5 insects starting with the letter F — each with origin, classification, and notes.
If you've been searching for insects that start with F, you'll find 5 detailed insects below. We're not interested in giving you only a list of names — every entry on this page links to a full profile with the kind of detail you'd actually want to know.
For insects, that means taxonomy, habitat, diet, life cycle, and ecological role.
| Fire Ant | Firefly | Flea | Froghopper |
| Fruit Fly |
An aggressive, venom-injecting red-brown ant whose painful sting produces a burning sensation and a characteristic white pustule — one of the world's most damaging invasive insects, responsible for billions in annual agricultural and ecological losses.
A bioluminescent beetle whose flashing courtship signals light up summer evenings, with each species using a distinctive flash pattern to find mates.
A wingless blood-feeding parasite that jumps astonishing distances relative to its size — agent of the medieval Black Death, perpetual pet nuisance, and one of evolution's most successful designs.
The world's greatest jumper relative to body size — the common froghopper can jump 70 cm straight up, accelerating at 400 g, which is greater than the force experienced by a fighter pilot in a dogfight; the larvae are hidden inside "cuckoo spit" — the white froth seen on plant stems each spring.
A small fly species (Drosophila melanogaster) that became the most important laboratory animal in genetics research — the workhorse of 20th-century genetics, with much of modern biology built on fruit fly studies.
That's our current list of insects starting with the letter F. We add new entries every week — if you have a favorite insect starting with F that isn't on this page, let us know and we'll write it up.
Looking for more? Try insects that end with F, or contain F anywhere in the name.