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.
Red Velvet Mite
A plump, brilliant red mite covered in a dense coat of short velvety hairs, often seen emerging onto the soil surface in numbers right after a heavy rain. Its vivid color and unusual size for a mite make it one of the more eye-catching arachnids most people will ever encounter.
arachnid
Mining Bee
A furry, solitary ground-nesting bee that emerges in early spring in loose aggregations, often mistaken for a small bumble bee, digging individual burrows marked by small volcano-shaped mounds of soil.
bee
Argentine Ant
A small, uniformly light-brown ant that forms enormous, cooperative supercolonies stretching across entire regions rather than defending small individual nests.
ant
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-insect
Asparagus Beetle
A small, boldly patterned blue-black beetle with cream and orange-red markings that clusters on emerging asparagus spears in spring.
beetleCaterpillar
The soft-bodied, segmented larval stage of butterflies and moths, recognized by its worm-like shape, multiple pairs of stubby legs, and voracious appetite for leaves.
caterpillar-larva
Squash Vine Borer
A day-flying, wasp-mimicking moth whose orange fuzzy hind legs and metallic wings make it easy to mistake for a wasp as it darts around squash vines.
moth
American House Spider
A small, brownish spider with a bulbous, mottled abdomen that spins loose, irregular tangle webs in quiet corners, ceilings, and window frames.
spider
Trichogramma Wasp
Barely larger than a speck of dust, the trichogramma wasp is one of the tiniest insects known. These minute parasitoids lay their eggs inside the eggs of moths and butterflies.
wasp
Deer Tick
A small, dark-legged tick with a reddish-brown, teardrop-shaped body, noticeably smaller than many other common tick species and often found questing in wooded or grassy edge habitats.
arachnidFlea Beetle
A tiny, shiny beetle that springs away like a flea when disturbed, leaving characteristic small round holes peppered across the leaves it feeds on.
beetleHouse Spider
A small, round-bodied brown spider with mottled markings that spins tangled, irregular cobwebs in quiet corners, ceilings, and undisturbed indoor spaces.
spiderOgre-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
Little Wood-Satyr
A small, weak-flying brown butterfly with two prominent yellow-ringed eyespots on each wing, common along shaded woodland edges in late spring.
butterflyWall Spider
A tiny, flattened spider that spins a small disc-shaped web hugging the surface of a wall and darts sideways in a quick, erratic dash when disturbed.
spiderHouse Ant
A small, dark brown to black ant that forages in loose trails along countertops and baseboards and releases a distinctive rotten-coconut smell when crushed.
ant
Deer Fly
A small but aggressive fly with strikingly patterned, dark-banded wings and bright green or gold eyes, often circling the head and shoulders while hunting for a blood meal.
flyMesh Web Weaver
A tiny, easily overlooked spider that spins a loose, bluish tangle of fuzzy silk over twig tips and seed heads to snare small insects.
spiderAlderfly
A small, dusky-winged insect that flutters weakly among streamside alders and shrubs, the diminutive relative of the mighty dobsonfly.
aquatic-insect
Whitefly
A tiny, moth-like white insect that clusters on the undersides of leaves and bursts into a snowy cloud when the plant is disturbed. Despite the name, it is not a true fly but a sap-feeding relative of aphids and scale insects.
true-bug
Skipper Butterfly
A stocky, fast-darting butterfly with a large head, hooked antennae tips, and thick furry body, intermediate in appearance between butterflies and moths, named for its quick, skipping flight.
butterfly
Leafhopper
A small, wedge-shaped insect that darts sideways and springs away in quick hops when disturbed, often brightly striped or patterned and found clinging to the underside of leaves.
true-bug
Blue Dasher Dragonfly
A small, common dragonfly whose mature males combine a powdery blue abdomen with brilliant green eyes, often seen perched horizontally with its tail raised skyward.
dragonflyWhirligig Beetle
A small, glossy black beetle that spins and darts in rapid circles across the surface film of ponds, often gathered in loose groups, using divided eyes to see both above and below the water at once.
aquatic-insect