Oceanic bugs, [552]

Ocelli, [325];

O. compositi, [325]

Ochthiphilidae, [504]

Ocneria, [407] n.;

O. dispar, [408]

Ocnerodes, [489]

Ocnogyna, [409]

Ocypus olens, [225]

Odontolabis sinensis, [193]