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Template:POTD/2011-04-15

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Robber fly eating a beetle
A robber fly (Pegesimallus species shown), an insectivorous insect, feeding on a beetle. There are about 7,100 species of robber flies, all of which use a proboscis to stab and inject victims with saliva containing neurotoxic and proteolytic enzymes that paralyze and digest the insides; the fly then sucks the liquefied meal through the proboscis.Photo: Muhammad Mahdi Karim