Robber flies vary in size from a tiny 3mm to a large 40mm of which we have about 500 species.
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Asilidae diversity can be attributed to their broad distribution, as most species tend to occupy a selective niche. Below: Microstylum sp
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As their common name implies, robber flies have voracious appetites and feed on a vast array of other arthropods, which may help to maintain a healthy balance between insect populations in various.
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Adults attack wasps, bees, dragonflies, grasshoppers, other flies, and some spiders who could be up to double their size. Below: Neolophonotus sp
Robber flies are particularly abundant in arid and sunny habitats, which are optimal conditions in which to observe their many morphs and behaviors.
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Some species are well adapted to desert climates, where they are known to thermoregulate in response to temperature variations throughout the day.
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