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Psyllopsis cf. fraxini
Family: Psyllidae

Psyllopsis species all feed on Ash, and have a broadly similar colouring, needing some care to separate them.

P. fraxini has definite dark clouds around the apex of the forewing, in a reasonably consistent pattern, and much more distinct than in P. discrepans. It is only certainly separable from the similar but scarce P. distinguenda by the form of the male parameres; the wing patterning may also differ consistently, but this is unclear.

Common on Ash (Fraxinus spp.) across the UK.

Adult: ?June to November
Length 3-4 mm
Psyllopsis distinguenda
Adult female: Huddersfield (June 2008) ©Joe Botting

Psyllopsis fraxini Psyllopsis sp. gall
Adult male: north London (June 2008) ©Tristan Bantock
Galls, Psyllopsis cf. fraxini.: Nottingham (May 2008) ©Jerry Clough