English: Cicada tymbals: sound-producing organs and musculature.
a, Body of male Cicada from below, showing cover-plates of musical organs;
b, From above showing tymbals (drums), natural size;
c, Section showing muscles which vibrate tymbals (magnified);
d, A tymbal at rest;
e, Thrown into vibration (as when cicada is singing), more highly magnified.
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Captions
Cicada tymbals: sound-producing organs and musculature.