142 CARADRININA [ACRONYCTA 



5 with long narrow dorsal blackish prominence, 12 with a 

 smaller prominence; numerous ochreous, whitish, and blackish 

 hairs ; head black : on plum, rose, birch, etc. ; 7-9. 



6. A. megacephala, F. 40-42 mm. Forewings ochreous-grey- 

 whitish, irrorated with blackish ; second and subterminal lines 

 more whitish, median shade and margins of first, second, and 

 subterminal lines formed by denser cloudy irroration ; orbicular 

 and reniform more or less pale-suffused, darker-outlined. Hind- 

 wings whitish, towards termen'and on veins more or less sprinkled 

 with dark fuscous. 



Britain to Ross, Ireland, common ; Europe, Asia Minor, N. 

 Asia; 6, 7. Larva dark fuscous or grey above, paler laterally; 

 numerous pale yellowish pubescent dots, tending to form several 

 lines; 11 with a pale yellow or white dorsal patch; numerous 

 mostly pale or whitish hairs ; head black, whitish-marked : on 

 poplar, or seldom Salix ; 7-9. 



7. A. aceris, L. 40-44 mm. Forewings whitish, irrorated 

 with greyish-ochreous scales tipped with blackish ; an ill-defined 

 slender branched blackish median basal streak to beyond first 

 line ; first and second lines dark-edged, second followed by a 

 brownish shade; median line fuscous, more distinct towards 

 costa, traversing reniform ; orbicular round, blackish - out- 

 lined ; reniforrn indistinctly dark-outlined. Hindwings white ; 

 veins and ternien more or less irrorated with dark fuscous. 



England to Lancashire, N. and W. Ireland, not uncommon ; 

 Europe, Asia Minor; 6, 7. Larva red-brown or blackish, 

 whitish-freckled ; dorsal series of white black-edged diamonds ; 

 numerous very long yellow hairs ; head black : on horse-chest- 

 nut, sycamore, oak, etc.; 7-9. 



8. A. ligustri, F. 35-41 mm. Forewings rather dark 

 purplish-ashy-fuscous, partly tinged with dull olivc-greoii, 

 with a few white scales ; subbasal, first, and second lines edged 

 with black, subbasal ending in a short black dash ; orbicular 

 white-edged, black -outlined, surmounted by a whitish costal 

 suffusion; claviform partly white - edged ; reniform black-out- 

 lined, posteriorly strongly white-edged, followed by a suffused 

 white blotch ; subterminal line partly white. Hindwings 

 fuscous, faintly greenish-tinged. 



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

 6, 7. Larva pale, bluish-green, beneath yellowish-green ; dorsal 

 line whitish ; lateral pale yellowish ; spiracles red ; dots black, 

 bearing single rather long black hairs ; head green : on ash 

 (seldom privet, alder, etc.) ; 7-9. 



