Abai, MR

6th International Congress of DipterologyAcoustic signals in taxonomy of Agromyzidae andChloropidaeKanmiya, K.Biological Laboratory, School of Medicine, Kurume University, Fukuoka, JapanPast bioacoustic studies on the mating behavior of Acalyptrate flies wereonly restricted to a few genera of Tephritidae, Drosophilidae, andChloropidae. Males of preceding two families produce intermittent soundsby controlling free wing fanning. Males of chloropid genera, Lipara,Calamoncosis, Kurumemyia, Pseudeurina of Oscinellinae, andChryptonevra and Terusa of Chloropinae, produce substrate-bornevibratory sounds, which have said to be exclusively known in Diptera.Recently, I first recognized male acoustic signals in several genera ofAgromyzidae, Agromyza, Cerodontha, Chromatomyia, Liriomyza,Melanagromyza, and Nemorimyza. Their mating sounds are also substratebornevibration except for those of Chromatomyia horticola by wingfanning. In this paper, I additionally recorded mating sounds in chloropidgenera: Togechiphus and Elachiptereicus. For Agromyzidae, proposedenough data for separating Liriomyza-species, chinensis, bryoniae, sativae,and trifolii based on acoustic properties. These sounds are species-specificcourtship signals for female receptiveness. It seems probable that most ofplant-dwelling Acalyptrates make substrate-borne vibrations for courtshipsignals or sexual interaction. The mid-coxal protuberance associated withcontact between coxa and trochanter appears to be a mechanoreceptor todetect substrate-borne vibration.Key Words: mating behavior, acoustic signals, substrate-borne vibration,Diptera, Acalyptratae∗∗∗∗∗∗∗∗∗∗129