Abstract
Precopulatory behavior in male Nasonia vitripennis (Walker) while mounted on a female shows pulses of wing vibration of 435 Hz, averaging .46 s duration, with resting intervals averaging .33 s. In mating receptivity tests, absence of wings in males results in most females producing only male offspring. These results indicate that the vibration may act as a tactile stimulus to induce sexual receptivity in the female. Recordings of wing vibrations of male Pteromalus puparum (L.) mounted on a female reveal pulses of 280–400 Hz, averaging .39 s.
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