
Issus coleoptratus - waxy filaments, Heesch, Netherlands
Extreme closeup of the "rainbow butt" of this planthopper.
These waxy filaments are sometimes seen after the nymph eating live plant material. The exact purpose of these glands is not yet known. In other cicada species this has been described as playing a role in the safe removal of honeydew by coating the excreted droplets with waxy strands preventing contamination of the body.

"Issus coleoptratus" is a common insect found in the western Palaearctic. It is a species of planthopper that is 5.5–7.0 millimetres long. The coloration of this insect can vary from light brown and olive to nearly black.
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