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.
Diana Fritillary
A large southern Appalachian fritillary famous for extreme sexual dimorphism — males are burnt-orange and black while females are an iridescent blue-black that mimics a distasteful swallowtail.
butterfly
Potato Bug
A rounded, boldly striped beetle in cream and black that feeds on potato and other nightshade foliage, easily recognized by the ten black stripes running down its wing covers.
beetle
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.
spider
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
Cinnabar Moth
A striking black-and-red day-flying moth whose boldly banded orange-and-black caterpillars feed conspicuously on ragwort, sequestering plant compounds as a chemical defense advertised by their vivid warning colors.
mothZebra Longwing Caterpillar
A creamy-white caterpillar dotted with black spots and armed with branching black spines, feeding exclusively on passionflower vines whose chemistry it stores for defense.
caterpillar-larva
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.
butterflyAlderfly
A small, dusky-winged insect that flutters weakly among streamside alders and shrubs, the diminutive relative of the mighty dobsonfly.
aquatic-insect
Locust Borer
A slender black longhorn beetle boldly striped with yellow, closely resembling a wasp, commonly seen visiting goldenrod flowers in autumn near black locust trees.
beetleFlea Beetle
A tiny, shiny beetle that springs away like a flea when disturbed, leaving characteristic small round holes peppered across the leaves it feeds on.
beetle
American House Spider
A small, brownish spider with a bulbous, mottled abdomen that spins loose, irregular tangle webs in quiet corners, ceilings, and window frames.
spider
Giant Leopard Moth
A striking white moth patterned with bold, hollow black rings and dots resembling leopard spots, revealing an iridescent blue-black abdomen marked with orange when its wings part, making it one of the most eye-catching tiger moths in North America.
mothRoot Maggot
A small, legless white grub that lives hidden in the soil, tunneling into the roots of cabbage-family vegetables where it feeds unseen.
flyOgre-faced Spider
A twig-like nocturnal spider with enormous, light-gathering eyes that weaves a small rectangular net and hurls it over passing prey in a lightning-fast ambush.
spiderHouse Spider
A small, round-bodied brown spider with mottled markings that spins tangled, irregular cobwebs in quiet corners, ceilings, and undisturbed indoor spaces.
spider
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
Ghost Mantis
A small, angular mantis crowned with a leaf-shaped crest, so thoroughly disguised as a withered leaf that it seems to vanish into dead foliage.
mantis-stick
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
Gulf Fritillary Caterpillar
A vivid burnt-orange caterpillar bristling with rows of branched black spines that specializes almost exclusively on passionflower vines.
caterpillar-larva
Saucer Bug
Flattened and rounded like its namesake, the saucer bug is a stout, oval predator that lurks among pondweed, ambushing small invertebrates and other prey with a piercing beak.
true-bugWall Spider
A tiny, flattened spider that spins a small disc-shaped web hugging the surface of a wall and darts sideways in a quick, erratic dash when disturbed.
spider
Snout Beetle
A small beetle instantly recognized by its elongated, downward-curving snout, tipped with chewing mouthparts, used to bore into seeds, nuts, stems, or fruit.
beetle
Ruby Meadowhawk
A small, brilliant-red dragonfly of late summer meadows, so intensely colored that mature males seem to glow when perched low in the grass.
dragonfly
Horn Fly
A tiny, dark fly that clusters in dense patches on the backs and shoulders of grazing cattle, using piercing mouthparts to take frequent small blood meals.
fly