Predominantly Left-Dominant Mandibular Chirality in Coleoptera

Mathew L. Brust; W. Wyatt Hoback

doi:10.1649/072.070.0128

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Mathew L. Brust,¹ W. Wyatt Hoback²

¹Department of Biology Chadron State College, 1000 Main St. Chadron, NE 69337, U.S.A. mbrust@csc.edu
²Department of Entomology and Plant Pathology Oklahoma State University, 127 Noble Research Center Stillwater, OK 74078, U.S.A.

Abstract

Patterns of mandible chirality have been virtually unexplored in beetles, apart from a single study in 2010. Here we present the mandible chirality trends found in 58 beetle species representing the families Carabidae (52 species), Cerambycidae (three species), and Silphidae (three species) that display overlapping mandibles. Mandible chirality was not random in the groups examined, all of which exhibited a dominant trend towards left-superiority. The degree to which each taxonomic group displayed the left-superior trend differed, with tiger beetles showing the greatest dominance (99%) and longhorned beetles the weakest (71%).

Citation Download Citation

Mathew L. Brust and W. Wyatt Hoback "Predominantly Left-Dominant Mandibular Chirality in Coleoptera," The Coleopterists Bulletin 70(1), 181-184, (18 March 2016). https://doi.org/10.1649/072.070.0128

Received: 17 July 2015; Accepted: 1 January 2016; Published: 18 March 2016

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