io6 LEPIDOPTERA. 



of short black streaks ; often there are elongated black streaks 

 or lines of brown or black dusting between the whiter nervures. 

 Hind wings dusky wiiite. 



Antennae of the male simple, thickly ciliated, light brown : 

 palpi long, very prominent, pale drab ; the maxillary paii- 

 visible as a similar spreading tuft ; head and thorax pale 

 drab ; abdomen rather long, silky whitish-brown. Fore 

 wings narrow at the base, evenly spreading, and rather 

 broad behind ; costa straight or nearly so ; apex angulated : 

 hind margin very faintly curved ; colour pale brownish-drab 

 or yellow-brow^n ; principal nervures paler or white to the 

 middle, where is an oblique transverse stripe of brown or 

 black-brown dusting, often produced strongly toward the 

 base below the median nervure ; beyond is a second oblique 

 transverse line of similar dusting, followed by whitish cloud- 

 ing, or the nervures are continued whiter between the brown 

 dusted ground colour ; cilia pale brown dashed with white. 

 Hind wings broad, rounded behind ; silky smoky white, with 

 still whiter cilia. Female rather stouter, often darker in 

 colour, and strongly streaked with the dark brown dusting ; 

 otherwise similar. 



Underside of the fore wings shining pale drab ; of the 

 hind wings shining white. Body and legs whitish-brown. 



Variable in the ground colour from drab to brown, in the 

 degree of dark dusting or streaks between the nervures, and 

 in the whiteness of the latter, which often is merged into 

 the ground colour. 



On the wing from the end of June till the beginning of 

 August. 



L.iRVA three-fourths of an inch in length, moderately stout 

 and cylindrical; the segments plump and well defined ; head 

 shining brown ; mouth dark brown ; dorsal plate semi- 

 circular, polished, brown, margined behind with darker 

 brown, and bisected by a central dividing grey line; ground 

 colour delicate shining pearly grey, the front of each seg- 



