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.

Sacred Scarab
A stout, matte-black dung beetle famous for rolling balls of dung across the ground with its hind legs, and revered in Ancient Egypt as a symbol of the sun and renewal.
beetle
Mealworm
A tan, segmented larva with a shiny hard exoskeleton that tunnels through stored grain and flour before transforming into a darkling beetle.
caterpillar-larva
Black Vine Weevil
A flightless, all-black snout beetle notorious for notching the edges of leaves at night while its underground larvae feed on plant roots and crowns.
beetle
Jewel Bug
A living gemstone of the insect world, the jewel bug shimmers in dazzling metallic greens, blues, reds, and golds. Its enlarged shield-like back covers the entire body, making it look like a polished piece of enamelware.
true-bug
Grub Worm
A plump, C-shaped, creamy-white larva with a distinct brown head, living underground where it feeds on grass and plant roots before eventually maturing into a scarab beetle.
beetle
Oriental Cockroach
A dark, matte blackish-brown cockroach with short wings that do not cover the abdomen, especially in females, and a preference for cooler, damper hiding spots than most other common cockroaches.
other
White Grub
A pale, C-shaped larva with a brown head capsule and six stubby legs, spending its entire early life hidden underground feeding on roots before emerging as a stout May or June beetle.
beetle
Fireflies
A soft-bodied beetle famous for producing rhythmic, glowing flashes of light from its abdomen at dusk, used to signal and attract mates across meadows and gardens on warm summer evenings.
beetle
Cockchafer
A large, reddish-brown scarab beetle with distinctive fan-shaped antennae, famous for its noisy, clumsy evening flights around trees in late spring, giving rise to its alternate name, the May bug.
beetle
Small Emperor Moth
A striking day-flying moth with large eyespots on all four wings, gray-brown coloring in males and paler gray in the larger females, native to heathlands and open countryside across Europe.
moth
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
Pillbug
A gray, armor-plated land crustacean that curls into a tight ball at the slightest touch, earning it the playful nickname "roly-poly."
other
Biting Midge
A minuscule, gray-winged fly that gathers in dense swarms near wetlands and can slip through window screens unnoticed.
fly
Indianmeal Moth
A small moth with two-toned, coppery-and-gray wings whose caterpillars spin silken webbing through stored grain, cereal, and dried fruit.
moth
Firebrat
A fast, wingless, mottled gray-brown insect with long antennae and tail bristles that thrives in the warm, humid corners near ovens, boilers, and pipes.
other
Pill Bug
A gray, segmented, armor-plated crustacean that curls into a tight ball when disturbed, commonly found under rocks, logs, and damp garden debris.
other
Onion Fly
A slender gray fly closely related to houseflies whose white legless larvae bore into onion bulbs, feeding in clusters within a single rotting bulb.
fly
Squash Bug
A flat-backed, brownish-gray true bug commonly found clustered on the leaves and stems of squash and pumpkin plants, where it feeds by piercing plant tissue.
true-bug
Cutworm
A plump, dull gray-brown caterpillar that hides in soil by day and emerges at night to sever young seedlings at the base, curling tightly into a C-shape when disturbed.
caterpillar-larva
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
Checkered White
A white butterfly patterned with irregular gray-black checkered spots, commonly fluttering low over open, sunny, weedy fields across much of North America.
butterfly
Stable Fly
A gray fly that looks almost identical to the common house fly, but carries a rigid, forward-pointing proboscis built for piercing skin rather than sponging up liquids.
fly
Rough Stink Bug
A gray-brown, textured stink bug with an irregular, jagged-edged outline that blends seamlessly against tree bark, making it one of the best-camouflaged members of its family.
true-bug
Common House Fly
A dull gray fly with four dark stripes down its back, the house fly is one of the most familiar insects on Earth, following people and their food waste to every continent.
fly