Author/Editor		Pavlovčič, P; Čokl, A
Title		Songs of Holcostethus strictus (Fabricius): a different repertoire among landbugs (Heteroptera: Pentatomidae)
Type		članek
Source		Behav Processes
Vol. and No.		Letnik 53
Publication year		2001
Volume		str. 65-73
Language		eng
Abstract		Songs emitted during mating by male and female Holcosthethus strictus were recorded as substrate vibrations. Spectra of the vibrational signals have a dominant frequency peak between 1000 and 200 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. Nazara 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 constituate a phrase of less regular temporal structure. In H. strictus, males start to sing first and female songs are less complexes than in N. viridula. The female calling some 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 discissed and compared with that in other pentatomide landbug species.
Descriptors		ANIMAL COMMUNICATION BEHAVIOR, ANIMAL VIBRATION INSECTS OSCILLOMETRY