FAM. GRACILARIAD/E 



23 



Apparently a development of Gracilaria, from which however it is very distinct. 



Imago with forepart in repose strongly raised and two anterior pairs of legs prominently 

 displayed. 



Larva cylindrical, broadest anteriorly, tapering posteriorly, legs and prolegs developed; at first 

 mining a blotch in leaves, afterwards within a folded corner of the leaf. 



Pupa within a folded corner of the leaf. 



Foodplants (known for thirty species) almost wholly Dicotyledonous trees and shrubs, no species 

 feeding habitually on a herbaceous plant; half are Rosaceae and a quarter Betulaceae, the remainder 

 Ericaceae, Salicaceae, Cupuli ferae, and Aceraceae. 



Geographical distribution of species. — Wholly confined to temperate regions of the 

 Northern hemisphere, except one species in the West Indian islands. Probably, like Lithocolletis , it is of 

 North American origin, and recent in time. 



GROUP A 



Europe, N. America. 



i. O. guttea, Haworth, Lep. Brit. p. 53i (1828). — Plate, Fig. 16. 

 ? gylhtibalella, Thunberg. Diss. Ent. Vol. 7, p. 89 (1794). 

 guttiferella, Duponchel. Hist. Nat. Lep. Fr. Vol. 11, pi. 3o6, f. 11 (i838). 

 ? cojfeella, Zetterstedt. Ins. Lapp. p. 1009 (1840). 

 solitariella, Dietz, Trans. Amer. Ent. Soc. Vol. 33, p. 290, pi. 4, f. 1 (1907). 



2. O. iniemtptella, Zetterstedt, Ins. Lapp. p. 1009 (1840). 



caelatella, Zeller, Linn. Ent. Vol. 2, p. 585 (1847). 



3. O. Pfaffenzelleri , Frey, Tinein. Schweiz. p. 245 (i856). 



4. O. insperatella, Nickerl, Wien. Ent. Monatschr. Vol. 8. p. 5, pi. 5, f. 12 C. Europe. 



(1864). 



5. O. kahniella, Dietz, Trans. Amer. Ent. Soc. Vol. 33, p. 291, pi. 4, f. 3 N. America 



(1907). 



6. O. preciosella, Dietz, ibidem, p. 291, pi. 4, f. 2 (1907). N. America 



N. and C. Europe. 

 C. Europe. 



GROUP B 



7- 



0. 



8. 



0. 



9- 







10. 



O 



1 1 . 



0. 



12. 







i3. 







H- 







i5. O. 



16. 0. 



17. o 



18. o. 



19. o. 



20. 



21. O, 



22. O. 



loganella, Stainton. The Zoologist, p. 2162 (1848). 

 dislinctella. Xolcken, Lep. Faun. Liv. p. 636 (1870). 

 polygrammella, Wocke, Stett. Ent. Zeit. Vol 23. p. 242 (1862). 

 alpicola, Wocke, Breslau. Ent. Zeitschr. p. 48 (1877). 

 petwlella, Frey, Linn. Ent. Vol. i5, p. 17 (1861). 

 fagivora, Frey, ibidem, Vol. i5, p. 19 (1861). 



devoniella. Frey (nee Stainton), Tinein. Schweiz. p 252 (i856). 

 carpinella, Frey, Linn. Ent. Vol. i5. p. 21 (1861). 

 anglicella, Stainton, Trans. Ent. Soc. Lond. (2), Vol. 1, p. 92 (i85o). 



fragariae, Stainton, Entom. Ann. p. 161 11874). 

 avellauella, Stainton, Ins. Brit. Tin. p. 204 (1854). — Plate, 

 Figs. 27a, b, c. 



? devoniella, Stainton, Trans. Ent. Soc. Lond. (21, Vol. 1, p. 89 (i85o). 

 finitimella, Zeller, Stett. Ent. Zeit. Vol. n, p. 162 (i85o). 

 torquilhlla, Zeller. ibidem, p. 161 (i85o). 

 scoticella, Stainton, Trans Ent. Soc. Lond. (2), Vol. 1, p. 94 (i85o). 



lamella, Tengstrom, Notiser Sallskap pro Fauna Fenn. Forhandl. Vol. 4, 

 p. 193 (I85 9 ). 

 fulluzella, Chretien, Bull. Soc. Ent. Fr. p. 2o3 (1898). 

 betulae, Stainton, Ins. Brit. Tinein. p. 2o5 (1854). 



scuUilatella, Stainton, ibidem, p. 206 11854I. 

 aiigiiliferella. Zeller. Linn. Ent. Vol. 2, p. 377 (1847). 

 amplialella. Stainton, Trans. Ent. Soc. Lond. (2), Vol. 1 . p. 95 (i85o). 



W. C. Europe. 

 N. E. Europe. 

 N. Europe. 

 C. Europe. 

 C. Europe. 

 C. Europe. 



C. Europe. 

 C. Europe. 



N. and C. Europe. 



C. and S. Europe. 



Europe. 



Europe. 



W. C. Europe. 

 N. and C. Europe. 



C. Europe, Asia Minor. 

 S. Europe. 



