TINEINA [CEROSTOMA 



Larva attenuated towards extremities ; feeding in a slight web 

 on leaves of trees and shrubs. The structure of veins 7 and 8 

 of the forewings varies within the limits of the same species. 



1. Forewings with apex strongly falcate . . 2. 



,, ,, not falcate . . . 3. 



2. Forewings deep ochreous-brown . . 2. xylostella. 



,, whitish-ochreous . . 3. nemorella. 



3. Forewings with apex very strongly produced 1. cavdella. 



,, ,, not strongly produced . 4. 



4. Forewings with scale-tufts on surface . . 5. 



,, without scale-tufts . . .7. 



5. Forewings wholly dark ferruginous-fuscous 6. horrideUa. 



,, at least partly whitish . . 6. 



6. Forewings with dorsal half mostly dark fuscous 



5. scahrella. 

 ,, ,, „ not dark fuscous 4. as2nrell(.i. 



7. Head whitish . . . . .8. 



,, not whitish . . . .10. 



8. Forewings ochreous-white . .12. sequella. 



„ pale or deep ochreous . . .9. 



9. Forewings with blackish dot above tornus 10. costella. 



,, without such dot . . 7. luceUa. 



10. Forewings with two transverse streaks . .11. 



,, without transverse streaks . .12. 



11. Streaks not reaching above middle . 8. aljiella. 



,, nearly reaching costa . . 9. sylvella. 



12. Forewings with dorsum blackish . . 13. vittella. 



,, ,, ,, not blackish . 11. radiateUa. 



1. 0. caudella, L. ('? viucronella, Sc.) 2G-32 mm. Forewings 

 narrow, apex very strongly and acutely produced ; light brown- 

 ish -ochreous, with scattered black scales, veins obscurely 

 wdiitish ; a dark fuscous streak along fold from base to beyond 

 middle ; sometimes other dark streaks between veins ; a raised 

 dark fuscous dot bencatli fold before middle. Hindwings pale 

 whitish-fuscous. 



S. England to Hereford and Norfolk, not unconnnon ; C and 

 S. Europe, Asia Minor; 8-4. Larva greenish-grey, marbled 

 with rosy-ochreous ; dorsal line whitish ; 3 and 4 with pairs of 

 black spots : on Enoni/mus ; 6-8. 



2. C. xylostella, L. {hmyella, Schirt'.) 17-21 nun. Head and 

 thorax white, patagia deep brown. Forewings with apex very 

 strongly falcate; deep ochreous-brown, lighter towards costa 

 anterioi-ly ; a light yellmv dorsal streak from base to tornus, 



