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Ossiannilssonola callosa Family: Cicadellidae O. callosa is a relatively large, but variable species, which when heavily marked (as right) is distinctive. In other specimens, the apical regions may not be suffused grey, and the brown marks in the clavus may also be absent. In small unmarked specimens, dissection of the male parameres may be necessary. Compare Edwardsiana crateagi. A local species that is nonetheless widespread in Great Britain, occurring on Sycamore. The species has also been reported on other trees, including Lime (Tilia) and Beech (Fagus). Adult: June to September Length 4-5 mm

Adult: Inverness-shire (September 2010) ©Joe Botting