Nygmia xanthomela 
Nymphidium caricae 
Nyodes acatharta 
Nystalea parsoni 
Oak Beauty 
Oak Beauty 
Oak Bent-Wing 
Oak besma 
Oak blotch miner moth 
Oak Eggar 
Oak Gall Snout Moth 
Oak Hawk-moth 
Oak hook-tip 
Oak Lantern 
Oak Leaffolder 
Oak Leafshredder Moth 
Oak marbled brown 
Oak Processionary 
Oberthür's grizzled skipper 
Oblique Dart 
Oblique Heterocampa 
Oblique-banded Leaf Roller 
Obrina Olivewing 
Obscure sphinx