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.

Little Black Ant

Little Black Ant

A tiny, shiny jet-black ant that forms long, wandering foraging trails across lawns, patios, and kitchen counters in search of sweets and protein.

ant
Dogface Butterfly

Dogface Butterfly

A striking yellow sulphur butterfly whose forewing pattern forms the silhouette of a dog's or poodle's head complete with a dark 'eye' spot, visible in good light.

butterfly
Pharaoh Ant

Pharaoh Ant

A tiny, pale-yellow ant that thrives almost exclusively indoors, forming vast interconnected colonies within the warm voids of heated buildings.

ant
Black Garden Ant

Black Garden Ant

A familiar small, glossy black ant that forms visible foraging trails across patios and garden paths and nests beneath stones, pavers, and lawns.

ant
Chinch Bug

Chinch Bug

A tiny black-and-white true bug that feeds on grasses, often overlooked individually but capable of forming dense colonies in sunny, dry patches of lawn.

true-bug
Rocky Mountain Locust

Rocky Mountain Locust

Once the most destructive insect in North American history, this swarming grasshopper vanished within a few decades of forming the largest insect swarm ever recorded.

grasshopper-cricket
Argentine Ant

Argentine Ant

A small, uniformly light-brown ant that forms enormous, cooperative supercolonies stretching across entire regions rather than defending small individual nests.

ant
Army Ant

Army Ant

A nomadic predator that never builds a permanent nest, instead forming temporary living bivouacs from its own linked bodies and sweeping through the forest floor in massive predatory raids.

ant
Plume Moth

Plume Moth

A slender, long-legged moth that rests with its wings rolled tightly and held out at right angles to its body, forming a distinctive letter-T silhouette.

moth
Giant Swallowtail

Giant Swallowtail

The largest butterfly in North America, a dark brown giant marked with a bold diagonal yellow band and yellow spotting that forms an X-like pattern when the wings are spread.

butterfly
Longhorn Beetle

Longhorn Beetle

A beetle instantly recognizable by antennae often longer than its own body, ranging from small woodland species to large, dramatically patterned tropical and temperate forms.

beetle
Bluet Damselfly

Bluet Damselfly

Small and delicate, bluet damselflies flash brilliant blue and black along the vegetated edges of ponds and lakes, forming mating pairs that fly in tandem while laying eggs directly into plant stems underwater.

dragonfly
Fig Wasp

Fig Wasp

A pinhead-sized wasp that spends nearly its entire life inside a fig, forming one of the most tightly co-evolved partnerships in nature as it pollinates the tree in exchange for a place to lay its eggs.

wasp
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.

moth
Field Ant

Field Ant

A large, common outdoor ant that builds conspicuous mound nests of soil and plant debris in sunny open ground and defends itself by spraying formic acid rather than stinging.

ant
Weaver Ant

Weaver Ant

A tree-dwelling ant that builds its nest by stitching living leaves together with silk produced by its own larvae, forming elaborate arboreal colonies defended fiercely by its workers.

ant
Desert Locust

Desert Locust

A large, powerful grasshopper capable of forming some of the most extensive and historically devastating insect swarms on Earth, transforming from a solitary desert dweller into a densely packed migrating horde under the right conditions.

grasshopper-cricket
Mourning Cloak

Mourning Cloak

A dark, velvety maroon-brown butterfly edged with a ragged cream-yellow border and a row of iridescent blue spots, notable for overwintering as an adult and often being one of the very first butterflies seen flying in early spring.

butterfly
Mourning Cloak Caterpillar

Mourning Cloak Caterpillar

A gregarious, velvety black caterpillar speckled with white dots and a striking row of brick-red spots down its back, often seen feeding in clusters on willow branches.

caterpillar-larva
Mourning Cloak Butterfly

Mourning Cloak Butterfly

A deep maroon-brown butterfly bordered with a cream-yellow band and a row of iridescent blue spots, unusual among butterflies for overwintering as an adult and being one of the first to appear in early spring.

butterfly
Red Wood Ant

Red Wood Ant

A large woodland ant with a reddish-brown thorax and dark abdomen, famous for building towering dome-shaped mounds of pine needles and twigs in forest clearings.

ant
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
Cecropia Moth Caterpillar

Cecropia Moth Caterpillar

North America's largest native caterpillar, a bulky blue-green giant studded with rows of bright red, yellow, and blue knobby tubercles resembling tiny coral formations.

caterpillar-larva
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