Antennal sensilla of the click beetle,limonius aeruginosus (OLIVIER) (COLEOPTERA: ELATERIDAE) |
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| Institution: | 1. University of Paris West Nanterre La Défense, Laboratory of Ethology, Cognition and Development (EA 3456), Nanterre, France;2. University of Liège, GIGA Neurosciences, Research group in Behavioral Neuroendocrinology, Liège, Belgium;1. Biology, St. Norbert College, De Pere, WI 54115, United States;2. Department of Biology, American University, Washington, DC 20016, United States;3. Department of Psychology, American University, Washington, DC 20016, United States |
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| Abstract: | Antennal sensilla typology, number and distribution of the click beetle Limonius aeruginosus (Olivier) (Coleoptera: Elateridae) were studied using scanning electron microscopy. The serrate antennae of both sexes of L. aeruginosus consist of the scape, pedicel and of the flagellum which is composed of 9 flagellomeres. In both sexes, 5 types of sensilla basiconica, 1 type of sensilla trichodea, 1 type of sensilla chaetica, 1 type of sensilla campaniformia and Böhm sensilla were distinguished. No remarkable sexual differences in the types, numbers and distribution of sensilla were found on the antennae, except for the sensilla basiconica type II. The average number of sensilla basiconica type II on the antennae of the male beetle surpassed that on the antennae of the female beetle (3562 and 108 pegs, respectively). It is suggested that this type of sensilla on the male beetles antennae is responsible for the reception of the sex pheromone produced by the female beetle. |
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