Opisthoxia descimoni 
Opisthoxia eusiraria 
Opisthoxia laticlava 
Opisthoxia lineata 
Opisthoxia metargyria 
Opisthoxia miletia 
Opisthoxia phrynearia 
Opisthoxia saturniaria 
Orange underwing 
Orange Wing 
Orange-barred carpet moth 
Orange-spotted carpet moth 
Organopoda acmaea 
Oriental orange banded green geometer moth 
Ornithospila submonstrans 
Ornithospila succincta 
Orothalassodes hypocrites 
Orthocabera similaria 
Orthonama effluata 
Ourapteryx claretta 
Ourapteryx picticaudata 
Oxychora batis 
Oxydia augusta 
Oxydia flavidula