Index - Insects
S
- Saddleback looper
- Saddled prominent
- Satin moth
- Seedling debarking weevil
- Sequoia pitch moth
- Silverspotted tiger moth
- Smaller European elm bark beetle
- Small pine looper
- Speckled green fruitworm
- Spring cankerworm
- Spruce beetle
- Spruce bud moth
- Spruce bud scale
- Spruce budworm
- Spruce budworm fire bracon (suggested name)
- Spruce climbing cutworm
- Spruce coneworm
- Spruce fir looper
- Spruce needleworm, Paler dolichomia moth
- Spruce seed moth
- Spruce spider mite
- Spruce tip moth; redstriped needleworm
- Spruce webspinning sawfly
- Strawberry root weevil
- Striped ambrosia beetle
- Sugar maple borer
- Swaine jack pine sawfly
Latin
- Sabulodes edwardsata (Hulst)
- Saperda calcarata Say
- Saperda populnea moesta LeConte
- Sarcophaga aldrichi Parker
- Scolytus multistriatus (Marsham)
- Semiothisa sexmaculata (Packard)
- Sesia tibialis (Harris)
- Sparganothis acerivorana MacKay
- Stenoporpia pulmonaria satisfacta (Barnes and McDunnough)
- Synanthedon sequoiae (Hy. Edw.)
- Synaxis pallulata (Hulst)
- Syndemis afflictana Walker
- Syngrapha alias (Ottolengui)
- Syngrapha celsa (Henry Edwards)