Rove Beetle | Insect - Encyclopedia Britannica

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• Online Information Service for Non- Chemical Pest Management in the Tropics- Rove beetles
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• University of Florida - Rove Beetles
• University of Florida, Institute of Food and Agricultureal Science - Rove Beetles
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Ask the Chatbot a Question Also known as: Staphylinidae, Staphylinus caesareus Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors. The Editors of Encyclopaedia Britannica Article History Table of Contents Table of Contents Ask the Chatbot a Question Related Topics: devil’s coachhorse Staphylinoidea (Show more) See all related content

rove beetle, (family Staphylinidae), any member of a family of numerous widely distributed insects in the order Coleoptera that are known for their usually elongated, slender bodies, their short elytra (wing covers), and their association with decaying organic matter. With an estimated 46,000 to 55,400 extant and extinct species, it is one of the largest beetle families known.

Rove beetles are usually found around decaying animal and vegetable matter, preying on carrion-feeding insects. Most of them are slender and small (usually less than 3 mm, or 1/8 inch); the largest species, such as the devil’s coachhorse (Staphylinus olens), are usually no more than 25 mm (1 inch). The short, thick elytra protect the second, fully developed pair of flying wings. These functional wings can be unfolded rapidly from under the elytra when the beetle is ready for flight. They must be refolded carefully after use, however, often with the aid of both the abdomen and the legs, so as to fit under the elytra. When disturbed, the rove beetle raises the tip of its abdomen and may squirt a foul-smelling mist at its enemies. The wingless larvae resemble the adults.

Some large species are a brightly coloured black and yellow, thus resembling wasps; other rove beetles mimic soldier ants in both appearance and behaviour. Lomechusa and Atemeles of Europe and Xenodusa of North America live in ant or termite hives. They secrete a fluid eaten by the ants and in return are fed by the ants.

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