Phasmatodea (also known as Phasmida) comprises 3000 species worldwide with only 15 species known in Europe. Stick-insects are found in nearly all temperate and tropical ecosystems. Species are mostly nocturnal and phytophagous. Phasmatodea bears several common morphological characters that clearly defi ne the order: an emarginated labrum, a pair of exocrine glands located inside the prothorax, and a thorax fused with the first abdominal sternum. Phasmids undergo an incomplete metamorphosis (four to eight instars), with the young nymphs resembling miniature, albeit wingless, adults.
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