Common Name - -	Genus & Species
Oak bark beetle - -	Pseudopityophthorus pruinosus
Oak girdler - -	Agrilus laticornis
Oak leafroller - -	Archips semiferanus
Oak long-horned flat-body - -	Carcina quercana
Oak looper - -	Lambdina fiscellaria lambdina
Oak pinhole borer - -	Platypus cylindrus
Oak twig borer - -	Elaphidionoides villosus
Obliquebanded leafroller - -	Choristoneura rosaceana
Oblique-striped leafhopper - -	Erythroneura lawsoniana
Obscure root weevil - -	Sciopithes obscurus
Obscure scale - -	Melanaspis obscura
Obtuse sawyer - -	Monochamus obtusus
Oceanic field cricket - -	Teleogryllus oceanicus
Oecophorid - -	Promalactis suzukiella
Oecophorid moth - -	Agonopterix nervosa
Oecophorid moth - -	Barea consignatella
Oecophorid moth - -	Euchausia argentata
Oecophorid moth - -	Paracystola acroxantha
Oil palm bunch moth - -	Tirathaba mundela
Okitsu citrus cottony scale - -	Pulvinaria okitsuensis
Okra leafhopper - -	Amrasca biguttula
Old house borer - -	Hylotrupes bajulus
Old man dart moth - -	Agrotis vetusta
Old world swallowtail - -	Papilio machaon
Oleander pit scale - -	Asterolecanium pustulans
Oleuthreutid moth - -	Eucosma intacta
Olive aphid - -	Prociphilus oleae
Olive bark beetle - -	Phloeotribus scarabaeiodes
Olive blister beetle - -	Mylabris oleae
Olive bug - -	Teleonemia australis
Olive fruit fly - -	Bactrocera oleae
Olive midge - -	Dasineura oleae
Olive moth - -	Prays oleae
Olive orthezia - -	Orthezia olivicola
Olive psyllid - -	Euphyllura olivina
Olive pyralid moth - -	Euzophera pinguis
Olive scale - -	Parlatoria oleae
Olive seed fruit fly - -	Munromyia nudiseta
Olive thrips - -	Liothrips oleae
Olive weevil - -	Dyscerus perforatus
Olive whitefly - -	Aleurolobus olivinus
Olive-brown mealybug - -	Cataenococcus olivaceus
Olive-green hawk moth - -	Theretra japonica
Omnivorous leafroller - -	Platynota stultana
Omnivorous leaftier - -	Cnephasia longana
Omnivorous looper - -	Sabulodes caberata
Omnivorous tussock moth - -	Acyphas semiochrea
Onion aphid - -	Neotoxoptera formosana
Onion bulb fly - -	Eumerus amoenus
Onion fly - -	Delia florilega
Onion maggot - -	Hylemya servadeii
Onion maggot - -	Hylemya (=Delia) antiqua
Onion thrips - -	Thrips tabaci
Onion weevil - -	Ceutorhynchus jakovlevi
Orange dog - -	Papilio cresphontes
Orange dog - -	Papilio demodocus
Orange fruitborer - -	Isotenes miserana
Orange spiny whitefly - -	Aleurocanthus spiniferus
Orange tip - -	Anthocharis cardamines
Orange tortrix - -	Argyrotaenia citrana
Orange webworm - -	Dichomeris citrifoliella
Orangehumped maple worm - -	Symmerista leucitys
Orchard swallowtail - -	Papilio aegeus
Orchid beetle - -	Stethopachys formosa
Orchid diorymerellus weevil - -	Nassophasis orchidearum
Orchid grass thrips - -	Anaphothrips orchidaceus
Orchid pit scale - -	Asterolecanium litseae
Orchid scale - -	Aspidiotus chinensis
Orchid scale - -	Macrosiphum luteum
Orchid scale - -	Parlatoria proteus
Orchid scale - -	Pseudococcus microcirculus
Orchid weevil - -	Orchidophilus aterrimus
Orchid weevil - -	Tadius erirhinoides
Orchidfly - -	Eurytoma orchidearum
Oriental army ant - -	Dorylus orientalis
Oriental beetle - -	Blitopertha orientalis
Oriental beetle - -	Crioceris quatuordecimpunctata
Oriental carpenter moth - -	Cossus arenicolus
Oriental carpenter moth - -	Cossus japonica
Oriental cockroach - -	Blatta orientalis
Oriental fruit fly - -	Bactrocera dorsalis
Oriental garden fleahopper - -	Halticiellus insularis
Oriental hornet - -	Vespa orientalis
Oriental lappet - -	Gastropacha orientalis
Oriental leopard moth - -	Zeuzera leuconotum
Oriental scale - -	Aspidiotus orientalis
Oriental tea tortrix moth - -	Homona magnanima
Oriental thrips - -	Taeniothrips eucharii
Oriental tiger moth - -	Utetheisa lotrix
Oriental tobacco budworm - -	Helicoverpa assulta
Oriental tussock moth - -	Euproctis subflava
Oriental weevil - -	Alcidodes orientalis
Oriental yellow scale - -	Aonidiella orientalis
Ornate aphid - -	Myzus ornatus
Orthezia - -	Ortheziola vejdovskyi
Otitid fly - -	Euxesta quadrivittata
Oystershell scale - -	Quadraspidiotus marani