138 PYEALTD^E. 



smooth, the spurs long. Fore wing with the outer margin excised 

 below apex ; vein 2 absent ; 3, 4, 5 stalked ; 6 from upper angle ; 

 7, 8, 9, 10, 11 stalked. Hind wiug with vein 3 from angle of 

 cell ; 4, 5 stalked, or 3, 4, 5 stalked ; 6, 7 from upper angle. 



Sect. I. Hind wing with vein 3 from angle of cell. 



4501. Petta costastrigalis, n. sp. 



Pale ochreous, irrorated and suffused with red-brown ; head and 



palpi above white. Fore wing 

 with pairs of oblique white 

 streaks on costa forming sub- 

 triangular marks ; an obscure 

 dentate antemedial line ; a 

 diseocellular black spot ; an 

 obliquely sinuous postmedial 

 line bent inwards above vein 1 ; 



Fig. 77.— Petta costistrigalis, <$. f. a dark apical patch. Hind 



wing whitish, with indistinct 

 sinuous submarginal line ; both wings with fine sinuous lines on 

 margin and cilia. 



Hal. Ceylon {Green). Exp. 14 millim. Type in B. M. 



Sect. II. Hind wing with veins 3, 4, 5 stalked. 



4502. Petta alternata, Warr. A. M. N. H. (6) xvi, p. 469. 



<S . Grey, much irrorated and suffused with black-brown ; 

 frons white: abdomen ringed with white. Fore wing with two 

 subbasal whitish lines excurved at middle ; three triangular white- 

 edged black marks on costa ; both wings with submarginal white 

 line angled on veins 5 and 2, then bent inwards to middle of inner 

 margin ; a sinuous black line just inside the margin and a 

 marginal line. Hind wing paler. 

 Hal. Khasis. Exp. 12 millim. 



Genus TRICHOPHYSETIS. 



Triehophysetis, Meyr. Trans. Ent. Soc. 1884, p. 287. 

 Callinai'as, Swinh. Trans. Ent. Soc. 1890, p. 286. 



Type, T. cretacea, Butl., from Japan, Australia, Norfolk Island. 



Range. Japan : Assam ; Ceylon ; Burma ; Australia ; Norfolk 

 Island. 



Palpi porrect, about twice as long as head, and thickly tufted 

 with hair, the 3rd joint hidden. Maxillary palpi with a long 

 pointed tuft of hair from extremity extending nearly as far as the 

 labial palpi ; frons rounded ; antennae thickened and flattened ; 

 legs with the spurs long and equal. Pore wing with the apex 

 rounded ; veins 3, 4 from angle of cell ; 5 from above angle ; 7, 8, 



