Bug Identifier

Bug Encyclopedia

Search and identify bugs & insects — beetles, butterflies, moths, ants, bees, spiders and more — with size, habitat, danger, behavior, and how to tell them apart.

Armyworm Moth

Armyworm Moth

A plain tan to reddish-brown moth whose caterpillars are famous for marching in large groups across fields, stripping grasses and grain crops as they move.

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Bumblebee Moth

Bumblebee Moth

A fuzzy, day-flying sphinx moth that hovers at flowers like a bee, with mostly clear wings and a black-and-yellow banded body that mimics a bumblebee.

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Sphinx Moth

Sphinx Moth

A large, streamlined, fast-flying moth with narrow triangular wings and a robust, tapering body, famous for hovering at flowers at dusk like a hummingbird.

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Atlas Moth

Atlas Moth

One of the largest moths in the world by wing surface area, the Atlas Moth is a giant reddish-brown silkmoth with striking triangular wingtip patches that resemble the heads of snakes.

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Io Moth

Io Moth

A striking yellow (male) or reddish-brown (female) silkmoth instantly recognizable by the large, dark eyespot ringed in blue and black on each hindwing, flashed suddenly to startle predators.

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Diamondback Moth

Diamondback Moth

A small, slender grey-brown moth named for the pale, diamond-shaped pattern that appears down its back when the wings are folded, best known as a widespread pest of cabbage and other brassica crops.

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Cinnabar Moth

Cinnabar Moth

A striking black-and-red day-flying moth whose boldly banded orange-and-black caterpillars feed conspicuously on ragwort, sequestering plant compounds as a chemical defense advertised by their vivid warning colors.

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Peppered Moth

Peppered Moth

A medium-sized moth with finely speckled black-and-white wings that camouflage it against lichen-covered bark, world-famous as a textbook example of evolution in action during the industrial era.

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Vaporer Moth

Vaporer Moth

A tussock moth with dramatic sexual differences: the male is a small rusty-brown day-flying moth with a white wing spot, while the female is a flightless, wingless gray sac-like insect that never leaves her cocoon.

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Bogong Moth

Bogong Moth

A modest brown, mottled moth famous for its extraordinary mass seasonal migration across thousands of kilometers to cool alpine caves in the Australian mountains, forming one of the largest known insect migrations by biomass.

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Cecropia Moth

Cecropia Moth

North America's largest native moth, the Cecropia is a spectacular giant silkmoth with reddish-brown wings marked by crescent-shaped white spots and bold bands of red, white, and tan.

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Salt Marsh Moth

Salt Marsh Moth

A fluffy white tiger moth with black-speckled forewings and an orange-and-black abdomen, best known through its fast-moving, densely bristled caterpillar that wanders widely in late summer.

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Giant Leopard Moth

Giant Leopard Moth

A striking white moth patterned with bold, hollow black rings and dots resembling leopard spots, revealing an iridescent blue-black abdomen marked with orange when its wings part, making it one of the most eye-catching tiger moths in North America.

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Pine Processionary Moth

Pine Processionary Moth

An unremarkable grey-brown moth known almost entirely through its larvae, which build large silken nests in pine trees and travel to feed in long, head-to-tail processions covered in fine defensive hairs.

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Cabbage Looper Moth

Cabbage Looper Moth

A drab mottled-brown moth best known for its pale green, looping caterpillar that arches its back like an inchworm while feeding on garden vegetables.

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Banded Woolly Bear Moth

Banded Woolly Bear Moth

Best known as the black-and-rust-banded fuzzy caterpillar that famously curls into a ball when disturbed, this species matures into a plain golden-orange to tan tiger moth.

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Corn Earworm Moth

Corn Earworm Moth

A tan to olive-colored moth whose caterpillar, the corn earworm, is one of the most economically significant crop pests in North America, feeding inside corn ears, tomatoes, and cotton bolls.

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Eastern Black Swallowtail Caterpillar

Eastern Black Swallowtail Caterpillar

A striking green-and-black banded caterpillar dotted with yellow spots that flashes a bright orange forked horn when disturbed.

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Spiny Oak-slug Caterpillar

Spiny Oak-slug Caterpillar

A tiny, flattened slug-shaped caterpillar in shades of green, orange, or purple, bristling with clusters of branched spines that can deliver a sting if handled.

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Codling Moth Larva

Codling Moth Larva

The classic 'worm in the apple,' this pinkish-white caterpillar tunnels straight to the core of apples and pears, leaving a telltale frass-plugged entry hole behind.

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Privet Hawk-Moth

Privet Hawk-Moth

The largest resident hawk-moth in much of northern Europe, with streaked brown forewings and a striking abdomen banded in pink and black stripes.

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Poplar Hawk-Moth

Poplar Hawk-Moth

A large, grayish-brown hawk-moth with an unusual resting posture in which the hindwings project forward past the forewings, revealing a hidden rust-red patch when disturbed.

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Fall Webworm Moth

Fall Webworm Moth

A plain white (sometimes lightly speckled) moth whose caterpillars are far more familiar than the adult, spinning large communal silk webs over the ends of tree branches in late summer and early autumn.

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Elephant Hawk-Moth

Elephant Hawk-Moth

A strikingly colored olive-green and bright pink hawk moth named for its caterpillar's trunk-like tapered front end and large false eyespots.

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