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.

Lubber Grasshopper
Heavy-bodied and slow-moving, lubber grasshoppers make up for their poor flying ability with large size, bold coloring, and a lumbering, ground-bound lifestyle.
grasshopper-cricket
Northern Pearly-eye
A shade-loving brown woodland butterfly with rows of dark, pale-ringed eyespots, more often seen resting on tree trunks in forest gaps than flying in open sun.
butterfly
Firefly
A soft-bodied, dusk-flying beetle famous for the bioluminescent flashes it produces from its abdomen to attract mates on warm summer evenings.
beetle
Emperor Dragonfly
One of Europe's largest and most powerful dragonflies, a fast, high-flying hunter with a bright sky-blue abdomen in males and a commanding, tireless patrol over open water.
dragonfly
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
Zebra Longwing
A slow-flying, long-winged black butterfly striped boldly with yellow, unusual among butterflies for feeding on pollen as an adult, which extends its lifespan to several months.
butterfly
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.
butterfly
Flower Chafer Beetle
Often clad in brilliant metallic greens, golds, and bronzes, flower chafers are day-flying scarab beetles that feed on flowers. Many buzz loudly in flight and keep their wing covers closed as they take off.
beetle
Red Admiral
A fast-flying, strikingly patterned butterfly with velvety black wings crossed by a bold orange-red band and white-spotted tips, often seen basking on tree trunks or sipping from fallen fruit.
butterfly
Damselfly 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
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.
butterfly
Digger Bee
A robust, fast-flying, densely furry solitary bee that excavates tunnels in bare or sloped soil, often confused with bumble bees due to its bulky, hairy build and loud buzzing flight.
bee
Autumn Meadowhawk
One of the last dragonflies still flying as autumn cools, this small pale-legged meadowhawk can be found sunning on trails and pond banks well into November in many areas.
dragonfly
American Grasshopper
A large, strong-flying grasshopper related to the locusts of the Old World, the American grasshopper can occasionally form dense, damaging aggregations across the southern United States.
grasshopper-cricket
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
Glowworm Beetle
A beetle whose females remain larva-like and glowing for their entire lives, producing rows of soft greenish light along their segmented, worm-like bodies, while males develop into small, feathery-antennaed flying beetles.
beetle
Wasp
A slender-waisted, smooth-bodied flying insect typically banded in black and yellow, recognizable by its narrow 'wasp waist' and folded wings, and often social, building paper nests in colonies.
wasp
Spider Wasp
A quick, nervous-flying solitary wasp with long spiny legs and constantly flicking wings, recognized for its habit of running across open ground in short bursts while hunting spiders to paralyze and store for its young.
wasp
Polyphemus Moth Caterpillar
A plump, apple-green giant silk moth larva with rows of silvery spots that swells to the size of a large finger before spinning a papery brown cocoon.
caterpillar-larva
West Virginia White
A delicate, pure-white spring butterfly of eastern hardwood forests with faint gray veining on the underside, flying only for a few weeks each year before its short-lived toothwort host plants fade.
butterfly
Case-bearing Clothes Moth
A tiny, drab tan moth whose larva constructs and carries a small portable silk case as it feeds on wool, fur, and other keratin-based fibers, making it a recognized fabric pest in homes.
moth