Treehoppers
and thorn bugs are members of the family Membracidae, a group of
insects related to the cicadas and the leafhoppers. There are about
3,200 known species of treehoppers in over 600 genera. They are found on
all continents except Antarctica, although there are only three species
in Europe.
They
are best known for their enlarged and ornate pronotum, which most often
resembles thorns, apparently to aid camouflage. But in some species,
the pronotum grows to a horn-like extension, and even more bizarre and
hard-to-describe shapes are also found.
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