QRAC1LARIA] TINEIDAE 751 



12. Apex of costal blotch emitting an oblique streak 



2. stigmalella. 

 ,, „ „ not emitting a streak 



4. falconipennella. 



13. Costal blotch margined anteriorly by a dark fascia 



3. hemidactylella. 

 „ „ without dark fascia . .14. 



14. Costal blotch sharply defined . .1. alchirniella. 



,, „ indistinct or obsolete . 7. elongella. 



1. G. alchirniella, So. (swederella, Thnb.) 10-13 mm. Fore- 

 wings purplish-ferruginous; dorsum suffused with yellow to- 

 wards base ; a large triangular yellow median costal blotch, 

 apex often rounded. Hindwings dark grey. 



Britain to Perth, Ireland, common ; Europe, N. America ; 

 5, 8. Larva whitish ; dorsal line dark greenish-grey ; head 

 yellowish, brown-marked : within conioally rolled leaves of 

 oak ; 7, 9. 



2. G. stigmatella, F. 12-14 mm. Forewings red-brown, 

 darkest towards costal blotch; a triangular white median 

 costal blotch, usually mixed with brown-reddish, on costa 

 marked with several blackish dots, apex emitting a slender 

 outwardly oblique streak towards dorsum. Hindwings grey. 



England to Durham, N. Ireland, common ; Europe, WC. 

 Asia to Turkestan ; 9-5. Larva green-whitish ; head yellowish, 

 brown -marked : within conically rolled leaves of Salix and 

 poplar; 8, 9. 



3. G. hemidactylella, /'. 12-14 mm. Forewings light 

 ochreous-ycllowish, mixed and strigulated with red-brown ; 

 a large triangular paler median costal blotch, on costa 

 marked with several blackish dots, anteriorly margined by 

 a suffused dark reddish-fuscous fascia. Hindwings grey. 



SE. England to Dorset and Norfolk, Cheshire, Westmore- 

 land, S. Ireland, local; ('. Europe; 9-5. Larva pale yellow- 

 greenish ; dorsal line dark green; head paler: within conically 

 rolled leaves of sycamore ; 7, 8. 



4. G. falconipennella, Hb. 12-14 mm. Forewings dark 

 reddish-fuscous in-orated with whitish; margins and fold 

 dotted with black ; an indistinct whitish triangular costal 

 blotch before middle. Hindwings dark grey. 



Kent, Surrey, Hereford, scarce and local; C. Europe, N. 

 America; 9 I. Larva within folded leaves of alder ; 7, 8. 



5. G. semifascia. Hie. 10-12 mm. Forewings reddish fuscous, 

 often mixed with pale yellowish ; an oblique ochreous- white 



