British Insects: the Genus Phyllonorycter (Lepidoptera-Gracillariidae)
Synonym: Phyllonorycter tenella (Zeller).
Associated with trees. On Carpinaceae; Carpinus.
Larvae. The larvae mining in leaves; in the under-side. Found in July, or September to October.
Adults. Face white. Head white. Thorax white.
Wing-span 7–8 mm. Forewings shining white, or ochreous, or fuscous (or ochreous-fuscous: the usual interpretation of this wing as representing dark patterning on a shining white backgound seeming no better than viewing it as white markings on a dark background); with a well defined basal streak (this broad, reaching to or beyond the middle of the wing, joining the first dorsal strigula; or at least interpretable as such). The basal streak pale; not dark-edged above. Forewings with well defined pale strigulae, or lacking well defined pale strigulae (depending on interpretation: the latter being the case if the wing is seen as white with dark strigulae and fasciae). Costal strigulae (if interpreted as such,) 4. Dorsal strigulae (if interpreted as such,) 2, or 3. Forewings with the first costal strigula approaching a dorsal one at an acute angle; with one transverse pale fascia (the first costal strigula joining the first dorsal one). The last fascia straight. Hindwing cilia light fuscous.
Adults abroad May and August.
Illustrations. • Species on Hornbeam in Britain.
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’.