British Insects: the Genus Phyllonorycter (Lepidoptera-Gracillariidae)
British Insects: the Genus Phyllonorycter (Lepidoptera-Gracillariidae) |
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Synonyms: alnifoliella auct., rajella auct. Confusion with P. rajella (Linnaeus), P. alnifoliella (Hübner).
Associated with trees. On Betulaceae; Alnus.
Larvae. The larvae mining in leaves; in the under-side. Found in July, or September to October.
Adults. Face white. Head mixed white and fuscous. Thorax mixed white and fuscous.
Wing-span 7–9 mm. Forewings variable, dark ochreous, or fuscous; with a well defined basal streak (this somewhat lanceolate and pointed, reaching to the middle of the wing). The basal streak pale; dark-edged above. Forewings with well defined pale strigulae (white). Costal strigulae 4. Dorsal strigulae 3. Forewings with the first costal strigula approaching a dorsal one at an acute angle; without transverse pale fasciae. Hindwing cilia brownish fuscous.
Adults abroad May and August.
Miscellaneous. • Phyllonorycter species on Alder.
To view the illustrations with detailed captions, 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.
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. British insects: the genus Phyllonorycter (Lepidoptera-Gracillariidae). Version: 13th June 2008. http://delta-intkey.com’.
