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Psylla alni · blakutė
- Alder Sucker
- Erlenblattfloh
- alkšņu lapblusiņa
- miodówka olszowa
A very large psyllid (5-6 mm), predominantly green, including the costal marginal vein. The wing veins are much darker than the membrane and the membrane has dark spinules over much of the surface. The body can develop red or brown markings in late summer. The antennae are very long (more than 2.5x head length). Adults found in June-October. Nymphs with waxy secretions. Larvae feed on young Alnus shoots in the leaf axils.
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