TRIFID^. 189 



Antennas of the male simple, minutely ciliated, dull black ; 

 palpi very small, horizontal, black, but covered on the inner 

 surface with yellow scales ; eyes black, naked ; head very 

 squarely tufted, pale yellow barred with black, and with a 

 black tuft at the base of each antenna ; collar black, divided, 

 and also margined above and below, with yellow ; thorax 

 yellow, with a black stripe down each side of the middle, and 

 another, shorter, on each shoulder-lappet ; fascicles yellowish- 

 white ; abdomen yellow, with a broad cloudy black band 

 across the basal half of each segment; lateral tufts large, 

 yellow ; anal tuft narrow, smoky-black. Fore wings oblong, 

 not broad ; costa very gently arched throughout ; apex rather 

 bluntly angulated ; hind margin hardly oblique, very smoothly 

 rounded ; dorsal margin straight ; colour clear yellow ; a 

 broad black stripe from the middle of the base, and another 

 along the dorsal margiu, run parallel until they unite with 

 a more irregular black transverse stripe in the position of 

 the usual second line ; this last is twice constricted and in 

 some individuals broken in its upper portion ; on the costa, 

 at a short distance from the base, is an oblique black spot 

 followed by two others more rounded ; below these in the 

 discal cell are two more ; a series of three or four black 

 spots, often joined together by black dusting, occupies the 

 usual situation of the subterminal line ; extreme hind margin 

 edged with black dots ; cilia outside the apex white, remain- 

 der purplish-black minutely streaked with white. Hind 

 wings rather broad, with the hind margin sinuous ; smoky- 

 brow u with a purplish gloss, darkest along the hind 

 margin ; cilia white intersected with a brown line. Female 

 similar. 



Underside of the fore wings smoky-black in the middle, 

 costa yellow, with a black spot beyond the middle and another 

 at the apex ; hind margin yellow, with black and white cilia; 

 dorsal margin pale yellow. Hind wings straw-colour much 

 streaked with smoky clouding ; central spot a slender black 

 crescent ; beyond it is a curved irregular smoky-black trans- 



