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In the course of their evolution, insects developed diverse supplementary structures on their legs to enable them to grip a variety of substrata. Sufficient grip is required to generate propulsive forces by friction or/and interlocking with the substrate during locomotion. Highly specialized adhesive organs provide a mechanism of attachment to relatively smooth surfaces. Additionally, insect legs are supplemented by rather sharp-pointed claws and tibial spurs, which are structures adapted to interact with diverse rough textures. From a biomechanical perspective, one single claw terminating the tarsus would be sufficient for generating a grip on rough substrates. Interestingly, the majority of insects and spiders possess paired claws at the pretarsus, which is rather difficult to explain for tribological reasons. Using numerical modeling, this paper studies the attachment forces generated by gripping systems consisting of different numbers of claws on the craterous substrate texture. A numerical model is studied based on elastically connected shells constructed using movable digital automata and a numerically generated random surface. The solitary claw is not the optimal solution because of the instability of its motion along the peculiarities of the random terrain. A systematic study of the sequence of numerical simulations reveals that the optimal number of claws is between two and three, with a slight preference for two. This conclusion is drawn from direct qualitative observations of the numerically simulated dynamic scenarios and quantitative calculations of the forces and other values obtained from the simulations.
Winand J, Gorb S N, Büscher T H. Gripping performance in the stick insect Sungaya inexpectata in dependence on the pretarsal architecture. J Comp Physiol A 209(2): 313–323 (2023)
Stork N E. The adherence of beetle tarsal setae to glass. J Nat Hist 17(4): 583–597 (1983)
Stork N E. A comparison of the adhesive setae on the feet of lizards and arthropods. J Nat Hist 17(6): 829–835 (1983)
Bauchhenß E. Pulvilli of Calliphora erythrocephala (Diptera, Brachycera) as adhesive organs. Zoomorphologie 93(2): 99–123 (1979)
Walker G, Yulf A B, Ratcliffe J. The adhesive organ of the blowfly, Calliphora vomitoria: A functional approach (Diptera: Calliphoridae). J Zool 205(2): 297–307 (1985)
Gorb S N. The design of the fly adhesive pad: Distal tenent setae are adapted to the delivery of an adhesive secretion. P Roy Soc Lond B Bio 265(1398): 747–752 (1998)
Gillett J D, Wigglesworth V B. The climbing organ of an insect, Rhodnius prolixus (Hemiptera; Reduviidœ). P Roy Soc Lond B Bio 111(772): 364–376 (1932)
Federle W, Rohrseitz K, Hölldobler B. Attachment forces of ants measured with a centrifuge: Better “wax-runners” have a poorer attachment to a smooth surface. J Exp Biol 203(3): 505–512 (2000)
Gorb S, Jiao Y K, Scherge M. Ultrastructural architecture and mechanical properties of attachment pads in Tettigonia viridissima (Orthoptera Tettigoniidae). J Comp Physiol A 186: 821–831 (2000)
Jiao Y K, Gorb S, Scherge M. Adhesion measured on the attachment pads of Tettigonia viridissima (Orthoptera, Insecta). J Exp Biol 203(12): 1887–1895 (2000)
Stork N E. Experimental analysis of adhesion of Chrysolina polita (Chrysomelidae: Coleoptera) on a variety of surfaces. J Exp Biol 88(1): 91–108 (1980)
Stork N E. Adaptations of arboreal carabids to life in trees. Acta Phytopathol Hun 22(1–4): 273–291 (1987)
Ishii S. Adhesion of a leaf feeding ladybird epilachna vigintioctomaculta (Coleoptera: Coccinellidae) on a virtically smooth surface. Appl Entomol Zool 22(2): 222–228 (1987)
Eisner T, Aneshansley D J. Defense by foot adhesion in a beetle ( Hemisphaerota cyanea). P Natl A Sci India B 97(12): 6568–6573 (2000)
Dai Z D, Gorb S N, Schwarz U. Roughness-dependent friction force of the tarsal claw system in the beetle Pachnoda marginata (Coleoptera, Scarabaeidae). J Exp Biol 205(16): 2479–2488 (2002)
Gladun D, Gorb S N. Insect walking techniques on thin stems. Arthropod-Plant Inte 1: 77–91 (2007)
Bußhardt P, Kunze D, Gorb S N. Interlocking-based attachment during locomotion in the beetle Pachnoda marginata (Coleoptera, Scarabaeidae). Sci Rep-UK 4: 6998 (2014)
Song Y, Dai Z D, Wang Z Y, Ji A H, Gorb S N. The synergy between the insect-inspired claws and adhesive pads increases the attachment ability on various rough surfaces. Sci Rep-UK 6: 26219 (2016)
Federle W, Brainerd E L, McMahon T A, Hölldobler B. Biomechanics of the movable pretarsal adhesive organ in ants and bees. P Natl A Sci India B 98(11): 6215–6220 (2001)
Frantsevich L, Gorb S. Arcus as a tensegrity structure in the arolium of wasps (Hymenoptera: Vespidae). Zoology 105(3): 225–237 (2002)
Frantsevich L, Gorb S. Structure and mechanics of the tarsal chain in the hornet, Vespa crabro (Hymenoptera: Vespidae): Implications on the attachment mechanism. Arthropod Struct Dev 33(1): 77–89 (2004)
Seifert P, Heinzeller T. Mechanical, sensory and glandular structures in the tarsal unguitractor apparatus of Chironomus riparius (Diptera, Chironomidae). Zoomorphology 109(2): 71–78 (1989)
Radnikow G, Bässler U. Function of a muscle whose apodeme travels through a joint moved by other muscles: why the retractor unguis muscle in stick insects is tripartite and has no antagonist. J Exp Biol 157(1): 87–99 (1991)
Bußhardt P, Gorb S N, Wolf H. Activity of the claw retractor muscle in stick insects in wall and ceiling situations. J Exp Biol 214(10): 1676–1684 (2011)
Bußhardt P, Gorb S N. Walking on smooth and rough ground: Activity and timing of the claw retractor muscle in the beetle Pachnoda marginata peregrina (Coleoptera, Scarabaeidae). J Exp Biol 216(2): 319–328 (2013)
Bußhardt P, Gorb S N. Ground reaction forces in vertically ascending beetles and corresponding activity of the claw retractor muscle on smooth and rough substrates. J Comp Physiol A 200(5): 385–398 (2014)
Gorb S N. Design of insect unguitractor apparatus. 3.0.CO;2-B">J Morphol 230(2): 219–230 (1996)
Filippov A E, Nadein K, Gorb S N, Kovalev A. Bio-bearings: Numerical model of the solid lubricant in the leg joints of insects. Tribol Lett 72(1): 11 (2024)
Filippov A E, Nadein K, Gorb S N, Kovalev A. Large-scale numerical simulation of the solid lubricant behavior in the leg joints of insects. Adv Theory Simul 7(6): 2301236 (2024)
Salerno G, Rebora M, Piersanti S, Gorb E, Gorb S. Mechanical ecology of fruit-insect interaction in the adult Mediterranean fruit fly Ceratitis capitata (Diptera: Tephritidae). Zoology 139: 125748 (2020)
Salerno G, Rebora M, Piersanti S, Matsumura Y, Gorb E, Gorb S. Variation of attachment ability of Nezara viridula (Hemiptera: Pentatomidae) during nymphal development and adult aging. J Insect Physiol 127: 104117 (2020)
Petersen D S, Kreuter N, Heepe L, Büsse S, Wellbrock A H J, Witte K, Gorb S N. Holding tight on feathers—Structural specializations and attachment properties of the avian ectoparasite Crataerina pallida (Diptera, Hippoboscidae). J Exp Biol 221(13): jeb179242 (2018)
Gorb E V, Gorb S N. Anti-adhesive effects of plant wax coverage on insect attachment. J Exp Bot 68(19): 5323–5337 (2017)
Gorb E V, Dai Z D, Gorb S N. Micromorphology of stem surface in three species of Bambusa (Poaceae, Bambusoideae) with a focus on its impact on plant-insect interactions. Flora 230: 14–25 (2017)
Barthlott W, Wollenweber E. Zur Chemistry and taxonomic significance of epicuticlar waxes and similar secretions. Trop Subtrop Pflanzenwelt 32: 7–67 (1981)
Curtis J D, Lersten N R. Heterophylly in Populus grandidentata (Salicaceae) with emphasis on resin glands and extrafloral nectaries. Am J Bot 65(9): 1003–1010 (1978)
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