Stridulatory organs in Asian Holotrichia species (Coleoptera: Melolonthidae: Melolonthinae)
Sara Lariza Rivera-Gasperín and Miguel Ángel Morón
Elytral stridulatory organs in the Asiatic genus Holotrichia Hope are described. Structure and position of such organs suggest that sound is produced by males and females by rubbing the internal edge of the hind femur (plectrum) on the ridge elytral epipleura (pars stridens). Similar stridulatory structures were also found in some species of the closely related genera Sebakwe Péringuey, Microtrichia Brenske, Octoplasia Brenske, Heptelia Brenske, Amphitrichia Brenske, Heptophylla Motschulsky, Latipalpus Moser and Eotrichia Medvedev.