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.

Assassin Bug
A slender, long-legged predatory true bug with a curved, needle-like beak used to ambush and pierce other insects, often patterned in bold orange, black, or red warning colors.
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Harlequin Bug
A shield-shaped stink bug painted in bold black-and-orange (or red-and-yellow) blotches, making it one of the most colorful and easily recognized true bugs on cabbage and other cole crops.
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Leaf-Footed Bug
A large, elongated brown true bug named for the flattened, leaf-shaped expansions on its hind legs, often found feeding on fruits, seeds, and vegetables in gardens and orchards.
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American Cockroach
The largest common house-infesting cockroach, a reddish-brown, glossy insect with long antennae and a pale yellowish band edging the shield behind its head, capable of both fast running and short bursts of flight.
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Minute Pirate Bug
A tiny, black-and-white patterned true bug barely visible without close inspection, the minute pirate bug is a voracious predator of thrips, mites, and insect eggs on flowers and foliage.
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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.
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Red-Shouldered Bug
A dark, flattened true bug with a bright red-orange collar across its shoulders, often seen clustering beneath goldenrain trees and other soapberry-family hosts.
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Two-Spotted Stink Bug
A boldly patterned black-and-orange predatory stink bug named for the pair of dark spots on its back, best known for hunting Colorado potato beetle larvae in gardens and fields.
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Boxelder Bug (Eastern)
A flat, black true bug boldly trimmed in red-orange lines, famous for massing by the hundreds on sun-warmed walls and tree trunks each autumn.
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Meadow Spittlebug
A small, mottled hopping true bug whose immature nymphs are far more often noticed than the adults, hidden inside frothy blobs of white foam known as cuckoo spit on plant stems.
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Water Boatman
A small, streamlined aquatic true bug with oar-like hind legs used for swimming, commonly seen gliding just beneath the surface of ponds and calm freshwater.
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Spittlebug
A small hopping true bug best known in its nymph stage, which surrounds itself in a frothy mass of white foam on plant stems, commonly called cuckoo spit.
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A small, oddly shaped sap-feeding bug best known for an enlarged, often bizarre pronotum extending backward over its body, sometimes shaped like a thorn, leaf, or spike.
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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.
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Earwig
A slender, reddish-brown insect easily identified by the pair of curved, forceps-like pincers at the tip of its abdomen, often found hiding under mulch, bark, or garden debris by day.
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Toad Bug
A squat, warty-looking true bug with bulging eyes and a mottled brown pattern, so named for its uncanny resemblance to a tiny toad as it hops along muddy shorelines.
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Boll Weevil
A small, grayish-brown snout beetle with a long, curved rostrum, historically famous for its close feeding association with cotton flower buds and bolls.
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