58 LF.rmOPTERA. 



and this by two or three more, very slender and obscure, 

 undulating and indented stripes ; cilia creamy white. PVmale 

 very similar, but with its body shorter. 



Underside of all the wings silky white, the costal half of the 

 fore wings tinged with smoky-brown, and the transverse lines 

 similarly but faintly indicated ; hind wings hardly e.xliibiting 

 any trace of markings. Body silky-white ; legs pale brown. 



Usually only variable in the distinctness of the transverse 

 lines, the central and second of which and their continuations 

 on the hind wings being sometimes so conspicuous in their 

 undulating and parallel appearance as to impart quite a special 

 character to the insect. Occasionally the basal area to the 

 first line is faintly clouded with brown ; in specimens in 

 W\\ Sydney Webb's collection the space between the central 

 and second line is clouded with greyish-brown ; and in others 

 these lines are drawn so close together as almost to coalesce. 

 Some of those from Morayshire, in Mr. Percy M. Bright's 

 cabinet, are clouded with grey, or have these lines shaded 

 with the same, or with smoky-grey, and the central line 

 broadened into a distinct dark stripe ; others in Mr. R. Adkins' 

 collection are much suffused with smoke-colour. 



On the wing in the latter part of -May, and in June. 



Lakva somewhat rough to the touch, slender, rather 

 luiit'urmly cylindrical ; and of nearly equal thickness 

 throughout ; head of the same width as the second segment, 

 and notched on the crown; the face fiat; skin finely ribbed 

 transversely, both on the back and beneath ; segmental 

 divisions not very conspicuous ; head light brown, variegated 

 with darker, and with a black V-shaped mark, the apex of 

 which is pointed upwards, on the upper part of the face ; 

 ground colour of the body dark olive-brown, approaching to 

 dull black on the undersurface ; dorsal stripe formed of a 

 very narrow, interrupted and indistinct greyish line; there 

 are no perceptible subdorsal lines, but along the spiracles are 

 several grejash-white marks, which are most conspicuous on 



