly waved black white-edged line with a broad black shade 

 beyond it ; some black specks on costa towards apex ; a series of 

 marginal specks. Hind wing pale green, with an indistinct 

 irregularly waved postmedial line and diffused fuscous submarginal 

 band. Underside green, with diffused medial and submarginal 

 black bands from costa of each wing to vein 4 ; hind wing with a 

 postmedial line. 



Hab. Kulii ; Sikhim; Nagas. Exp. 40 millim. 



