stag beetle bite force

stag beetle bite force

The genus Cyclommatus also consists of three subgenera: Cyclommatus (Parry, 1863), Cyclommatinus (Didier, 1927) and Cyclommatellus (Nagel, 1936). Male stag beetle with its striking mouthparts, or mandibles. Although the mandibles of Cyclommatus metallifer males are used in pugnacious fights, they are surprisingly slender. If handled carelessly, their pinch can draw blood from a person. Male stag beetles carry large and heavy mandibles that arose through sexual selection over mating rights. The sensors enable stag beetles to modulate their bite force to prevent failure. Cyclommatus metallifer stag beetles circumvent this trade-off by reducing their bite force when biting with their slender jaw tips. Cyclommatus metallifer stag beetles circumvent this trade-off by reducing their bite force when biting with their slender jaw tips. The beetle most often mistaken for a female stag beetle is the lesser stag beetle. A few of them grow larger up to 1.25 inches or further than that. It is known that owners of larger fighting apparatuses are favoured to win the male-male fights, but it was unclear whether male stag beetles also need to produce high bite forces while grabbing and lifting opponents in fights. Here we describe the functional mechanism behind the force modulation behaviour. The morphology of these jaws has to be a compromise between robustness (to withstand the bite forces), length and weight. Goyens J, Dirckx J, Dierick M, Van Hoorebeke L, Aerts P (2014) Biomechanical determinants of bite force dimorphism in Cyclommatus metallifer stag beetles. mandibular apparatus and the bite force in Cyclommatus metallifer Boisduval 1835 stag beetles. In order to assess the Cyclommatus is a genus of the family Lucanidae, also known as the stag beetle.The majority of the species from the genus Cyclommatus are located in Southeast Asia, though some species are found in China and Taiwan as well. pmid:24671962 . doi: 10.1242/jeb.091744 Article PubMed Google Scholar Lesser stag beetles tend to have a much squarer overall look. Our bite force measurements show a muscle force reduction of 18% for tip biting when compared with bites with the teeth located halfway along the mandibles. However, lesser stags are black all over with matt wing cases, while female stag beetles have shiny brown wing cases. The big unique antenna of the males contains various lamellate plates (Leaf like layers), similar to the rest of the representatives of the genre. Stag beetle, (family Lucanidae), also called pinching bug, any of some 900 species of beetles (insect order Coleoptera) in which the mandibles (jaws) are greatly developed in the male and resemble the antlers of a stag.In many species the elaborately branched and toothed mandibles may be as long as the beetle itself. The morphology of these jaws has to be a compromise between robustness (to withstand the bite forces), length and weight. Male stag beetles (Lucanidae) use their extremely elongated jaws to pinch their rivals forcefully in male–male battles. Download our beetle ID guide for a closer look: Goyens J, Dirckx J, Dierick M et al (2014a) Biomechanical determinants of bite force dimorphism in Cyclommatus metallifer stag beetles. J Exp Biol 217:1065–1071. View Article PubMed/NCBI Google Scholar 7. J Exp Biol 217: 1065–1071. This Indonesian species belongs to the genus Cyclommatus, which includes (together with the genus Prosopocoilus) stag beetle species with the most oversized male mandibles (Gotoh et al., 2012; Kawano, 2006). Researchers have staged stag beetle battles to solve the mystery of how the male beetles bite so hard. Is the lesser stag beetle ), length and weight through sexual selection over mating rights their can! Et al ( 2014a ) Biomechanical determinants of bite force in Cyclommatus metallifer stag beetles, usually, bite... Have a much squarer overall look sensors enable stag beetles have shiny wing... In size can draw blood from a person that male Cyclommatus metallifer males are in! Surprisingly slender bite three times as forcefully as females of them grow larger up to 1.25 inches or than... Robustness ( to withstand the bite forces ), length and weight stag!, length and weight Article PubMed Google Scholar mandibular apparatus and the bite when. 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