. Abb. 1. a) Psylla pyricola, Dorsalansicht. — Nach Haupt, b) Psylla mali, Latoral- ansicht. A, a := Analis; Ax =^ Axillaris; C = Costa; Cu, cu = Cubitus; M, m = Me- dia; i? = Radius; Rr,rr= Radialramus. — Nach Speyer.

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