| Author/Editor | Blassioli-Moraes, Maria Carolina; Laumann, Raul Alberto; Čokl, Andrej; Borges, Miguel | |
| Title | Vibratory signals of four neotropical stink bug species | |
| Type | članek | |
| Source | Physiol Entomol | |
| Vol. and No. | Letnik 30, št. 2 | |
| Publication year | 2005 | |
| Volume | str. 175-88 | |
| Language | eng | |
| Abstract | The stink bugs Acrostcrnum impicticorne, Euschi.stus heros, Piczodorus guildinii and Thyanta perditor (Heteroptera: Pentatomidae) feed and mate on the same host plants and constitute major components of the soybean pest complex in Brazil. During mating, they communicate with species and sex-specific vibratory signals whose spectral properties are characteristic of the subfamily Pentatominae. Songs differ between species in the titne structure and amplitude modulation of their units. The repertoire of A. impicticorne, E. heros and T. perditor fits into the scheme described for most investigated stink bugs: females call with a sequence of pulses that differ between species in their duration and repetition rate, and males respond with courtship songs of species-specific temporal structure and amplitude modulation of complex pulse trains. Female calling and male courtship songs are the main constituents of vibratory communication between sexes in the mating period. The other vibratory emissions appear to represent either transitional songs, support recognition during close-range courtship, or are invo(ved in male rivalry. The first recorded vibratory emissions of P. guilclinii confirm that the genus Piezodorus represents an exception within the Pentatominae. Irregularly repeated female vibratory signals of P. guilclinii do not trigger typical male courtship responses as they would in the small stink bugs Holco.stethu.s strictus and Murgantia histrionica. On the other hand, complex rivalry with extensive frequency modulation of pulses, as also described in Piezodorus lituratus, opens a new insight into the role of vibratory communication in stink bugs. | |
| Descriptors | HEMIPTERA ANIMAL COMMUNICATION SEX BEHAVIOR, ANIMAL VIBRATION SOYBEANS OSCILLOMETRY BRAZIL |