286 NOTODONTINA [ENNOMOS 



2. E. fuscantaria, Hw. 33-38 mm. Head light ochreous or 

 brownish. Posterior tibiae without middle -spurs. Forewings 

 ochreous; first and second lines hardly curved, fuscous, ap- 

 proximated or meeting dorsally ; terminal area beyond second 

 suffused with pale fuscous; a faint fuscous discal mark. 

 Hindwings dull ochreous. 



England, rather common ; N. France to Prussia ; 8, 9. 

 Larva pale yellowish -green, white-sprinkled ; spiracular line 

 conspicuously paler ; 7 and 1 3 with pairs of small tubercles : 

 on ash ; 6, 7. 



3. E. alniaria, L. (tiliaria, Bkh.) 34-37 mm. Head and 

 thorax clear yellow. Posterior tibiae without middle -spurs. 

 Forewings yellow -ochreous strigulated with fuscous; first and 

 second lines curved, dark fuscous ; a dark fuscous discal mark. 

 Hindwings yellow -ochreous, posteriorly strigulated with dark 

 fuscous ; median line straight, grey, often faint ; a grey discal 

 spot touching it. 



Britain to Caledonian Canal, common ; C. Europe ; 8, 9. 

 Larva pale brown; 6, 9 with transverse ridges; 7, 8, 12 with 

 pairs of small tubercles; 13 with two points: on oak, birch, 

 etc. ; 6, 7. 



4. E. quercinaria, Hufn. (angularia, Bkh.) 35-43 mm. 

 Head pale ochreous. Posterior tibiae with middle -spurs. 

 Forewings light ochreous, sometimes partially reddish-ochreous, 

 strigulated with dark fuscous ; first and second lines curved, 

 dark fuscous, second sometimes followed by a fuscous suffusion ; 

 a fuscous discal dot. Hindwings pale ochreous, more reddish- 

 ochreous posteriorly ; median line curved, grey, indistinct ; 

 sometimes a discal dot on it. 



England to York, Lanark, common ; C. Europe ; 8-10. 

 Larva ashy -grey, dark -marked ; subdorsal line pale on 2-6 ; 6 

 with three yellowish-tipped projections, central largest, 8, 10 

 with four each, 12 with two : on beech, birch, etc. ; 5-8. 



5. E. autumnaria, Wemb. (alniaria, Esp.) 42-48 mm. 

 Head orange. Posterior tibiae with middle- spurs. Forewings 

 light orange-ochreous, deeper towards apex, coarsely strigulated 

 with dark grey ; first and second lines thick, curved, dark grey ; 

 a dark grey discal spot. Hindwings pale orange-ochreous, 

 deeper terminally, sometimes partly strigulated with dark 

 grey. 



Kent to Devon, York, scarce, hardly native ; N. and C. 

 Europe ; 8, 9. Larva light brown, marked with darker and 

 paler (rarely green, white -sprinkled) ; subdorsal line pale 



