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.
Convergent Ladybird Beetle
A common orange-red ladybird with black spots and two distinctive converging white lines on its thorax, widely valued as a natural aphid predator.
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Eastern Hercules Beetle
One of the largest beetles in North America, a massive rhinoceros beetle in which males bear an enormous forked horn used to wrestle rivals off of favored tree sap sites.
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Confused Flour Beetle
A tiny, flattened, reddish-brown beetle commonly found in stored flour and grain products, distinguished from its near-identical relative the red flour beetle mainly by its antennae shape.
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Colorado Potato Beetle
A rounded, boldly striped yellow-and-black beetle that is one of the most notorious defoliators of potato plants, easily spotted marching across leaves in gardens and fields.
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Elm Leaf Beetle
A yellow-green leaf beetle with dark side stripes that skeletonizes elm foliage and gathers in large numbers to overwinter in buildings.
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American Carrion Beetle
A broad, flattened black beetle with a striking pale yellow shield behind its head, commonly found on and around small animal carcasses where it feeds alongside fly larvae.
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Asian Lady Beetle
A highly variable orange-to-red ladybird beetle, often bearing many black spots or none at all, famous for swarming into homes in large numbers during autumn.
beetleWater Penny Beetle
A flattened, coin-shaped larva that clings almost invisibly to the surface of submerged stream rocks, named for its uncanny resemblance to a small penny.
aquatic-insect
Varied Carpet Beetle
A tiny beetle mottled with white, brown, and yellow scales that, as a fuzzy larva, quietly grazes on natural fibers tucked away in closets and attics.
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Red Flour Beetle
A tiny, flattened, rust-red beetle found in stored flour and grain worldwide, capable of flight and closely resembling the confused flour beetle apart from the shape of its antennal club.
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Spotted Cucumber Beetle
A small, elongated yellow-green beetle marked with twelve black spots across its wing covers, commonly seen on cucurbit and corn plants throughout the growing season.
beetlePredaceous Diving Beetle
A sleek, streamlined beetle built for underwater hunting, carrying its own air supply as it patrols ponds in search of prey.
aquatic-insectPine Sawyer Beetle
A large, long-antennaed longhorn beetle of pine and spruce forests, mottled gray-brown to black, that produces a rasping sound when handled and whose larvae tunnel deep into dead or dying conifer wood.
beetleNet-winged Beetle
A soft-bodied beetle with broad, ridged wing covers patterned in bold orange or red and black bands, whose netlike wing venation and vivid coloring warn potential predators of its unpalatability.
beetleLily Leaf Beetle
A brilliant scarlet-red beetle with a jet-black head, legs, and underside that feeds almost exclusively on true lilies and fritillaries, often stripping leaves down to bare stems.
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Mexican Bean Beetle
A copper-colored, spotted beetle resembling an overgrown ladybird that feeds on bean plant leaves along with its spiny yellow larvae.
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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.
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Great Silver Water Beetle
One of the largest beetles in Europe, the great silver water beetle is a glossy jet-black giant that rows through weedy ponds carrying a silvery film of air trapped beneath its body.
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Ten-lined June Beetle
A large, brown scarab beetle marked with bold white racing stripes down its wing covers, known for its loud buzzing flight and hissing defensive squeak.
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Metallic Wood-boring Beetle
The North American common name for jewel beetles, emphasizing the wood-tunneling habits of their larvae, which leave telltale flattened, D-shaped exit holes in bark of stressed or dying trees.
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Devil's Coach Horse Beetle
A large, matte-black rove beetle that raises its flexible abdomen up and over its back like a scorpion's tail and gapes its jaws when threatened, one of the biggest and most dramatic rove beetles in Europe.
beetleDiving Beetle Larva (Water Tiger)
Nicknamed the water tiger, the larva of a predaceous diving beetle is an elongated, sickle-jawed hunter that stalks the shallows and seizes prey many times its own size.
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Azure Bluet
A sky-blue damselfly of quiet ponds, the Azure Bluet is named for its vivid blue coloration and is often seen resting in loose swarms over floating vegetation.
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Familiar Bluet
One of the most widespread and abundant damselflies in North America, the Familiar Bluet's slender sky-blue and black body is a near-constant sight over ponds and lakes in warm months.
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