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Psylla alni Family: Psyllidae A very large psyllid which is predominantly green, including the costal marginal vein. The antennae are very long (more than 2.55X head length). The wing veins are much darker than the membrane, which has dark spinules over much of the surface. The body can develop red or brown markings in late summer.     P. alni is a common species on alder across the UK. Length 5-6 mm
	Adult: north London (June 2008) ©Tristan Bantock
	Adult: Lincoln (September 2008) ©Michael Talbot