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.
Webbing Clothes Moth
A small, plain golden-buff moth that avoids light and flutters weakly from dark closets, leaving silken webbing where its larvae have grazed on wool and fur.
moth
Water Beetle
A smooth, dark, oval-bodied beetle adapted for swimming, commonly found paddling through ponds and marshes and periodically surfacing to renew a carried air supply.
aquatic-insect
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
Flesh Fly
A bristly gray fly marked with three dark thoracic stripes and a checkerboard-patterned abdomen, often spotted hovering near carrion or garbage.
fly
Bordered Plant Bug
A dark, oval-bodied true bug with a distinct pale margin around its wing edges, often mistaken for a large ant or beetle when its nymphs cluster together in tight groups.
true-bug
Ghost Ant
A minuscule ant with a dark head and pale, nearly translucent legs and abdomen that seem to vanish against light-colored surfaces, giving the species its ghostly common name.
ant
Spring Azure
One of the earliest-flying small blue butterflies of spring, with soft pale-blue upperwings, a whitish gray underside dotted with faint dark markings, and no tails on the hindwing.
butterfly
Twenty-plume Moth
A tiny, unusual moth whose wings are each divided into numerous slender, feather-like plumes rather than solid membranes, giving it a delicate, fringed appearance unlike almost any other moth.
moth
Scarab Beetle
A broad, often glossy beetle family recognized by its distinctive fan-like clubbed antennae, ranging from tiny dung-rollers to massive horned giants, found on every continent except Antarctica.
beetle
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.
dragonflyRecluse Spider
A pale, unassuming spider recognized by its dark violin-shaped marking and unusual six-eyed arrangement, spending most of its time hidden in quiet, undisturbed corners.
spider
Firefly Beetle
A soft-bodied, dark beetle famous for producing rhythmic flashes of light from its abdomen at dusk, using bioluminescence to attract mates on warm summer evenings.
beetle
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
Common Earwig
A flattened, reddish-brown insect instantly recognizable by the pair of pincer-like forceps at the tip of its abdomen, which it uses for defense and to help fold its wings.
otherDobsonfly
A massive, primitive-looking insect whose males brandish absurdly long, curved mandibles used for wrestling rivals rather than for feeding.
aquatic-insectPhantom Midge Larva
Almost invisible in open water, the phantom midge larva is a slender, transparent predator that drifts through the water column, using a pair of internal gas-filled sacs to hover at precise depths while hunting tiny prey.
aquatic-insectSnakefly
A slender predator named for its habit of rearing up its long, mobile neck like a tiny cobra when hunting or threatened.
other
Sand Fly
A tiny, densely hairy fly that holds its wings erect in a distinctive V-shape and travels in short, silent hops rather than sustained flight.
flyNo-See-Um
A speck-sized fly so tiny it seems to vanish from sight, yet capable of swarming exposed skin near beaches and marshes at dawn and dusk.
fly
Yellow Fever Mosquito
A dark mosquito marked with a lyre-shaped pattern of white scales on its thorax, closely tied to human dwellings and the water-filled containers people leave standing around them.
fly
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
Ant
A small eusocial insect that lives in highly organized colonies, instantly recognizable by its narrow pinched waist, elbowed antennae, and single-file foraging trails.
ant
Banded Hairstreak
A gray-brown, tailed hairstreak marked by a postmedian band of white-edged dark spots on the hindwing underside and a small orange-capped blue spot near the tail, closely tied to oak and hickory woodlands.
butterfly
Old Lady Moth
A large, dusky brown noctuid moth with an intricate, wood-grain-like pattern of dark streaks and pale flecks across broad wings, often found resting motionless in sheds and against tree bark by day.
moth