British Insects: the Genus Phyllonorycter (Lepidoptera-Gracillariidae)
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 white. Head white. Thorax white.
Wing-span 7–8 mm. Forewings shining white to whitish (slightly brassy beyond the middle); clear shining white with coloured markings (slightly brassy beyond the middle); exhibiting conspicuous transverse dark (black-edged, ochreous) fasciae; with a well defined basal streak. The basal streak fuscous on the light background (the slender, fuscous median line extending to the middle of the wing). Forewings with well defined pale strigulae (or at least, interpretable as such), or lacking well defined pale strigulae. Costal strigulae (at least interpretable as) 4. Dorsal strigulae (at least interpretable as) 3. The last fascia straight. Hindwing cilia white.
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’.