In this paper we describe acoustically the wing-fanning behaviour showed by the male of the braconid Psyttalia concolor towards females and other conspecific males. Psyttalia concolor is a synovigenic koinobiont larval-pupal endoparasitoid of many Tephritidae, used in olive crops to control the olive fruit fly, Bactrocera oleae. In this braconid male wing fanning produces a courtship song characterised by sequences of homogenous pulses with harmonic structure and a fundamental frequency of about 180 Hz. Song parameters can vary according to the behavioural context. Statistically significant differences, both in terms of pulse frequency and duration, characterise fanning towards females in comparison with male-male approaches. Moreover, the pulse duration is associated with the fanning song displayed before a successful courtship. Our observations allowed us to define the airborne component of the sound and to definitely confirm the exclusive role of the wings in signal production within sexual communication in P. concolor.

Canale, A.; Benelli, G.; Lanzo, F.; Giannotti, P.; Mazzoni, V.; Lucchi, A. (2013). The courtship song of fanning males in the fruit fly parasitoid Psyttalia concolor (Szépligeti) (Hymenoptera: Braconidae). BULLETIN OF ENTOMOLOGICAL RESEARCH, 103 (3): 303-309. doi: 10.1017/S0007485312000715 handle: http://hdl.handle.net/10449/22216

The courtship song of fanning males in the fruit fly parasitoid Psyttalia concolor (Szépligeti) (Hymenoptera: Braconidae)

Mazzoni, Valerio;
2013-01-01

Abstract

In this paper we describe acoustically the wing-fanning behaviour showed by the male of the braconid Psyttalia concolor towards females and other conspecific males. Psyttalia concolor is a synovigenic koinobiont larval-pupal endoparasitoid of many Tephritidae, used in olive crops to control the olive fruit fly, Bactrocera oleae. In this braconid male wing fanning produces a courtship song characterised by sequences of homogenous pulses with harmonic structure and a fundamental frequency of about 180 Hz. Song parameters can vary according to the behavioural context. Statistically significant differences, both in terms of pulse frequency and duration, characterise fanning towards females in comparison with male-male approaches. Moreover, the pulse duration is associated with the fanning song displayed before a successful courtship. Our observations allowed us to define the airborne component of the sound and to definitely confirm the exclusive role of the wings in signal production within sexual communication in P. concolor.
Acoustic cues
Mating system
Opiinae
Parasitic wasp
Sensory channels
Wing fluttering
Bioacustica
Sistemi riproduttivi
Settore AGR/11 - ENTOMOLOGIA GENERALE E APPLICATA
2013
Canale, A.; Benelli, G.; Lanzo, F.; Giannotti, P.; Mazzoni, V.; Lucchi, A. (2013). The courtship song of fanning males in the fruit fly parasitoid Psyttalia concolor (Szépligeti) (Hymenoptera: Braconidae). BULLETIN OF ENTOMOLOGICAL RESEARCH, 103 (3): 303-309. doi: 10.1017/S0007485312000715 handle: http://hdl.handle.net/10449/22216
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