British Insects: the Genus Phyllonorycter (Lepidoptera-Gracillariidae)
Synonym: Phyllonorycter concomitella (Bankes). Including P. hostis Triberti (of which British material was formerly referred to cydoniella Denis & Schiffermuller), for which a diagnostic description has yet to be located.
Associated with trees. On Rosaceae; Malus (P. blancardella s. str.), Cydonia, Malus, and Sorbus (P. hostis).
Larvae. The larvae mining in leaves; in the under-side. Found in July, or September to October.
Adults. Face white. Head white and brown, or orange and fuscous. Thorax brown (or copper-brown, sometimes with a posterior white spot); not shining-metallic.
Wing-span 8–9 mm. Forewings golden orange, or golden brown; with a well defined basal streak. The basal streak pale; straight, neither markedly long and slender nor sinuate (or slightly curved, extending about a third the length of the wing, and sometimes coalescing with the top of the first dorsal strigula); dark-edged above (and often below towards the apex). Forewings with well defined pale strigulae (white). Costal strigulae 4. Dorsal strigulae 2, or 3–4 (then with one or two inside the fringe line). Forewings with the first costal strigula approaching a dorsal one at an acute angle; without transverse pale fasciae. Hindwing cilia fuscous (or somewhat brown). Posterior tarsi with dark spots.
Adults abroad April to May, or July to August.
General comments. Adequate descriptions and illustrations for distinguishing British species of the blancardella group (P. blancardella and P. hostis) have yet to be incorporated.
Illustrations. • Two forms of Phyllonorycter blancardella, with food-plant. • Mainland-european P. cydoniella (cf. P. blancardella) and 5 other species: Hübner, 1796–1819.
To view illustrations with legends giving names in current use, go to the interactive key. This also offers full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa, as well as source references and other relevant material.
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. British insects: the genus Phyllonorycter (Lepidoptera-Gracillariidae). Version: 29th December 2011. http://delta-intkey.com’.