INSECTS

7-letter Insects

Every insect on this page is exactly 7 letters long — full profile for each.

Looking for 7-letter insects? Here are 10 insects that fit — each linked to a full profile.

Letters are counted across the whole name with spaces, hyphens, apostrophes, and diacritics excluded. "Apple Pie" is 8 letters; "Boeuf Bourguignon" is 16.

Table of contents 10 entries
BlowflyCricketCutwormFire Ant
FireflyKatydidLadybugNo-see-um
Pill BugTermite

List of 7-letter Insects

    1

    Blowfly

    Calliphora vomitoria

    A metallic blue-green fly whose larvae (maggots) are the primary decomposers of carrion — ecologically vital as recyclers of dead matter, useful in forensic entomology, and controversial as both medical tool and livestock pest.

    2

    Cricket

    Acheta domesticus

    A nocturnal insect known for the male's incessant chirping, originally from Asia and now naturalized worldwide as a pet-food, fishing-bait, and human-food crop.

    3

    Cutworm

    Agrotis segetum

    The soil-dwelling caterpillar larvae of noctuid moths — one of the most destructive garden and agricultural pests, cutting seedlings off at soil level overnight, yet the adult moths are harmless and often beautiful.

    4

    Fire Ant

    Solenopsis invicta

    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.

    5

    Firefly

    Photinus pyralis (common Eastern firefly)

    A bioluminescent beetle whose flashing courtship signals light up summer evenings, with each species using a distinctive flash pattern to find mates.

    6

    Katydid

    Tettigoniidae (family — over 8,000 species)

    A green, leaf-mimicking long-horned insect closely related to crickets and grasshoppers, with an iconic raspy "katy-did, katy-didn't" night call from male wing-rubbing.

    7

    Ladybug

    Coccinella septempunctata (seven-spotted ladybug)

    A small, dome-shaped beetle in red, orange, or yellow with black spots — beloved by gardeners as a voracious aphid predator and a symbol of good luck across cultures.

    8

    No-see-um

    Ceratopogonidae (family — many species; common ones include Culicoides spp.)

    A tiny biting midge so small it slips through standard window screens, leaving disproportionately painful itchy welts — the bane of summer evenings in coastal and wetland areas.

    9

    Pill Bug

    Armadillidium vulgare

    A land-dwelling crustacean — not an insect but an isopod — that rolls into a perfect sphere when threatened, lives in moist soil and leaf litter, and plays an essential role in breaking down decaying plant matter.

    10

    Termite

    Reticulitermes flavipes (Eastern subterranean termite)

    A wood-eating social insect — actually a derived cockroach — that builds elaborate colonies, decomposes vast quantities of plant matter, and causes billions in property damage annually.

About 7-letter insects

That's our current list of insects with exactly 7 letters. Need a different length? Try the browse-by-length pills in the sidebar, or combine with a starting letter — for example, 7-letter insects that start with A.