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.
Mayfly 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.
aquatic-insect
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
Striped Bark Scorpion
A slender, tan scorpion marked with two bold dark stripes down its back, often found tucked under bark, rocks, or debris across the central United States.
arachnid
Green Grasshopper
A bright grass-green grasshopper with a rasping, sustained song, the common green grasshopper is one of the most familiar sounds of a European summer meadow.
grasshopper-cricketField Cricket
A stout, dark cricket whose loud, rhythmic chirping is one of the most familiar summer and fall night sounds in fields and lawns across much of the world.
grasshopper-cricketGreen Lacewing
With delicate pale green wings and glittering golden eyes, the Green Lacewing is a familiar garden insect whose larvae are voracious predators of aphids and other soft-bodied pests.
other
Brimstone Butterfly
A sulphur-yellow, leaf-shaped butterfly whose folded wings mimic a fresh green leaf so convincingly it is often credited as the origin of the word 'butterfly'.
butterfly
Bluet Damselfly
Small and delicate, bluet damselflies flash brilliant blue and black along the vegetated edges of ponds and lakes, forming mating pairs that fly in tandem while laying eggs directly into plant stems underwater.
dragonfly
Bagworm Moth
A moth best known for its larva's habit of constructing and living inside a spindle-shaped case of silk and plant debris that hangs from twigs, with adult males a plain sooty-winged moth and females remaining wingless and grub-like inside the bag for life.
moth
Clouded Sulphur
A medium-sized pale yellow butterfly with crisp black wing borders, commonly seen fluttering low over clover fields and roadside meadows across North America.
butterfly
Fox Moth
A stout, reddish-brown moth with a pale diagonal band across each forewing, closely resembling a fox in color, most often noticed as its large, densely furred dark caterpillar basking on open ground in spring.
mothRat-Tailed Maggot
Named for its long, thin, telescoping breathing tube, the rat-tailed maggot is the aquatic larva of the drone fly, thriving in stagnant, low-oxygen water where few other insects can survive.
aquatic-insect
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.
butterfly
Green Darner Dragonfly
One of the largest and most widespread dragonflies in North America, its green thorax and target-marked face make it unmistakable as it patrols open water on powerful wings.
dragonfly
Furniture Beetle
A tiny, reddish-brown to dark brown cylindrical beetle whose larvae, commonly called 'woodworm,' bore small round tunnels through seasoned furniture and timber.
beetle
Earthworm
A long, smooth, segmented soil-dweller with no legs, eyes, or shell, best recognized by its ringed body and the pale saddle-like band (clitellum) found on mature individuals.
other
Black Garden Ant
A familiar small, glossy black ant that forms visible foraging trails across patios and garden paths and nests beneath stones, pavers, and lawns.
antCulex Mosquito
A large, worldwide genus of plain brown mosquitoes recognizable by their blunt abdomens and habit of resting flat against surfaces.
fly
Black Swallowtail
A striking black swallowtail with two rows of yellow spots and a patch of blue scaling on the hindwings, whose green-and-black banded caterpillars are a familiar sight on garden dill, parsley, and carrot foliage.
butterfly
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
Silkworm
Plump, pale, and utterly dependent on humans, the silkworm is the domesticated caterpillar behind thousands of years of silk production, spinning a single continuous thread of silk to form its cocoon.
caterpillar-larvaPine Processionary Moth
An unremarkable grey-brown moth known almost entirely through its larvae, which build large silken nests in pine trees and travel to feed in long, head-to-tail processions covered in fine defensive hairs.
moth
Monarch's Milkweed
A boldly orange-and-black true bug that shares milkweed plants with Monarch butterfly caterpillars, often clustering in large groups on seed pods and stems.
true-bug
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