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Tarsal claws, which are common attachment devices in arthropods, interlock with the surface irregularities of the substrata. Most insects have two tarsal claws, but the larvae of some aquatic insects, such as Ephemeroptera and Trichoptera, bear only one claw on their tarsi. The range of surface roughness that is sufficient for the function of the single claws of aquatic invertebrates has not yet been...
Superhydrophobic surfaces prevent certain body parts of semiaquatic and aquatic insects from getting wet while submerged in water. The air layer on these surfaces can serve the insects as a physical gill. Using scanning electron microscopy, we investigated the morphology of air‐retaining surfaces in five insect species with different levels of adaptation to aquatic habitats. We found surfaces with...
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