emerald, downy - flunkey, feathered
- emerald, downy
- emerald, Essex
- emerald, northern
- emperor, large
- emperor, lesser purple
- emperor, purple
- emperors
- engraver, Douglas-fir
- engraver, fir
- engraver, hackberry
- engraver, pine
- entognathes
- ephemerans
- ermel, Adkin's apple
- ermel, Curtis' ash-bud
- ermel, few-spotted
- ermels
- ermine, buff
- ermine, water
- ermine, white
- ermines, small
- eye, pearly
- fanner, allied
- fanners
- feeder, blossom
- festoon
- fields
- firebrat
- fireworm
- fireworm, black-headed
- fish-killer, giant
- flat-body, Blunt's
- flat-body, brown brindled
- flat-body, cow-parsnip
- flat-body, lesser wainscot
- flat-body, ruddy ochreous
- flea, bat
- flea, bear
- flea, cat
- flea, dog
