INDIAN MICRO-LEPIDOPTERA. 751 



accompanied by small raised or projecting black dots : cilia pale "whitish -golden. 

 Hindwings and cilia grey. 



Maskeliya, Ceylon, in February and May ; two specimens (Pole). 



Decadarchis, Meyr. 



Head densely rough-haired, tongue obsolete. Antennae -|, in $ simple, 

 sometimes with subbasal notch, basal joint moderate, thickened with scales- 

 Labial palpi moderate, slightly curved, subascending, second and terminal 

 joints with dense tufted fringe of very long projecting scales beneath, terminal 

 joint short. Maxillary palpi long, filiform, folded. Posterior tibiae clothed 

 with long hairs above and beneath. Forewings with 1 b furcate, 2 from about 

 4, 3 from angle, 6 absent, 7 to custa, 8 absent, 11 from before middle, apex 

 turned up in repose. Hindwings 1, ovate-lanceolate, cilia 1 ; 2-4 parallel, 5 

 and 6 stalked, 6 to costa, 7 parallel. 



I am now able to re-constitute this genus as a good and natural one, well 

 characterised by the peculiar palpi. Besides the type D. simulans, I refer to 

 it the Australian mysUcinella, Walk., and the three following species. 



Decadarchis platydelta, n. sp. 



$ $. 18-27 mm. Head white. Palpi white, externally somewhat mixed 

 with dark fuscous. Antennae whitish-grey. Thorax white, with a fuscous 

 curved mark near posterior extremity. Abdomen whitish or pale grey. Fore- 

 wings elongate, narrow, costa moderately arched, apex acute, termen sinuate, 

 extremely oblique ; white, with a few scattered ochreous and brown scales ; two 

 flattened-triangular dark fuscous dorsal blotches, not reaching half across wing, 

 first extending from near base to before middle, second larger, extending from 

 beyond middle to torn us, enclosing a spot of whitish suffusion; an irregular 

 dark fuscous apical dash, sometimes incomplete: cilia white, with two dark 

 fuscous lines more or less obsolete except round apex, tips suffused with 

 brownish. Hindwings grey, paler towards base ; cilia whitish-grey, more or 

 less suffused with white round apex. 



Ceylon (North Central Province), in November ; four specimens (Pole). 

 Decadarchis anlimicras, n. sp. 



9. 14 22 mm. Head white. Palpi white, externally somewhat mixed with 

 dark fuscous. Antennae whitish, sometimes tinged with dark fuscous. Thorax 

 white, with a curved fuscous mark before posterior extremity. Abdomen 

 whitish. Forewings elongate, narrow, costa moderately arched, apex acute, 

 termen sinuate, extremely oblique ; white with scattered dark fuscous scales ; 

 two triangular dark fuscous spots on dorsum before middle and before tornus, 

 not reaching half across wing ; small oblique dark fuscous spots on costa at \, £, 

 and \ ; a small dark fuscous spot in disc at |, sometimes connected with apex 

 of first. dorsal spot ; an elongate dark fuscous spot before middle of termen, 

 and another at apex ; dorsal and posterior area sometimes much suffused with 

 fuscous: cilia white, sprinkled with dark fuscous, above apex with two dark 

 fuscous lines. Hindwings grey, lighter towards base ; cilia whitish-grey, more 

 or less suffused with white round apex. 



