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Psallus cf. perrisi
Family: Miridae

The Psallus group includes many small bugs (< 6 mm) which are often mottled red, grey or dark brown. The pronotum and forewings are covered in scale like pale hairs and the tibial spines arise from black spots.

Species identification of 
Psallus based on external features is often difficult and frequently impossible. However, the hostplant can be informative, and may narrow down the range of possibilities.

P. perrisi is a very common early season bug on oak across the UK. The ground colour is dark brown-black and males are darker than females. The upper surface is covered with golden hairs and the femora are dark.

Note that this species
cannot be separated from P.wagneri (which also occurs on oak) without reference to the genitalia.

Adult: May-August
Length ~4 mm

Psallus perrisi
Adult male: north London (May 2008) ©Tristan Bantock

Psallus perrisi Psallus perrisi
Adult female: Cheshire (June 2008) ©Shane Farrell

Adult female: north London (May 2008) ©Tristan Bantock