Ommatophora luminosa 
Omnivorous leafroller moth 
Omnivorous Looper 
Omnivorous Tussock Moth 
Omphalocera cariosa 
Once-married underwing 
One-eyed Sphinx 
One-lined sparganothis moth 
One-pip policeman 
One-spotted Prepona 
One-spotted variant moth 
Onega clearwing 
Onythes pallidicosta 
Onythes roseidorsata 
Oospila latimargo 
Oospila quinquemaculata 
Opharus albijuncta 
Ophisma basigutta 
Ophisma tropicalis 
Ophiusa parcemacula 
Ophiusa trapezium 
Ophthalmis lincea 
Ophthalmitis basiscripta 
Ophthalmitis rufilauta