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.

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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Chinch Bug
A tiny black-and-white true bug that feeds on grasses, often overlooked individually but capable of forming dense colonies in sunny, dry patches of lawn.
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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.
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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.
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Lantern Bug (Peanut-head Bug)
A bizarre rainforest planthopper whose head is drawn out into a huge, hollow, peanut-shaped snout, and whose hindwings flash a pair of large eyespots resembling the face of a small reptile.
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Plant Bug (Tarnished Plant Bug)
A small, oval, mottled brownish true bug with a distinctive yellow triangular marking behind the head, the tarnished plant bug is a fast-moving plant feeder common across gardens, fields, and weedy edges.
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Walking Stick Insect
A master of disguise that has evolved to look almost exactly like a twig, bark or leaf, remaining motionless for hours to avoid the notice of hungry birds and lizards.
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Water Stick Insect
An extraordinarily twig-like aquatic predator that lies motionless among pond weed, grasping passing prey with spiny raptorial forelegs while breathing through a long tail-like snorkel.
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Javanese Leaf Insect
A broad, veined, leaf-green body makes this insect nearly indistinguishable from the foliage it feeds on, a masterclass in disguise native to the forests of Southeast Asia.
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Goliath Stick Insect
One of the largest stick insects in the world, this vivid green giant unfurls startling crimson underwings when startled, briefly abandoning its disguise as foliage.
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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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Giant Water Bug
A massive, flattened oval true bug with powerful grasping front legs, the giant water bug is North America's largest aquatic insect and an ambush predator lurking just below the surface of still water.
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Indian Stick Insect
A slender, twig-mimicking insect so unremarkable in stillness that it disappears among the stems it feeds on, one of the most widely raised stick insects in the world.
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Creeping Water Bug
Broad, oval, and flattened like a tiny shield, the creeping water bug crawls methodically through submerged vegetation rather than swimming freely, using its stout, raptorial front legs to seize prey.
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Big-Eyed Bug
A small, broad-headed true bug named for its noticeably large, bulging compound eyes, the big-eyed bug is a beneficial predator that patrols low vegetation and soil surfaces for small pest insects.
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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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Elm Seed Bug
A slim, brownish-orange seed bug that develops on elm seeds and becomes a familiar autumn nuisance as it seeks shelter on sun-warmed walls and window frames.
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Broad-Headed Bug
A slender, dark true bug with a notably wide head, whose nymphs are remarkable ant mimics that scurry among leaf litter before maturing into fliers that resemble small leaf-footed bugs.
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Small Milkweed Bug
A red-and-black seed bug with a distinctive X-shaped pattern on its back, commonly found feeding on milkweed seeds and sap alongside monarch caterpillars.
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Predatory Stink Bug
Unlike its plant-feeding relatives, the predatory stink bug is a hunter that spears caterpillars and beetle larvae with a stout beak. The spined soldier bug is a familiar shield-shaped garden ally.
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Water Boatman Bug
A boat-shaped little swimmer that rows through pond water with oar-like hind legs, grazing on algae rather than hunting other animals.
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Fireflies (Lightning Bug)
A soft-bodied beetle that turns summer evenings magical by flashing rhythmic patterns of cold light from its abdomen to attract mates across meadows and forest edges.
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Green Shield Bug
A broad, shield-shaped true bug in solid bright green with a bronzy tinge in autumn, the green shield bug is one of the most commonly encountered stink bugs in European gardens and hedgerows.
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Green Stink Bug
A broad, shield-shaped bug in solid bright green with a shell-like appearance, easily disturbed off host plants and known for releasing a pungent odor when handled.
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