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.
Deer Fly
A small but aggressive fly with strikingly patterned, dark-banded wings and bright green or gold eyes, often circling the head and shoulders while hunting for a blood meal.
fly
Dogface Butterfly
A striking yellow sulphur butterfly whose forewing pattern forms the silhouette of a dog's or poodle's head complete with a dark 'eye' spot, visible in good light.
butterfly
Calico Pennant
This small, boldly patterned skimmer flashes red or yellow wing patches and heart-shaped abdominal spots as it flutters low over pond vegetation like a tiny pennant flag.
dragonflyCamel Cricket
A wingless, humpbacked cricket with unusually long legs that gives it a spider-like appearance, often startling people when it turns up in damp basements or crawl spaces.
grasshopper-cricketYellow Scorpion
A robust, sandy-yellow scorpion of arid regions that spends daylight hours buried or hidden beneath stones, emerging at dusk to hunt.
arachnid
Peck's Skipper
A tiny, tawny-orange and brown skipper with a bold, irregular yellow patch on the underside of the hindwing that looks almost like a splash of paint.
butterfly
Sac Spider
A pale, uniformly colored spider that spins a small silk sac retreat rather than a capture web, often found tucked into rolled leaves or corners of rooms.
spiderHoverfly
A slender, bee- or wasp-patterned fly known for its remarkable ability to hover motionless in midair before darting suddenly to a new flower.
flyEastern Black Swallowtail Caterpillar
A striking green-and-black banded caterpillar dotted with yellow spots that flashes a bright orange forked horn when disturbed.
caterpillar-larva
Cabbage White
A common, small white butterfly with one or two black wing spots, whose green caterpillars are a familiar sight feeding on cabbage-family garden plants.
butterflyBird-dropping Spider
A lumpy, white-and-brown orb-weaver that spends its days motionless on a leaf, looking uncannily like a fresh splash of bird droppings.
spider
Carpenter Ant
A large, often shiny black ant that excavates smooth tunnels in dead or damp wood for nesting, recognizable by its size, evenly rounded thorax, and elbowed antennae.
ant
Termite
A pale, soft-bodied social insect that lives in hidden colonies and feeds on cellulose in wood and plant debris, often mistaken for an ant despite belonging to an entirely different insect order.
other
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.
beetle
Lacewing
A delicate, pale green insect with large, transparent, intricately veined wings and shining golden or copper-colored eyes, valued as a natural predator of aphids in its larval form.
other
Luna Moth Caterpillar
A large, plump, apple-green caterpillar with faint yellow side stripes and rows of small red-orange tubercles, the larval form of one of North America's most beautiful giant silk moths.
caterpillar-larvaSmall Tortoiseshell
A vivid orange-red European garden butterfly patterned with black and yellow blocks and a border of blue crescents, one of the most familiar and widely recognized butterflies across its range.
butterflyFunnel Weaver Spider
Nearly invisible until dew or morning frost outlines it in silver, the funnel weaver's sheet-and-tunnel web is a familiar sight across lawns and gardens, with its owner watching from the safety of a silken tube.
spider
Tawny Emperor
A warm orange-brown woodland butterfly, close relative of the Hackberry Emperor, best distinguished by its lack of a forewing eyespot and its habit of feeding on sap and dung rather than flowers.
butterfly
Parsley Worm
Banded in green, black, and yellow, the parsley worm rears up and flashes a bright orange, forked scent gland when disturbed, a signature defense of black swallowtail caterpillars.
caterpillar-larva
Periodical Cicada
A black-bodied cicada with striking red eyes and orange-veined wings, famous for emerging in massive, synchronized broods after spending 13 or 17 years developing underground.
true-bug
Milkweed Leaf Beetle
A large, boldly colored leaf beetle in glossy orange-red with irregular black patches, found feeding exclusively on milkweed plants alongside monarch caterpillars.
beetle
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
Hickory Horned Devil
An enormous, blue-green caterpillar armed with long, curved orange-red horns tipped in black, giving it a fearsome dragon-like appearance despite being completely harmless.
caterpillar-larva