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Morphology and Distribution of Sensilla on the Antennae of Hylamorpha elegans Burmeister (Coleoptera: Scarabaeidae) |
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| Authors: | A Mutis R Palma L Parra M Alvear R Isaacs M Morón A Quiroz |
| Affiliation: | 1. Lab. de Química Ecológica, Depto de Ciencias Químicas y Recursos Naturales, Univ de La Frontera, 4811230, Temuco, La Araucanía, Chile 2. Lab Interacciones Insecto-Planta, Instituto de Biología Vegetal y Biotecnología, Univ de Talca, Talca, Chile 3. Depto de Ciencias Químicas y Recursos Naturales, Univ de La Frontera, Temuco, La Araucanía, Chile 4. Dept of Entomology, Michigan State Univ, East Lansing, MI, USA 5. Instituto de Ecología, Xalapa, Veracruz, Mexico |
| 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. |
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