TRIFID^. Ill 



marginal cloud broken by diisky-vvhite nervnres ; sometimes 

 there is, nearer to the middle of the wing, a hardly perceptible 

 similar transverse stripe ; dorsal region sometimes white or 

 streaked with white clouding ; cilia white. Female smaller, 

 with the abdomen stouter and the hind wings whiter, other- 

 wise similar. 



Underside of the fore wings smoke colour with the margins 

 and uervures whiter. Hind wings white, dusted along the 

 costal region, and between the hinder nervures, with smoky- 

 brown. Body and legs whitish-drab ; front tibite dull blackish- 

 brown. 



Hardly variable, except in size, beyond the slight details 

 already noted. Mr. P. M. Bright possesses a specimen in 

 which the dots of the second line are not perceptible. 

 Dr. Knaggs has sent me one of quite abnormally small size. 



On the wing from the middle of June through July. 



Larva when full-fed seven or eight lines in length, nearly 

 cylindrical, the fourth to sixth segments being the largest ; 

 the head, second, and anal segments the smallest ; colour 

 dii'ty-white, dorsal line faintly whiter ; second and anal 

 segments darker, inclining to dirty pale brown ; head brown ; 

 spiracles appearing as minute dark punctules ; legs pale 

 brown, a black dot on each proleg. When just from the ^^^ 

 it is whitish with long pubescent hairs and a dark head. 

 (Dr. H. G. Knaggs.) First reared in 1863 by Mr. Henry 

 Nicholls, who found larvte feediDg in the roots of a grass 

 which grows in large tussocks. Early in June he noticed 

 that in these tussocks some of the stems looked sickly, and 

 found that when gently pulled they broke off close to the 

 roots. A close search disclosed either a larva or a pupa. 

 Along with the present species he reared two Miancu fur- 

 uncula. 



End of August till June, on Feshtca arundlnacca, mining 

 its way at first between a leaf and stem of the grass for a 

 short distance, then piercing the next inner layer and again 



