524 TORTRICINA [ACALLA 



before central fascia white or whitish -ochreous, rest dark ; a 

 large scale -tuft on submedian fold before middle, and smaller 

 ones posteriorly ; sometimes a suffused dark dorsal spot at J, 

 or a large dark triangular costal blotch posteriorly. Hindwings 

 grey, faintly darker-strigulated. 



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

 Europe; 7-9. Larva pale green or yellowish; dorsal line 

 darker green or red-brown; head yellowish-brown : on hawthorn, 

 blackthorn, rose, etc.; 6, 7. 



14. A. permutana, Dup. 14-17 mm. Head dark brown, 

 thorax whitish-ochreous. Forewings oblong, reddish-ochreous ; 

 basal half before central fascia whitish-ochreous with a few 

 darker strigulae, enclosing a triangular dark reddish -fuscous 

 dorsal spot mixed with leaden-grey, with scale-tuft in its apex ; 

 central fascia brown, posteriorly undefined, with small scale- 

 tufts on anterior edge, one in middle larger; costal patch 

 reddish -fuscous, connected beneath with termen. Hindwings 

 whitish-fuscous. 



Surrey, Caernarvon to Lancashire, E. Ireland, local; SE. 

 Europe, N. America ; 8, 9. Said to frequent Rosa spinosissima. 



15. A. perplexana, JBarr. 15-18 mm. Forewings oblong, 

 pale reddish -brown, fuscous, or dark fuscous, darker-strigulated ; 

 tufts slight, a larger one in middle of disc ; edge of basal patch 

 darker dorsally ; a large triangular red-brown or blackish-fuscous 

 blotch on costa, anterior edge deep red-brown, sometimes with 

 extension of central fascia to dorsum. Hindwings pale grey. 



Norfolk, Hereford to Pembroke, Lancashire to the Clyde, N. 

 Ireland, local ; not recognised elsewhere ; 7, 8. Larva green- 

 whitish ; dorsal line green ; head and plate of 2 pale brown : on 

 hawthorn, blackthorn, bramble, etc.; 6. The specific distinct- 

 ness of this form is as yet doubtful. 



16. A. schalleriana, L. (comparand, Hb.) 15-18 mm. Fore- 

 wings oblong, ochreous -grey to ochreous -brown, sometimes 

 darker-strigulated ; a moderately large tuft on submedian fold 

 before middle, one in middle of disc, and scattered smaller 

 tufts, often black ; edge of basal patch sometimes darker 

 dorsally; a large triangular red -brown or dark fuscous blotch 

 on costa, sometimes whitish- edged anteriorly. Hindwings 

 grey. 



Britain to Caledonian Canal, N. and E. Ireland, common ; 

 C. Europe, N. America ; 8, 9. Larva green ; head brownish : 

 on Salix caprea; 6. 



17. A. comariana, Z. (proteana, HS. ; potentillana, Cooke). 



