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.

Tent Caterpillar

Tent Caterpillar

A social, blue-striped caterpillar that builds a conspicuous silken tent in the fork of a tree branch, sheltering large colonies of siblings that emerge together to feed on leaves.

caterpillar-larva
Rat-Tailed Maggot

Rat-Tailed Maggot

Named for its long, thin, telescoping breathing tube, the rat-tailed maggot is the aquatic larva of the drone fly, thriving in stagnant, low-oxygen water where few other insects can survive.

aquatic-insect
Huntsman Spider

Huntsman Spider

With legs splayed crab-like to either side of a flattened body, the huntsman spider is built for speed, capable of scuttling sideways across walls and tree trunks in pursuit of prey.

spider
Eastern Dobsonfly

Eastern Dobsonfly

The classic dobsonfly of eastern North America, famous for the male's outsized, tusk-like jaws and for its aquatic larva, the hellgrammite, a favorite live-bait fishing lure.

aquatic-insect
Brown Lacewing

Brown Lacewing

Smaller and less conspicuous than its green relatives, the Brown Lacewing is a subtle but effective predator of aphids and other tiny insects in gardens, forests, and orchards.

other
Painted Skimmer

Painted Skimmer

The Painted Skimmer's warm amber-and-brown mottled wings look like they were dabbed with a paintbrush, making this medium-sized skimmer one of the more artistically marked dragonflies in the East.

dragonfly
Flame Skimmer

Flame Skimmer

A blazing orange-red dragonfly of western waterways, the Flame Skimmer perches boldly on sunlit rocks and twigs, its amber-tinted wings glowing like embers in flight.

dragonfly
Widow Skimmer

Widow Skimmer

A medium-sized dragonfly named for the broad, dark mourning-veil-like patches at the base of its wings, seen perched on shoreline vegetation across much of North America.

dragonfly
Cactus Fly

Cactus Fly

A slender, long-legged desert fly that specializes in breeding within the soft, fermenting tissue of decaying cactus, particularly saguaro and other columnar cacti.

fly
Common True Katydid

Common True Katydid

A living leaf that spends its life high in the treetops, the common true katydid is far more often heard than seen, producing the loud, rasping "katy-did, katy-didn't" chorus that fills eastern summer nights.

grasshopper-cricket
Cabbage White Caterpillar

Cabbage White Caterpillar

A velvety, bright green caterpillar with a faint yellow stripe down its back, the larval stage of the common white butterfly seen fluttering around vegetable gardens.

caterpillar-larva
Leaf Miner

Leaf Miner

Rather than chewing from the outside, a leaf miner larva tunnels between the upper and lower surfaces of a leaf, leaving behind pale, winding trails or blotches that trace its path as it feeds.

fly
Ground Spider

Ground Spider

A dark, fast-moving nocturnal hunter that patrols the ground surface at night, easily recognized by its distinctive pair of forward-projecting silk spinnerets.

spider
Woodlouse Spider

Woodlouse Spider

A reddish-brown spider with oversized forward-pointing jaws specialized for piercing the armored shells of woodlice, often found lurking under damp stones and mulch.

spider
Deathstalker Scorpion

Deathstalker Scorpion

A slender, pale yellow scorpion of Middle Eastern and North African deserts, famed for its striking coloration and status as one of the most studied scorpions in scientific research.

arachnid
Giant Centipede

Giant Centipede

A long, fast-moving, many-legged predator with a hardened segmented body and a pair of venom-injecting claws behind the head that it uses to overpower prey far larger than itself.

myriapod
Rhinoceros Beetle

Rhinoceros Beetle

A massive, heavily armored beetle whose males sport a single large, curved horn projecting forward from the head, used to shove and flip rival males in contests of strength.

beetle
Meadow Spittlebug

Meadow Spittlebug

A small, mottled hopping true bug whose immature nymphs are far more often noticed than the adults, hidden inside frothy blobs of white foam known as cuckoo spit on plant stems.

true-bug
Leaf-Footed Bug

Leaf-Footed Bug

A large, elongated brown true bug named for the flattened, leaf-shaped expansions on its hind legs, often found feeding on fruits, seeds, and vegetables in gardens and orchards.

true-bug
Lappet Moth

Lappet Moth

A large, richly textured moth with deeply scalloped, russet-brown wings that fold into an uncanny dead-leaf silhouette, one of the most convincing leaf mimics among European moths.

moth
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.

moth
Ladybug

Ladybug

A small, round, brightly colored beetle with a domed, shiny shell typically red or orange with black spots, one of the most recognizable and beloved beetles found in gardens worldwide.

beetle
Whitefringed Beetle

Whitefringed Beetle

A stout gray-brown weevil named for the pale, fringe-like stripe along the outer edge of its wing covers, whose root-feeding larvae are a recognized issue in pastures and row crops.

beetle
Antheraea Silkmoth

Antheraea Silkmoth

A large, robust silkmoth in the genus Antheraea with broad reddish-brown to tan wings, each marked with a prominent transparent, eye-like spot, representing a group of giant moths long valued for producing wild silk.

moth