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.

Stone Centipede

Stone Centipede

A quick, flattened, reddish-brown centipede that darts for cover the instant its stone or log shelter is lifted, one of the most commonly seen centipedes in temperate gardens.

myriapod
Amazonian Giant Centipede

Amazonian Giant Centipede

The largest centipede on the planet, a formidable dark reddish-brown predator from South American rainforests capable of capturing prey as large as bats and small reptiles.

myriapod
Common Clubtail

Common Clubtail

This river-loving dragonfly gets its name from the noticeably widened, club-shaped tip of its abdomen, which it displays as it rests on sunlit waterside vegetation.

dragonfly
Golden-winged Skimmer

Golden-winged Skimmer

A large skimmer of southeastern wetlands, its wings brushed with a warm golden-amber wash along the leading edge that catches the light as it patrols still, sunlit water.

dragonfly
Roseate Skimmer

Roseate Skimmer

A vivid pink-violet dragonfly of southern wetlands, the mature male's rose-pruinose body makes it one of the most striking skimmers found around ponds and canals.

dragonfly
Green Darner Dragonfly

Green Darner Dragonfly

One of the largest and most widespread dragonflies in North America, its green thorax and target-marked face make it unmistakable as it patrols open water on powerful wings.

dragonfly
Water Boatman

Water Boatman

A small, streamlined aquatic true bug with oar-like hind legs used for swimming, commonly seen gliding just beneath the surface of ponds and calm freshwater.

aquatic-insect
Green Shield Bug

Green Shield Bug

A broad, shield-shaped true bug in solid bright green with a bronzy tinge in autumn, the green shield bug is one of the most commonly encountered stink bugs in European gardens and hedgerows.

true-bug
Dog-Day Cicada

Dog-Day Cicada

A stout, thick-bodied cicada with mottled green and brown camouflage patterning, named for its loud droning calls heard during the hot "dog days" of late summer.

true-bug
Luna Moth

Luna Moth

A large, pale lime-green silk moth with long, elegant tails trailing from its hindwings, considered one of the most striking nocturnal insects in North America.

moth
Eyed Hawk-Moth

Eyed Hawk-Moth

A pinkish-brown hawk-moth that reveals a pair of large, blue-and-black eyespots on its hindwings when threatened, using the sudden flash of "eyes" to startle would-be predators.

moth
Walking Stick Insect

Walking Stick Insect

A master of disguise that has evolved to look almost exactly like a twig, bark or leaf, remaining motionless for hours to avoid the notice of hungry birds and lizards.

mantis-stick
Inchworm

Inchworm

A slender, twig-mimicking caterpillar that travels by looping its body into an arch and releasing a strand of silk to drop and dangle at the slightest disturbance.

caterpillar-larva
Chinese Mantis

Chinese Mantis

One of the largest praying mantises found in North America, an introduced species with a lean brown-and-green body and grasping spined forelegs built for ambushing insect prey.

mantis-stick
Two-striped Grasshopper

Two-striped Grasshopper

Easily spotted by the pair of pale cream stripes running the length of its body, the two-striped grasshopper is one of the largest and most economically important grasshoppers in North America.

grasshopper-cricket
Spur-throated Grasshopper

Spur-throated Grasshopper

One of the most familiar grasshopper groups in North America, named for the small spine on its throat and known for including some of the continent's most abundant rangeland species.

grasshopper-cricket
Harvester Ant

Harvester Ant

A large, industrious desert ant that clears a bare, sunburned disk of ground around its nest entrance while collecting and storing seeds by the thousands.

ant
Dance Fly

Dance Fly

A slender, long-legged predatory fly named for the swarming courtship dances males perform at dusk, often while carrying a captured insect as an offering.

fly
Golden Silk Orb-Weaver Spider

Golden Silk Orb-Weaver Spider

Famous for spinning enormous webs of shimmering golden silk, the golden silk orb-weaver is a large, long-legged spider of warm climates. Females dwarf the tiny males and hang head-down in their sprawling snares.

spider
Water Springtail

Water Springtail

Barely visible to the naked eye, the water springtail skates across the surface film of still water in dense dark clusters, flicking itself into the air with a spring-loaded tail whenever danger approaches.

other
Toe-Biter

Toe-Biter

One of the largest true bugs in the world, the toe-biter is a broad, flattened ambush predator that lies in wait among pond vegetation, seizing prey many times its own size with powerful raptorial front legs.

true-bug
Emerald Spreadwing

Emerald Spreadwing

A robust, metallic green damselfly of northern wetlands, the Emerald Spreadwing rests with its wings held open in the characteristic spreadwing posture and thrives in shallow, seasonal ponds.

dragonfly
Western Black Widow

Western Black Widow

A glossy, jet-black spider with a bold red hourglass mark on the underside of her round abdomen, the western black widow builds a tangled, irregular web in dark, undisturbed corners of the American West.

spider
Crab Spider

Crab Spider

Perched motionless atop a flower petal, often perfectly matched to its color, the crab spider is a patient ambusher that waits for pollinators to land within reach of its outstretched front legs.

spider