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The two "Broom psyllids", this and Arytainilla spartiophila, are the only UK representatives of the subfamily Arytaininae. They have genal cones, and Cacopsylla-like venation, but virtually no pterostigma.
The dark streaks in the wing cells are a diagnostic feature of A genistae, although they are variably strongly developed. The female genital segment is relatively blunt (bottom right) compared with A. spartiophila, and the male parameres broad in side view. The nymphs have longer marginal setae in this species.
Found abundantly on broom (Cytisus scopularia) and overwinters on conifers. Widespread and common in the UK.
Adult: All year
Length 3.5 mm
Huddersfield (January 2008) ©Joe
|Adult: Herts (February 2008) ©Tristan Bantock
||Adult: Herts (February 2008) ©Tristan Bantock
|Nymph: Lincoln (August 2008) ©Michael Talbot||Adult female: Lincoln (November 2009) ©Michael Talbot|