Retinula, [98]

Reuter on ventral tube, [192]

Rhabdom, [98]

Rhipipteryx, [337], [338]

Rhizotrogus egg-tubes, [138]

Rhodites rosae, [498], [527], [528], [531];

larva, [532];

parasite, [539]

Rhyacophilides, [483]

Rhyacophylax, [482]