title: Morphology and Distribution of Sensilla on the Antennae of Hylamorpha elegans Burmeister (Coleoptera: Scarabaeidae).
abstract: Considering that sensilla constitute important functional elements of sensory systems in insects, the aim of this study was to determine the type and distribution of sensilla in the antennae of Hylamorpha elegans Burmeister examined by scanning electron microscopy. Hylamorpha elegans antennae are lamellate and consist of the scape, pedicel, and flagellum. The antennal club of this beetle consists of three terminal plates: proximal, middle, and distal lamellae. Four types of sensilla were observed in the lamellae from both sexes: sensilla trichoidea, chaetica, coeloconica, and placodea. Antennal length was larger in males than in females, and significant sexual variation in the number of sensilla placodea and sensilla coeloconica was observed.
authors.affiliation: Lab. de Química Ecológica, Depto de Ciencias Químicas y Recursos Naturales, Univ de La Frontera, 4811230, Temuco, La Araucanía, Chile. ana.mutis@ufrontera.cl.
authors.forename: A
authors.initials: A
authors.lastname: Mutis
authors.affiliation: Lab Interacciones Insecto-Planta, Instituto de Biología Vegetal y Biotecnología, Univ de Talca, Talca, Chile.
authors.forename: R
authors.initials: R
authors.lastname: Palma
authors.affiliation: Lab. de Química Ecológica, Depto de Ciencias Químicas y Recursos Naturales, Univ de La Frontera, 4811230, Temuco, La Araucanía, Chile.
authors.forename: L
authors.initials: L
authors.lastname: Parra
authors.affiliation: Depto de Ciencias Químicas y Recursos Naturales, Univ de La Frontera, Temuco, La Araucanía, Chile.
authors.forename: M
authors.initials: M
authors.lastname: Alvear
authors.affiliation: Dept of Entomology, Michigan State Univ, East Lansing, MI, USA.
authors.forename: R
authors.initials: R
authors.lastname: Isaacs
authors.affiliation: Instituto de Ecología, Xalapa, Veracruz, Mexico.
authors.forename: M
authors.initials: M
authors.lastname: Morón
authors.affiliation: Lab. de Química Ecológica, Depto de Ciencias Químicas y Recursos Naturales, Univ de La Frontera, 4811230, Temuco, La Araucanía, Chile.
authors.forename: A
authors.initials: A
authors.lastname: Quiroz
mesh_terms: D000818:Animals; D057506:Arthropod Antennae; D001517:Coleoptera / Q000033:anatomy & histology*; D005260:Female; D008297:Male; D008855:Microscopy, Electron, Scanning; D058618:Sensilla
keywords: Antenna; morphology; scanning electron microscopy; sensilla