64 CAKADEININA [ORTHOSIA 



reddish-tinged; subbasal, first, and second lines indicated by 

 black dots ; median shade darker grey ; orbicular and reniform 

 edged with whitish and outlined with brown-red, lower end of 

 reniform blackish; subterminal line nearly straight, broken 

 near costa, grey -whitish, edged anteriorly with brown -red. 

 Hindwings grey, darker terminally. 



Britain to Caledonian Canal, Ireland, common ; C. and 

 SW. Europe, Asia Minor, NW. Asia; 9, 10. Larva brown, 

 sometimes purplish or reddish - tinged ; dorsal and subdorsal 

 lines white, interrupted, dark -edged ; spiracular broad, ochre- 

 ous-whitish ; tubercular dots white : on Salix fragilis, etc. ; 5-6. 



15. 0. ypsilon, Bkh. (fissipuncta, Hw.) 33-35 mm. Fore- 

 wings brown more or less mixed with dark fuscous, slightly 

 purplish -tinged; subbasal, first, and second lines obscurely 

 pale, darker-edged ; median shade darker fuscous ; orbicular 

 and reniform outlined with whitish, connected beneath ; clavi- 

 form outlined with darker; subterminal line whitish. Hind- 

 wings pale grey, darker posteriorly. 



Britain to Caledonian Canal, E. Ireland, rather local ; C. 

 Europe, WC. and NW. Asia; 7. Larva brown, sometimes 

 reddish-tinged, blackish-marked ; dorsal line pale ; subdorsal 

 pale, interrupted ; spiracular pale, dark-edged above : on Salix 

 and poplar ; 5. 



16. 0. suspecta, Hb. 28-32 mm. Forewings grey, more or 

 less tinged with violet-reddish ; first line darker, blackish- 

 sprinkled, second indicated by black dots ; median shade 

 darker; orbicular and reniform outlined with whitish, lower 

 end of reniform somewhat darker; subterminal line faintly 

 paler. Hindwings grey, darker terminally. 



Britain to Ross, local, scarce southwards ; C. Europe, N. 

 and WC. Asia ; 7. Larva purplish-brown ; dorsal line almost 

 white ; subdorsal series of blackish marks ; faint lateral series 

 of whitish freckles ; subspiracular pale, greenish-tinged ; head 

 yellow-brown, black-marked : on birch and poplar ; 5. 



17. 0. satellitia, L. 38-45 mm. Forewings reddish-ochre- 

 ous-brown, somewhat purplish - shining ; subbasal, first, and 

 second lines dark brown, first straight ; median shade brown ; 

 reniform orange or clear white, forming a semi-oval spot with 

 a dot at upper and lower extremity; subterminal line obscurely 

 pale. Hindwings grey. 



Britain to Ross, Ireland, common ; N. and C. Europe, NW. 

 Asia; 10-3. Larva dark brown; dorsal and subdorsal lines 

 sometimes somewhat paler; spiracular whitish, often reduced 



