8o LEPIDOPTERA. 



Asliford, Kent, and Mr. S, Webb has seen two believed to 

 have been taken near Chiswick. I know of no recent 

 capture. 



It is found not uncommonly in France and other portions 

 of Central and Southern Europe, and occurs also in Scandi- 

 navia and Finland. 



2. S. scoliseformis, Hiih. — Expanse, \\ inch. Wings 

 transparent with the cross-bar and tip black. Abdominal 

 belts yellowish ; anal tuft chestnut. 



Antennae, in the male, black and distinctly pectinated ; in 

 the female simple, black also, but with a large space from 

 the middle to just below the apex silvery yellowish-white. 

 Head black ; collar reddish at the sides ; thorax black, with 

 a long slender yellow stripe on each shoulder ; abdomen black 

 with two clear yellow rings or slender belts ; anal tuft large, 

 chestnut or yellowish-red, mixed with black at the base, and 

 with chestnut side-sections; legs yellowish, clouded with 

 black, tarsi brownish. Wings transparent, with the nervures 

 black ; costal margin of the fore wings broadly deep black ; 

 dorsal margin very narrowly black ; hind margin dull black 

 and having its area, more especially towards the costa, filled 

 with a large smoky-black blotch, in which the deep black 

 nervures are visible ; transverse spot deep black, ovate, and 

 not reaching the dorsal margin. Hind wings margined with 

 black ; all the cilia smoky-brown. 



Under side of the wings like the upper, except that the 

 costal margins of both fore and hind wings are yellow ; the 

 transparent surface shining, but not iridescent. Palpi and 

 front of the thorax orange-yellow ; remainder of the under 

 surface of the thorax black ; of the abdomen black, with a 

 broad yellow belt, and the anal tuft orange-red, with the 

 centre yellow ; legs yellow with blackish spots. 



On the wing in June or in late seasons in July. 



. Larva slightly flattened, of tolerably even thickness, with 

 segments deeply divided ; furnished with short, scattered. 



