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Javesella dubia Family: Delphacidae Javesella species occur as both macropterous and brachypterous forms, and show a variety of colouration; identifications must be made with care, and separation of species is not always possible from photos. J. dubia is a very common species, which is usually brachypterous. Males are frequently much darker than females. The body is often darker than in J. pellucida, and the wing membrane distinctly brown, with the apex somewhat asymmetric. Wing length in males is typically to around the base of the genital segment, which has a straight vertical edge in side view. Compare also wth J. discolor. Common across the UK in grassy areas, but perhaps most particularly in woodland. Adult: May to September Length 2.5 mm (macropters ~3.5 mm)
	Adult male: Huddersfield (May 2009) ©Joe Botting
Adult female: Huddersfield (May 2009) ©Joe Botting	Adult male: Berks (May 2009) ©Jonathan Michaelson
Adult male: north London (April 2009) ©Tristan Bantock	Adult male: north London (April 2009) ©Tristan Bantock
Adult female: Berks (May 2009) ©Jonathan Michaelson	Nymph, J. cf. dubia: Berks (May 2009) ©Jonathan Michaelson