Vibrations and predatory behaviour of Plectrocnemia larvae (Trichoptera).

This work analyses the effects of vibrations transmitted across the net on the predatory behaviour of the Plectrocnemia conspersa larvae (Trichoptera). The variations in the frequency has a more marked effect than variations in amplitude especially on the stage 2 (orientation and displacement towards the lure) and on the stage 3 (capture of the lure with mandibles).