British Insects: the Genus Phyllonorycter (Lepidoptera-Gracillariidae)
British Insects: the Genus Phyllonorycter (Lepidoptera-Gracillariidae) | |
Associated with trees. On Betulaceae; Betula spp..
Larvae. The larvae mining in leaves; in the under-side. Found in July, or September to October.
Adults. Antennae shining white to the base (ringed fuscous). Face white. Head orange, or fuscous. Thorax orange, or brown.
Wing-span 5–7 mm. Forewings shining golden brownish orange, or golden brown; with a well defined basal streak (this quite straight, traversing about a third of the wing and sometimes reaching the white fascia). The basal streak fuscous on the light background; not dark-edged above (but dark-margined below, towards the apex). Forewings with well defined pale strigulae (shining white). Costal strigulae 4. Dorsal strigulae 3. Forewings with the first costal strigula not forming an acute angle with a dorsal one; with one transverse pale fascia (via coalescence of the first pair of strigulae, which are unrecognisable as discrete entities). The fascia angulated. Hindwing cilia whitish fuscous.
Adults abroad May and August.
Miscellaneous. • Phyllonorycter species on Birch.
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’.
