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.

Common Blue
A small, sun-loving butterfly whose males flash brilliant violet-blue wings while females wear warm brown with a scattering of orange spots.
butterfly
Cabbage White Butterfly
A small, plain white butterfly with one or two black spots on each forewing and dark wingtips, one of the most common and widespread garden butterflies in the world.
butterflyCaddisfly Larva
A soft-bodied aquatic larva famous for building a portable protective case from sand, gravel, or plant debris bound together with silk.
aquatic-insect
Crazy Ant
A fast-moving, long-legged ant instantly recognizable by its erratic, non-stop scurrying in every direction rather than the orderly trails followed by most other ants.
antTrap-Jaw Ant
A large, fast-moving ant with elongated, straight mandibles that snap shut faster than almost any other animal movement, used to strike prey or fling the ant itself out of danger.
ant
African Mantis
A large, sturdy green or brown mantis frequently found perched on garden shrubs, patiently scanning for insect prey with its sharply angled triangular head.
mantis-stickMaggot
A pale, legless, tapering grub that wriggles through rotting food and organic waste, the larval stage of a fly.
caterpillar-larva
Banded Garden Spider
A large orb weaver with a silvery, banded abdomen striped in yellow and black, spinning a distinctive zigzag stabilimentum through the center of its web.
spiderAcrobat Ant
A small ant named for its habit of raising its distinctive heart-shaped abdomen up over its body like an acrobat when disturbed or alarmed.
ant
Gulf Fritillary Caterpillar
A vivid burnt-orange caterpillar bristling with rows of branched black spines that specializes almost exclusively on passionflower vines.
caterpillar-larva
Striped Bark Scorpion
A slender, tan scorpion marked with two bold dark stripes down its back, often found tucked under bark, rocks, or debris across the central United States.
arachnid
Spotted Lanternfly
A large, strikingly patterned planthopper with gray spotted forewings that flash to reveal crimson hindwings when it leaps or takes flight.
true-bug
Soldier Beetle
A slender, soft-bodied beetle in orange and black or yellow and brown, often seen clustered on late-summer flowers where it feeds on pollen, nectar, and small insects.
beetle
Moth
A broad group of scale-winged insects related to butterflies, typically nocturnal, with stout, often furry bodies and feathery or thread-like antennae.
moth
Fruit Fly (Vinegar Fly)
A tiny tan fly with bright red eyes that seems to appear from nowhere the moment a piece of fruit begins to overripen or a splash of wine is left uncovered.
fly
Jewel Beetle
A sleek, bullet-shaped beetle wrapped in brilliant iridescent metallic colors — green, copper, blue, or gold — that seem to shift with the angle of light.
beetle
Convergent Ladybird Beetle
A common orange-red ladybird with black spots and two distinctive converging white lines on its thorax, widely valued as a natural aphid predator.
beetle
Caddisfly
A moth-like insect whose larvae are famous for constructing portable protective cases out of silk and whatever sand, twigs, or debris they can find.
aquatic-insectBlack Swallowtail Caterpillar
A striking green caterpillar banded with black and dotted with yellow spots, famous for the bright orange, forked osmeterium it flicks out when disturbed.
caterpillar-larvaSugar Ant
A common name for several large, sugar-loving ants, most famously the black-and-orange banded sugar ant of Australia, known for its persistent nighttime foraging around kitchens and picnics.
ant
American Copper
A small, bright orange-and-black butterfly with fiery copper-colored forewings and dusky gray hindwings edged in orange, commonly seen darting low over weedy fields and vacant lots.
butterfly
Dragonfly Nymph
A stocky, camouflaged underwater predator that spends months or years stalking prey along the pond bottom before transforming into an aerial dragonfly.
aquatic-insect
Barn Spider
A brownish, mottled orb weaver famous as the inspiration for Charlotte's Web, commonly found spinning large nightly webs on barns, porches, and other structures.
spiderSun Spider
A fast-running, fiercely built desert arachnid with oversized jaws, often mistaken for a giant spider despite belonging to an entirely different arachnid order.
arachnid