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Stable fly (Stomoxys calcitrans) foot, animated coloured scanning electron micrograph (SEM). The two claws are used to grip rough surfaces. The hairy adhesive pads, or pulvilli (beneath the claws), allow the fly to cling to smooth surfaces. This fly feeds on the blood of mammals and is a significant pest of livestock. For a close-up of a hairy pulvillus see image number Z340 0887.
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