l'HASSUS. — THYATIRA. 31 



with striae and small spots in outline of dark brown; an oblique tarnished silver dash at the 

 end of the cell ; costal border silver-grey, interrupted by nearly equidistant black-edged dark 

 brown oval spots: secondaries blackish, witli diffused brownish external border and costa, the 

 latter crossed by several dark striai : head and collar golden brown ; remainder of body above 

 darker. Primaries below dark rufous brown; the markings ill-defined, excepting upon the 

 costa: secondaries and body nearly as above. Expanse of wings 150 millim. 

 Silhet. 



Phassus danior. (Plate CIX. fig. 3.) 

 Fhassus damor, Moore, Cut. hep. E.I. Com p. ii. p. 437. n. 989 (1859). 



Primaries above sericeous grey, indistinctly striated with darker lines ; costal border orna- 

 mented with olive-brown spots; an oblique brown bar across the basal third of the cell, almost 

 joining a reversed oblique band terminating in a large patch of the same colour in the centre of 

 the wing ; the upper edge of the latter margined with silvery white, which alone separates it 

 from a t_-shaped marking, also of olivaceous brown, beyond the cell ; two broad bands of slightly 

 paler brown, the first crossing the disk from costa to inner margin and the second marginal : 

 secondaries smoky brown, varied with darker spots towards apex, those nearest to costa being 

 edged with whitish : thorax greyish brown ; tegulae darker brown, with a longitudinal black 

 line ; abdomen fuliginous brown. Under surface fuliginous brown : wings with cupreous 

 reflections ; costal border of primaries whitish, with rounded blackish spots arranged like 

 those of the upper surface. Expanse of wings 87 millim. 



Darjiling. 



CYMATOPHORID^l. 



THYATIRA, Hubn. 



(Gaurena, Walk.) 



There is absolutely no structural character to separate Gaurena from Thyatira, the 

 species of Gaurena having even the little dorsal pencil of hairs common to Thyatira baits and 

 allies. Gaurena was referred by Walker to the heterogeneous group of genera formerly 

 associated as Bombycoiche. 



Thyatira florens. (Plate CIX. fig. 4.) 

 Gaurena florens, Walker, Cat. Lep. Hct. Suppl. ii. p. 620 ( 1865). 



Primaries above bronze-brown, crossed by irregular blackish lines, the first of which is 

 close to the base and ^-shaped, the lower angle being spotted with yellow and the lower 

 extremity with white ; immediately beyond this, upon the median vein, is a white spot ; the 



