Insects are the most species-rich class of arthropods (Arthropoda) and also the most species-rich class of animals with one million species. This means that more than 60% of all described animal species are insects. Around 34,000 species of insects are known from Germany alone. The size varies greatly and is between one and 20 millimetres for most species. Common to all insects is an exoskeleton made of chitin and sclerotin, the anatomically mostly clearly visible division into the three sections - less pronounced in beetles - (tagmata) head (caput), chest (thorax) and abdomen, as well as three pairs of legs.

Insects: 1 = Buffalo cicada, 2 = weevil, 3 = grasshopper, 4 = grape berry moth, 5 = vine weevil
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Thomas Götz
Weinberater, Weinblogger und Journalist; Schwendi