ARRANGEMENT FOR GRAPHIC RECORDING OF ACOUSTIC AND VIBRATORY BEHAVIOUR OF A MALE EPHIPPIGER.

R. G. Busnel, Editor, Acoustic Behavior of Animals, Elsevier, 1963

(1) Microphone, (2) Insect, (3) Plant acting as substrarum, (4) Piezoelectric detector connected by a wire to the plant, (5)-(6) Amplifiers, (7) Galvanometer recording with pen on moving paper.