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Keywords from Image Description:
Brockhaus and Efron Encyclopedic Dictionary . Illustration from Brockhaus and Efron Encyclopedic Dictionary Reduvius personatus Acanthia Cimex lectularia Nepa cinerea Notonecta glauca Fulgera candelaria Ptyelus spumarius Phylloxera vastatrix Coccus cacti Pediculus capitis Forficula auricularia Periplaneta