ARGYRESTHIA] TINEIDAE 765 



[A. decimella, Stt., a North European species, is said to have 

 occurred once near London ; the specimen may probably have 

 been introduced with plants.] 



12. A. abdominalis, Z. 7-9 mm. Head white. Forewings 

 shining whitish ; subcostal and subdorsal longitudinal streaks 

 from base to about middle, and several scattered spots or 

 strigulae on terminal half shining golden-ochreous ; some dark 

 fuscous scales at apex. Hindwings grey-whitish. 



Surrey, Cambridge, local ; N. and C. Europe, Asia Minor, N. 

 America ; 7. Larva in shoots of Juniperus ; 4. 



13. A. retinella, Z, 9-10 mm. Head white. Forewings 

 shining .white, irregularly strigulated with dark fuscous ; an 

 indistinct fuscous subcostal suffusion anteriorly ; a suffused 

 dark fuscous spot in middle of disc, and a larger one towards 

 apex ; a black apical dot. Hindwings grey. 



Britain to Perth, Ireland, common ; C. Europe ; 6, 7. Larva 

 in shoots of birch ; 5. 



14. A. glaucinella, Z. 8-9 mm. Head yellowish -white. 

 Forewings brassy-fuscous ; a whitish dorsal streak, strigulated 

 with dark fuscous ; a thick median fascia and apical patch 

 darker fuscous, with bluish reflections, separated by whitish 

 irroration. Hindwings grey. 



Britain to Perth, local ; Holland, Germany ; 6, 7. Larva in 

 bark of oak and horse-chestnut ; 3, 4. 



15. A. mendica, Hw. 10-11 mm. Head white. Forewings 

 fuscous, with purple reflections, base ochreous ; a thick white 

 dorsal streak to tornus ; a darker fuscous median fascia, inter- 

 rupted in disc, edged with whitish on costa; some whitish 

 costal strigulae posteriorly. Hindwings grey. 



England, common; C.and S. Europe, Asia Minor, N. America; 

 6. Larva whitish-green ; head and plate of 2 black : in flower- 

 ing shoots of blackthorn ; 4. 



16. A. semifusca, Hw. 11-12 mm. Head white. Forewings 

 dark purplish -bronzy -fuscous ; a thick white dorsal streak to 

 tornus, interrupted by a median spot of ground-colour ; costa 

 marked with minute white dashes, posteriorly with three or 

 four white strigulae. Hindwings grey. 



England to Cumberland, common ; not recorded elsewhere; 8. 



17. A. conjugella, Z. (1 aerariella, Stt.) 11-12 mm. Head 

 yellowish-white. Forewings rather dark purplish -fuscous ; 

 costa strigulated with whitish; a thick white dorsal streak 

 to tornus ; an interrupted dark fuscous median fascia ; one or 

 two white costal spots before apex. Hindwings grey. 



