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.
Aphid
A tiny, soft-bodied, pear-shaped insect that clusters in dense colonies on plant stems and leaf undersides, feeding on sap through needle-like mouthparts and often coated in sweet honeydew.
true-bugMayfly Nymph
A short-lived aquatic grazer with feathery gills along its abdomen, living for months underwater before a brief, spectacular mass emergence as a winged adult.
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Aphid Midge
A delicate, long-legged midge whose orange larvae are voracious aphid hunters. The aphid midge is a prized natural enemy of aphids in gardens and greenhouses.
flyStonefly Nymph
A flattened, armored aquatic nymph that clings tightly to rocks in swift, cold streams, serving as one of the most reliable signs of pristine water quality.
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Common Wood-Nymph
A large brown grassland butterfly with a bold yellow patch and one or two prominent black eyespots on the forewing, known for its bouncing, low-to-the-ground flight.
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Dragonfly Nymph
A stocky, camouflaged underwater predator that spends months or years stalking prey along the pond bottom before transforming into an aerial dragonfly.
aquatic-insectDamselfly Nymph
A slender aquatic predator with three feathery tail gills, patiently stalking small prey among pond plants before emerging as a delicate flying damselfly.
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Woolly Aphid
A tiny, soft-bodied aphid that hides beneath a dense coat of white, cottony wax filaments, often appearing as fuzzy white patches clustered on bark or twigs rather than as recognizable insects.
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Rosy Apple Aphid
A small, dusty pink to purplish-gray aphid that clusters on apple foliage in spring, causing distinctive curled, reddened leaves that make its presence easy to spot even before the insects themselves are seen.
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Green Peach Aphid
A small, pale yellow-green aphid with an exceptionally broad host range, recognized as one of the most widespread and adaptable aphid species found on garden vegetables, ornamentals, and stone fruit trees.
true-bugAnt-mimicking Mantis
As a tiny nymph, this mantis moves in quick, jerky bursts to imitate a scurrying ant, a clever disguise it gradually sheds as it grows into a typical-looking adult mantis.
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Orange Tip
A dainty white butterfly whose males flash vivid orange wingtip patches, while both sexes show a beautifully marbled green-and-white pattern on the underwings.
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Orchid Mantis
A dazzling pink-and-white mantis whose petal-shaped leg lobes let it pass as a flower, luring pollinating insects close enough to ambush.
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Blue Orchard Bee
A small, metallic blue-black solitary bee widely valued as an efficient early-spring pollinator of fruit trees, nesting in narrow tunnels and hollow stems rather than building hives.
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Cross Orbweaver
Named for the pale cross of dots marking its rounded abdomen, the cross orbweaver spins one of the most classic wheel-shaped webs, rebuilding it fresh nearly every night to keep its silk sticky and effective.
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Spiny Orb Weaver
A small, hard-shelled orb weaver shaped like a tiny crab, with six sharp spines projecting from a brightly colored abdomen suspended in a neat wheel-shaped web.
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Sleepy Orange
A small, deep orange sulphur butterfly with dark wing borders and a low, wandering flight, named for a faint dark mark that suggests a half-closed, sleepy eye.
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Orb Weaver Spider
A stout-bodied spider best known for spinning the classic, near-perfect circular "orb" web strung between plants, eaves, or fences, often rebuilt fresh each night.
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Marbled Orbweaver
A round-bodied orb weaver with a swollen, marbled orange-and-purple abdomen that builds large, symmetrical webs in damp woodland edges.
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Falcate Orangetip
An early-spring white butterfly whose males flash bright orange wingtips, while both sexes show a distinctive hooked (falcate) forewing shape and marbled green underside pattern.
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Orange Sulphur
A vivid orange-and-yellow butterfly with sharp black wing borders, one of the most common butterflies over open fields and alfalfa crops throughout North America.
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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.
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Golden Silk Orb Weaver
Suspended in a massive, glinting web strung between trees along a forest trail, the golden silk orb weaver is one of the largest and most striking web-building spiders in the Americas, spinning silk with a distinctive yellow-gold sheen.
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Long-jawed Orb Weaver
A slender, stick-like spider with oversized jaws that stretches its legs flat along a stem or spins a loose orb web low over water.
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