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.
Cochineal
A tiny, sedentary scale insect that lives clustered on prickly pear cacti beneath a protective coat of white, waxy fluff, historically prized for the deep red pigment it produces.
true-bug
Carpet Beetle
A tiny, rounded beetle with a mottled scale pattern of white, brown, and yellow, whose bristly larvae are known for feeding on wool, fur, and other dried animal fibers indoors.
beetle
Painted Lady Butterfly
A medium-sized orange-and-black butterfly with a mosaic of white-spotted black wingtips, famous as the most widely distributed butterfly on Earth and a long-distance migrant.
butterfly
Asian Tiger Mosquito
A small, dark mosquito boldly marked with silvery-white stripes, including one distinctive stripe running straight down the center of its back, that bites readily in broad daylight.
fly
Silvery Checkerspot
An orange-brown checkered butterfly named for the row of small silvery-white crescent spots along the underside hindwing margin, commonly seen nectaring at composite flowers in open habitats.
butterfly
Peppered Moth
A medium-sized moth with finely speckled black-and-white wings that camouflage it against lichen-covered bark, world-famous as a textbook example of evolution in action during the industrial era.
moth
Tobacco Hornworm
A large, chunky green caterpillar with diagonal white stripes and a curved red-orange horn at its tail end, often found stripping tomato and tobacco plants.
caterpillar-larva
Comma Butterfly
An orange-brown butterfly with distinctively ragged, scalloped wing edges and a small white comma-shaped mark on the underside of the hindwing, resembling a dead leaf when at rest.
butterflyKatydid
A leaf-mimicking insect with broad, veined green wings shaped remarkably like foliage, best known for the loud, rhythmic 'katy-did, katy-didn't' chorus males produce on warm summer nights.
grasshopper-cricket
Painted Lady
One of the most widely distributed butterflies on Earth, recognized by its orange-and-black mosaic wings with white-spotted black tips and its habit of long-distance migration across continents.
butterfly
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.
butterflyBraconid Wasp
A tiny, often overlooked parasitoid wasp best known for laying eggs inside caterpillars and other insect hosts, sometimes leaving telltale clusters of small white cocoons on a host's back.
wasp
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.
beetle
Baltimore Checkerspot
A striking black butterfly checkered with rows of orange and cream-white spots, closely associated with wet meadows and its turtlehead host plant, and recognized as a state insect symbol in parts of its range.
butterfly
Yellow Fever Mosquito
A dark mosquito marked with a lyre-shaped pattern of white scales on its thorax, closely tied to human dwellings and the water-filled containers people leave standing around them.
flyMonarch Caterpillar
A boldly banded caterpillar in white, yellow, and black stripes, unmistakable as it munches its way through milkweed leaves before transforming into North America's most famous migratory butterfly.
caterpillar-larva
Monarch Butterfly
A large butterfly with bold orange wings crossed by black veins and a black, white-spotted border, famous for its multi-generational migration between North America and central Mexico.
butterfly
American Lady
A boldly patterned orange-and-black brushfoot butterfly best identified by two large eyespots on its underside hindwing and a distinctive small white spot within the orange field of its forewing.
butterfly
Velvet Ant
A densely fuzzy, brightly colored insect that looks like an oversized ant but is actually a wingless female wasp, instantly recognizable by its thick coat of red, orange, black, or white hair.
wasp
Salt Marsh Moth
A fluffy white tiger moth with black-speckled forewings and an orange-and-black abdomen, best known through its fast-moving, densely bristled caterpillar that wanders widely in late summer.
moth
Vaporer Moth
A tussock moth with dramatic sexual differences: the male is a small rusty-brown day-flying moth with a white wing spot, while the female is a flightless, wingless gray sac-like insect that never leaves her cocoon.
moth
Eyed Click Beetle
A large, mottled black-and-white beetle marked with two prominent false eyespots on its thorax, well known for its ability to snap its body into the air with an audible click when flipped onto its back.
beetle
Banded Hairstreak
A gray-brown, tailed hairstreak marked by a postmedian band of white-edged dark spots on the hindwing underside and a small orange-capped blue spot near the tail, closely tied to oak and hickory woodlands.
butterfly
Milkweed Tussock Caterpillar
Rows of dense orange, black, and white hair tufts run down the back of this milkweed specialist, whose young larvae feed in tight groups that skeletonize milkweed leaves before dispersing to feed alone.
caterpillar-larva