Uptake of liquid from wet surfaces by the hairy proboscis




2015.05.18 21:44

The tip region of the butterfly Asian comma proboscis was observed, especially two microstructures; the intake slits through which liquid passes into the proboscis and the brush-like sensilla styloconica. During liquid feeding, the sensilla styloconica region accumulates liquid by pinning the air-liquid interface to the tips of the sensilla styloconica. The flow that passes through the sensilla styloconica region shows a parabolic velocity profile, and the corresponding flow rate is proportional to the cubed length of the sensilla styloconica.  This results demonstrated that the sensilla styloconica promotes the uptake of liquid from wet surfaces. 

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