British Insects: the Genus Phyllonorycter (Lepidoptera-Gracillariidae)
Associated with trees. On Salicaceae; Salix (mainly on the willows, S. viminalis and S. fragilis).
Larvae. The larvae mining in leaves; in the under-side. Found in June to July, or September to October.
Adults. Antennae shining white to the base (fuscous-ringed). Face coloured (golden). Head golden brown. Thorax golden yellow; with a conspicuous median pale streak.
Wing-span 7–9 mm. Forewings shining ochreous; suffused throughout with fuscous, or not suffused throughout with fuscous; with a well defined basal streak to without a basal streak (the streak relatively indistinct). The basal streak pale; markedly bent; not dark-edged above. Forewings with well defined pale strigulae to lacking well defined pale strigulae (the conventional costal and dorsal, wedge-shaped spots paler golden than the ground colour, but quite obscure and sometimes scarcely detectable). Costal strigulae (if discenable,) 4. Dorsal strigulae (if discernable) 3. Forewings with the first costal strigula approaching a dorsal one at an acute angle (when the strigulae are detectable); without transverse pale fasciae. Hindwing cilia light fuscous (slightly golden).
Adults abroad May and August.
Illustrations. • 5 species on Salix in Britain. See notes for legend. • P. viminetorum, P. salicolella and P. salictella viminiella: Stainton (1855) Plate I, under Lithocolletis. • Stainton (1855), Plate I: original legend..
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’.