Dorsum, [100]

Dragon-flies, [409]

Drakes, [441]

Drepanepteryx phalaenoides, [453], [468];

wings, [468]

Drones, [499]

Drummers, [237]

Dubois on decapitated Mantis, [250]

Duchamp on egg-capsule of cockroach, [228]

Ductus ejaculatorius, [140]