British Insects: the Genus Phyllonorycter (Lepidoptera-Gracillariidae)
Synonyms: Phyllonorycter hortella (Fabricius), Phyllonorycter saportella (Duponchel).
Associated with trees. On Fagaceae; native (deciduous) Quercus.
Larvae. The larvae mining in leaves; in the under-side. Found in July, or September to October.
Adults. Antennae white to the base. Face shining white. Head white. Collar fuscous. Thorax white.
Wing-span 7–9 mm. Forewings shining white; clear shining white with coloured markings; exhibiting conspicuous transverse dark (black-edged, ochreous) fasciae (three of them); lacking the oblique golden brown fascia from the base of the costa exhibited by P. roboris; without a basal streak; with well defined pale strigulae to lacking well defined pale strigulae (the wing uninterpretable in the usual terms, giving the appearance of having five costal and three dorsal, yellow strigulae on a white background). The last fascia angulated. The antemedian fascia bluntly angulated.
Adults abroad May and August.
Illustrations. • The 9 species on deciduous oak.
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’.