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.

Spiny Flower Mantis
A small, boldly patterned mantis whose wing markings resemble a pair of eyespots, flashed open in a startling display whenever a predator ventures too close.
mantis-stick
Regal Jumping Spider
One of the largest and most striking North American jumping spiders, with a velvety black body, bold markings, and huge iridescent green or blue-lined eyes.
spider
Red-legged Grasshopper
One of the most abundant and widespread grasshoppers in North America, the red-legged grasshopper is easily spotted by its reddish hind shins flashing amid a brown, mottled body.
grasshopper-cricket
Scorpionfly
A harmless scavenger whose alarming name comes from the male's swollen, upturned abdominal tip, which curls like a scorpion's tail but carries no sting.
other
Snout Beetle
A small beetle instantly recognized by its elongated, downward-curving snout, tipped with chewing mouthparts, used to bore into seeds, nuts, stems, or fruit.
beetle
Rice Weevil
A tiny reddish-brown weevil with a long curved snout and four faint pale spots on its wing covers, commonly found infesting stored rice, wheat, and other grain products.
beetle
Potato Bug
A rounded, boldly striped beetle in cream and black that feeds on potato and other nightshade foliage, easily recognized by the ten black stripes running down its wing covers.
beetlePhorid Fly
A tiny, hump-backed fly best known for scuttling erratically across countertops and floors rather than taking flight, drawn to anything rotting or moist.
fly
Lime Hawk-Moth
A stout, angular-winged hawk-moth in muted greens, browns, or pinks with deeply scalloped wing margins, closely tied to lime (linden) trees for its larval development.
mothLonghorn Bee
A fuzzy, medium-sized solitary bee named for the males' notably long, curved antennae, commonly seen foraging on sunflowers, asters, and other late-summer composite flowers.
bee
Meadow Fritillary
A small, fast-flying orange-and-black fritillary of open grassy fields, easily told from its larger cousins by its lack of silvery spots on the underside of the hindwing.
butterflyOgre-faced Spider
A twig-like nocturnal spider with enormous, light-gathering eyes that weaves a small rectangular net and hurls it over passing prey in a lightning-fast ambush.
spider
Fragile Forktail
One of North America's smallest and most delicate damselflies, the Fragile Forktail is best known for the pale green exclamation-point mark on top of its thorax.
dragonfly
Great Silver Water Beetle
One of the largest beetles in Europe, the great silver water beetle is a glossy jet-black giant that rows through weedy ponds carrying a silvery film of air trapped beneath its body.
beetle
Flea
A tiny, wingless, laterally flattened insect built for moving swiftly through fur, famous for its powerful hind legs that allow it to leap many times its own body length.
other
Horn Fly
A tiny, dark fly that clusters in dense patches on the backs and shoulders of grazing cattle, using piercing mouthparts to take frequent small blood meals.
flyJune Beetle
A stout, reddish-brown scarab beetle that emerges in late spring and early summer, famous for clumsily bumping into porch lights and window screens at night.
beetleFungus Gnat
A small, dark, mosquito-like fly with long legs and delicate smoky wings, often seen weakly fluttering around houseplants or crawling across damp potting soil.
fly
European Stag Beetle
Europe's largest beetle, a glossy dark brown insect in which males carry oversized antler-like mandibles used to wrestle rivals, resembling the antlers of a stag.
beetle
Eastern Hercules Beetle
One of the largest beetles in North America, a massive rhinoceros beetle in which males bear an enormous forked horn used to wrestle rivals off of favored tree sap sites.
beetle
Eastern Subterranean Termite
A pale, soft-bodied social insect that lives in vast underground colonies and builds mud tubes to reach and feed on wood cellulose, including structural timber.
other
Eastern Pondhawk
A bold, ground-perching dragonfly whose bright green females and powdery blue males look almost like different species, and which readily preys on other dragonflies.
dragonflyDamselfly Nymph
A slender aquatic predator with three feathery tail gills, patiently stalking small prey among pond plants before emerging as a delicate flying damselfly.
aquatic-insect
Common Housefly
A dull gray fly with four dark stripes on its thorax and large reddish eyes, one of the most widespread insects on Earth thanks to its close association with human food and waste.
fly