Contribution of different tarsal attachment devices to the overall attachment ability of the stink bug Nezara viridula

Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
Gianandrea SalernoStanislav N Gorb

Abstract

The tarsal attachment devices of the southern green stink bug Nezara viridula, a cosmopolitan pest of different crops, encompass a pair of claws, distal pretarsal smooth pulvilli, and a proximal hairy pad on the ventral basitarsus. To evaluate the role of these attachment devices in generating attachment, behavioural experiments testing locomotion of insects with ablated pulvilli, shaved hairs and cut-off claws were performed. Using traction force experiments, insect attachment performance was evaluated on artificial substrates characterised by different roughness and on two substrates with different surface energies in the air and under water. To examine the contact area of attachment devices during resting, pulling and inverted walking, intact insects and those without claws were video-recorded using a high-speed camera. The present data reveal a great involvement of pulvilli in insect attachment on all the tested surfaces, while the hairy pad seems to have a role in producing friction forces only on smooth surfaces and on surfaces with intermediate roughness. The hairy pad was revealed to be important in adhesion to hydrophobic substrates under water, a function that could be relevant for N. viridula insects in consideration...Continue Reading

References

Nov 21, 2000·Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology·S GorbM Scherge
Jul 1, 2006·The Journal of Experimental Biology·Walter Federle
Mar 12, 2008·Proceedings. Biological Sciences·Christofer J Clemente, Walter Federle
Oct 9, 2008·The Journal of Experimental Biology·James M R BullockWalter Federle
Mar 28, 2009·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Kerstin Koch, Wilhelm Barthlott
May 13, 2009·Journal of Morphology·Monika J B EberhardStanislav N Gorb
Apr 30, 2010·Journal of the Royal Society, Interface·E V GorbS N Gorb
Feb 8, 2011·Journal of Theoretical Biology·Alexander FilippovStanislav N Gorb
Dec 1, 2002·Integrative and Comparative Biology·Walter FederleRobert J Full
Dec 14, 2011·The Journal of Experimental Biology·Jonas O Wolff, Stanislav N Gorb
Aug 10, 2012·Proceedings. Biological Sciences·Naoe Hosoda, Stanislav N Gorb
Aug 30, 2012·Nature Methods·Caroline A SchneiderKevin W Eliceiri
Jul 6, 2014·Beilstein Journal of Nanotechnology·Lars HeepeStanislav N Gorb
May 11, 2017·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Gianandrea SalernoStanislav Gorb

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