106 PYEALID^. 



Genus THIALLELA. 



Thiallela, Wlk. Cat. xxvii, p. 120 (1863). 

 Leuconia, Rag. Nouv. Gen. p. 7 (1888). 



Type, T. signifera, Wlk. 



Mange. Assam ; Borneo. 



Palpi upturned, the 2nd joint reaching vertex of head, the 3rd 

 well developed and acuminate ; maxillary palpi filiform ; antennae 

 of male ciliated ; hind tibiae with tufts of hair from base and at 

 extremity. Fore wing with veins 4, 5 well separated ; 10 free ; 

 no antemedial ridge of scales. Hind wing with vein 3 from near 

 angle of cell ; 4, 5 approximated for a short distance ; 6, 7 from 

 upper angle, 7 anastomosing with 8. 



4429. Thiallela signifera, Wlk. Cat. xxvii, p. 120. 



Leuconia pallidobasella, Raff. Nouv. Gen. p. 7 ; id. Mon. Phyc. p. 1, 

 pi. xiii, fig. 1. 



Head, thorax, and abdomen brown suffused with grey ; antennae 



of male black. Fore 

 wing yellow-brown ; the 

 basal area suffused with 



^ If^^S/ jS /^> grey and irrorated with 



a few black scales ; a 

 sinuous black medial line, 

 the area on its inner 

 , , side and beyond it chiefly 



yellow-brown, with agrey 

 patch in end of cell, and another beyond the cell extending to the 

 costa and apex; a black discocellular speck and blackish patch 

 beyond lower angle of cell ; a submarginal black line excurved 

 between veins 6 and 2 ; a marginal black line. Hind wing pale 

 fuscous brown ; the cilia grey, with a fuscous line through them. 

 Hob. Nagas ; Borneo. Exp. 24 millim. 



Genus TEPHEIS. 



Tephris, Rag. Mm. Phyc. p. 446 (1893). 

 Cama, Rag. Mon. Phyc. p. 463. 



Type, T. cyriella, Ersch., from Central Asia. 



Range. Transcaucasus ; Persia ; Central Asia ; W. India ; 

 Burma. 



Palpi obliquely upturned, the 2nd joint hollowed out in male to 

 contain the brush-like maxillary palpi, the 3rd joint short and por- 

 rect ; f rons with a conical tuft ; antennae of male with a slight 

 sinus at base containing a large ridge of scales ; tibiae thickly 

 scaled. Fore wing long and narrow ; vein 3 from near angle of 

 cell ; 4, 5 approximated for a short distance ; 10 free. Hind 

 wing with the cell short ; vein 2 from near angle ; 3, 4, 5 stalked ; 

 6, 7 stalked. 



