Alder psylla, Psylla alni, adults, and nymphs covered in waxy secretions on leaves. Handcoloured lithograph from Georg Friedrich Treitschke's Gallery of Natural History, Naturhistorischer Bildersaal des Thierreiches, Liepzig, 1842.

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Size: 4606px × 6474px
Photo credit: © Florilegius / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: adult, alder, alni, bildersaal, bug, des, friedrich, gallery, georg, handcoloured, history, insect, leaf, lithograph, natural, naturhistorischer, nymph, pest, psylla, secretions, thierreiches, tree, treitschke, waxy