Fireflies, fruit flies, and fungus gnats are insects with names starting with F, ranging from glowing beetles to tiny crop pests. Such names connect learners to insects and their roles in nature.
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This post covers insects that start with f, adding vocabulary that improves English with exact nature terms.
List of Insects That Start With F with Pictures
- Firefly
- Flea
- Fruit Fly
- Fungus Gnat
- Forest Bug
- Flesh Fly
- False Blister Beetle
- Flat Bark Beetle
- Field Cricket
- Fairyfly
- Four-Spotted Dragonfly
- Fiery Skipper Butterfly
- Flower Fly
- Forest Tent Caterpillar Moth
- Fawn Darner
- False Bombardier Beetle
- Fire-Colored Beetle
- Fijian Flower Beetle
- Forest Assassin Bug
- False Click Beetle
- Fairy Moth
- Feather-Winged Beetle
- Forest Shield Bug
- Fiji Damselfly
- Flea Beetle
- Formosan Termite
- False Chinch Bug
- Forest Queen Butterfly
- Forest Tent Caterpillar
- Fungus Beetle
- Flatid Planthopper
- Flesh Fly
- Flower Beetle
- Forest Bug Nymph
- Firefly Larva
- Flea Larva
- Fruit Fly Larva
- Fungus Gnat Larva
- Forest Tent Caterpillar Larva
- Formosan Termite Worker
- Four-Spotted Dragonfly Nymph
- Fiji Damselfly (Endangered)
- Forest Queen Butterfly (Endangered)
- Fire-Colored Beetle (Endangered species)
- Flatid Planthopper (Endangered species)
- Fijian Flower Beetle (Endangered)
- Feather-Winged Beetle (Endangered)
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Common Insects That Start With F
- Firefly
- Flea
- Fruit Fly
- Fungus Gnat
- Forest Bug
- Flesh Fly
- False Blister Beetle
- Flat Bark Beetle
- Field Cricket
- Fairyfly
Flying Insects That Start With F
- Firefly
- Fruit Fly
- Four-Spotted Dragonfly
- Fiery Skipper Butterfly
- Flower Fly
- Flesh Fly
- Forest Tent Caterpillar Moth
- Fawn Darner (Dragonfly)
- False Bombardier Beetle (winged)
- Fairyfly (tiny wasp)
Rare and Unique Insects Beginning With F
- Fire-Colored Beetle
- Fijian Flower Beetle
- Forest Assassin Bug
- False Click Beetle
- Fairy Moth
- Feather-Winged Beetle
- Forest Shield Bug
- Fiji Damselfly
Colorful Insects That Begin With F
- Fiery Skipper Butterfly
- Four-Spotted Dragonfly
- Flower Beetle
- Forest Queen Butterfly
- Fire-Colored Beetle
- Fijian Flower Beetle
- Flatid Planthopper (bright blue-green)
- Fawn Darner
Garden and Farm Insects Starting With F
- Flea Beetle
- Fruit Fly
- Field Cricket
- Formosan Termite
- False Chinch Bug
- Flower Fly
- Flat Bark Beetle
- Fungus Gnat
Dangerous or Harmful Insects That Start With F
- Flea (bites animals and humans)
- Fruit Fly (damages fruit crops)
- Formosan Termite (destroys wood)
- Flesh Fly (spreads disease)
- False Chinch Bug (crop pest)
- Forest Bug (sap-sucking pest)
- Flea Beetle (destroys plant leaves)
- Fungus Gnat (root damage in plants)
Pollinator and Beneficial Insects Beginning With F
- Firefly (part of food chains, indicator species)
- Flower Fly (pollinates crops and flowers)
- Fairyfly (controls pest eggs)
- Forest Tent Caterpillar Moth (important in forest ecosystems)
- Fiery Skipper Butterfly (pollinates nectar plants)
- Fawn Darner (controls mosquitoes)
- False Blister Beetle (beneficial decomposer)
Endangered Insects That Start With F
- Fiji Damselfly
- Forest Queen Butterfly
- Fire-Colored Beetle (certain species)
- Flatid Planthopper (specific rare species)
- Fijian Flower Beetle
- Feather-Winged Beetle (rare habitats)
Regional Insects Beginning With F (North America, Asia, Europe)
- Florida Harvester Ant (North America)
- Forest Bug (Europe)
- Formosan Termite (Asia)
- Four-Spotted Dragonfly (Europe, North America)
- Fijian Flower Beetle (Asia-Pacific)
- Fairyfly (worldwide, especially Europe/Asia)
- Flesh Fly (North America)
Lifecycle and Habitat of Insects That Start With F
- Firefly Larva (soil and leaf litter)
- Flea Larva and Pupa (in bedding, soil)
- Fruit Fly Larva (inside fruits)
- Fungus Gnat Larva (damp soil)
- Forest Bug Nymph (on trees)
- Formosan Termite Colony (underground nests)
- Four-Spotted Dragonfly Nymph (ponds)
Most Commonly Confused Insects Starting With F (Firefly vs. Glowworm, Flea vs. Tick)
- Firefly vs. Glowworm: Fireflies have wings and glow while flying; glowworms are wingless larvae that emit light.
- Flea vs. Tick: Fleas are insects with six legs; ticks are arachnids with eight legs.
- Flower Fly vs. Bee: Flower flies mimic bees but have no sting.
List of Insects That Start With F (A–Z Table)
- Fairyfly
- False Blister Beetle
- False Click Beetle
- False Chinch Bug
- Feather-Winged Beetle
- Fawn Darner
- Fire-Colored Beetle
- Firefly
- Fiery Skipper Butterfly
- Fijian Flower Beetle
- Fiji Damselfly
- Flat Bark Beetle
- Flatid Planthopper
- Flesh Fly
- Flea
- Flea Beetle
- Flower Fly
- Forest Assassin Bug
- Forest Bug
- Forest Queen Butterfly
- Forest Shield Bug
- Forest Tent Caterpillar Moth
- Formosan Termite
- Four-Spotted Dragonfly
- Fruit Fly
- Fungus Beetle
- Fungus Gnat
Frequently Asked Questions About Insects Starting With F
Which insect starting with F helps pollinate flowers?
Flower Fly and Fiery Skipper Butterfly are known pollinators.
What insect starting with F is harmful to crops?
Flea Beetle and Fruit Fly are major crop pests.
Are there endangered insects that start with F?
Yes, including the Fiji Damselfly and Forest Queen Butterfly.
What is the largest insect that starts with F?
The Four-Spotted Dragonfly is one of the largest.
What is the difference between a Firefly and a Glowworm?
Fireflies are winged beetles that glow in flight; glowworms are wingless larvae that produce light.
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