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Stenocranus major
Family: Delphacidae

 Stenocranus species all have pale brown wings, often with a darker median stripe towards the apex, but they differ in several minor details of the head and forelegs. Separation of some species is difficult, and requires several features to be visible; specimens should be dissected for confirmation.

S. major is distinguished by the moderately short, rounded vertex. The longitudinal stripes on the face are black. Difficult to separate from S. fuscovittatus.

Locally common in marshy places with Phalaris arundinacea; southern Britain, but may be expanding.

Adult: February to October.
Length 5.5-6.5 mm
 Stenocranus major
Adult: south London (August 2009) ©Tristan Bantock
Stenocranus major Stenocranus major
Adult: Huddersfield (May 2009) ©Joe Botting

 Adult: Berks (August 2009) ©Jonathan Michaelson
Stenocranus major Stenocranus major nymph
Adult: Huddersfield (May 2009) ©Joe Botting

 Nymph: Huddersfield (August 2009) ©Joe Botting