,U'.- LE/'/VOrrEK.A. 



the lore wiiijrs black-brown, the costa from the middle, ami 

 the hintl margin, biwuiJly dotted or shaded with white. Hind 

 wings smoky white. 



The faint shade of pink sometimes seen on the white area 

 of the fore wings is merely a remnant of more extended 

 suffusion of the same colour, or of brownish pink, with which 

 many specimens are moiv fully tinted on emergence fron^ 

 the pupa. 



On the wing iu July and August ; and occasionally, as a 

 very partial second generation, iu October. 



Larva cylindtical. but a little attenuated at each ex- 

 tremity, smooth, shining, and rather plump, active; bright 

 green, the folds between the segments more yellow ; raised 

 dots distinct, yellow ; dorsal line narrow, grey-green, as are 

 two snbdoi-sal lines ; hejxd small, yellowish- green ; plates 

 pale given. 



May and June, in rolled and twisted leaves of birch. 



Pita in the larval habitation. 



The moth rests during the day in birch trees, aud especially 

 in birch bushes, on heaths, on the edges of woods. AAhen 

 disturbed by the beating-stick it dashes away and tlies about 

 in a zigzag manner to another tree or bush. At early dnsk 

 it Hies sti-ongly over the bushes and ti-ees, and will come to 

 sugar smeared on their trunks to attract Noctuiv. Es|>ecially 

 attached To the birches which grow scattenjd on heaths and 

 hill -sides, and apparently to l>e found in such suitable places 

 throughout England : aud in Scotland to Perihsliire, Dum- 

 bartonshire aud Moray ; but I have no r^cotxi for Wales. In 

 Ireland found in Wicklow. l\>wn. Armagh, Deny, and Slig\.>. 

 Abroad ihrongh the greater jvirt of Central tmd Northern 

 Earope, and in North Italy. 



4. P. sororculana. Z-tt : prselongana, Oil — Expanse 

 g to ^ inch ^^l 0-1*1 wui.). Fore wings narrow; for two- 

 thirds from the base black-brown with a white costal spot i 



