Pavlovcic P, Cokl A
Department for Invertebrate Physiology, National Institute of Biology, Vecna pot 111, P.O. Box 141, SI-1000, Ljubljana, Slovenia
Behav Processes. 2001 Mar 13;53(1-2):65-73. doi: 10.1016/s0376-6357(00)00144-3.
Songs emitted during mating by male and female Holcostethus strictus were recorded as substrate vibrations. Spectra of the vibrational signals have a dominant frequency peak between 100 and 260 Hz and in this respect reflect the general characteristic of the family Pentatomidae. Songs of H. strictus differ from the song repertoire of the southern green stink bug Nezara viridula (L.) (Pentatomidae) in many respects. The female calling and courtship songs differ in echeme and phrase duration. The male calling song is composed of spectrally different subunits. The male courtship song is characterised by three types of spectrally and temporally different echemes. The male copulatory song is composed of echemes of two types, which constitute a phrase of less regular temporal structure. In H. strictus, males start to sing first and female songs are less complex than in N. viridula. The female calling song is evoked by male calling and does not trigger male response. The female and male courtship song phrases are superimposed on one another and we have not observed any obvious regularity in their exchange. The possible role of different songs in H. strictus is discussed and compared with that in other pentatomide landbug species.
雄性和雌性窄胸臭虫（Holcostethus strictus）在交配期间发出的歌声被记录为基质振动。振动信号的频谱在100至260赫兹之间有一个主导频率峰值，在这方面反映了蝽科（Pentatomidae）的一般特征。窄胸臭虫的歌声在许多方面与南方绿蝽（Nezara viridula (L.)，蝽科）的歌声曲目不同。雌性的求偶叫声和求偶歌声在音质和乐句时长上有所不同。雄性的求偶叫声由频谱不同的亚单位组成。雄性的求偶歌声具有三种频谱和时间上不同的音质特征。雄性的交配歌声由两种类型的音质组成，构成了一个时间结构不太规则的乐句。在窄胸臭虫中，雄性先开始唱歌，且雌性的歌声比南方绿蝽的歌声更简单。雌性的求偶叫声由雄性的求偶叫声引发，不会引发雄性的反应。雌性和雄性的求偶歌声乐句相互叠加，我们在它们的交替中没有观察到任何明显的规律。文中讨论了窄胸臭虫不同歌声可能的作用，并与其他蝽科陆生蝽类物种的歌声作用进行了比较。
