204 NOTODONTINA [ETTSTROMA 



3. E. associata, BJch. (dotata, Gn., non L.) 29-34 mm. Fore- 

 wings pale ochreous-yellow, with deep ochreous- yellow striae, 

 two median joining to form rings ; posterior edge of second 

 fascia ferruginous, acutely angulated above middle ; edges of 

 median band dark ferruginous, anterior angulated above middle, 

 posterior with angular median projection ; a pale blotch above 

 a dark ferruginous oblique apical streak ; cilia sharply barred. 

 Hind wings whitish-yellowish. 



England to York, Renfrew, rather common in gardens ; C. 

 Europe, N. Asia ; 7. Larva slender, pale yellowish-green ; dorsal 

 line darker ; spiracular pale yellow : on currant (Ribes) ; 5, 6. 



4. E. populata, L. 29-33 mm. Forewings ochreous-yellow, 

 with indistinct brownish striae obsolete towards costa ; a yel- 

 lowish-brown basal patch, edge obtusely angulated ; median 

 band yellowish-brown, edges darker, anterior curved, posterior 

 with rounded double median projection ; a yellowish -brown 

 subapical blotch, suffused beneath. Hind wings pale greyish - 

 yellowish ; termen brownish. 



Britain to the Orkneys, Ireland, common ; N. and C. 

 Europe, N. Asia, N. America ; 7. Larva slender, 3 dilated ; 

 green or brown, with darker and whitish longitudinal marks ; a 

 dorsal series of whitish V-shaped marks, on 8-10 much larger 

 and more distinct : on Salix and Vaccinium ; 5, 6. 



5. E. testata, L. 29-33 mm. Forewings light reddish-grey, 

 sometimes suffused with ochreous-yellowish, with faint darker 

 striae ; basal patch somewhat darker, edge obtusely angulated ; 

 median band somewhat darker, edges dark ferruginous, right- 

 angled in middle, posterior waved below it, whitish-edged ; a 

 semioval ferruginous subapical blotch, white -edged above. 

 Hindwings grey-whitish ; a light reddish-grey terminal fascia. 



Britain to the Shetlands, Ireland, common ; N. and C. 

 Europe, N. Asia, N. America; 7, 8. Larva pale brownish - 

 ochreous ; dorsal line brown ; subdorsal white, brown -edged 

 above ; lateral white, edged with red-brown ; spiracles black, 

 conspicuous ; incisions pinkish : on Salix, birch, Calluna ; 5, 6. 



14. PLEMYEIA, Hb. 



Face with slight cone of scales. Antennae in <$ ciliated. 

 Palpi rough-scaled. Forewings : areole simple. Hindwings : 

 8 anastomosing with cell to beyond middle. 



A considerable genus, nearly cosmopolitan, but apparently 

 most numerous in South America. It is immediately derived 

 from Hydriomena. 



