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.

Weaver Ant
A tree-dwelling ant that builds its nest by stitching living leaves together with silk produced by its own larvae, forming elaborate arboreal colonies defended fiercely by its workers.
ant
Pavement Ant
A stocky brown to black ant famous for the dramatic "ant wars" its colonies wage along sidewalk cracks each spring.
ant
Ant-mimic Spider
A slender jumping spider that walks on six legs while waving the front pair like antennae, convincingly passing itself off as an ant to fool predators and prey alike.
spider
Leafcutter Ant
A highly organized ant famous for marching in long trails while carrying disc-shaped pieces of leaf many times their own size, which they use to cultivate fungus gardens deep underground.
ant
Ant-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.
mantis-stick
Antheraea Silkmoth
A large, robust silkmoth in the genus Antheraea with broad reddish-brown to tan wings, each marked with a prominent transparent, eye-like spot, representing a group of giant moths long valued for producing wild silk.
moth
Vietnamese Walking Stick
A slender tropical stick insect popular in classrooms and terrariums, notable for females that can produce healthy offspring entirely on their own, without ever mating.
mantis-stick
Walking Stick
A remarkably twig-like insect with a long, slender, brown to green body and thin legs, so effective at mimicking a plant stem that it can be nearly invisible while motionless on vegetation.
mantis-stick
Granary Weevil
A small, shiny, dark reddish-brown to black weevil with a long curved snout that is unable to fly, spending its entire life cycle within stores of wheat and other cereal grains.
beetle
Giant Walking Stick
The longest insect in the United States, this brown, thread-thin giant sways gently on its perch to complete the illusion of a wind-stirred twig.
mantis-stick
Wood Tick
A flattened, ornately patterned tick that waits on low brush in the Rocky Mountain foothills, ready to grab onto large mammals passing within reach. Its mottled, shield-marked back makes it one of the more distinctive North American ticks to identify.
arachnid
Mealybug
A soft, oval insect coated in a powdery white waxy secretion that gives it a fuzzy, cotton-like appearance, typically found clustered in leaf joints and along stems of houseplants.
true-bug
Thrips
A minuscule, slender insect with fringed, feather-like wings, often noticed only as a fast-moving dark speck darting across a flower petal or windowsill.
other
Lone Star Tick
Named for the single silvery-white spot on the back of the adult female, the lone star tick is unusually active for a tick, moving toward hosts rather than simply waiting for them to pass. Its reddish-brown, ornamented body makes it one of the easier North American ticks to identify at a glance.
arachnid
Cigarette Beetle
A tiny, reddish-brown, humpbacked beetle that rides along in stored dried herbs, spices, and tobacco wherever it hitches a ride.
beetle
Giant Water Bug
A massive, flattened oval true bug with powerful grasping front legs, the giant water bug is North America's largest aquatic insect and an ambush predator lurking just below the surface of still water.
aquatic-insect
Vine Weevil
A slow, flightless, matte-black beetle that hides by day and emerges at night to notch neat semicircular bites from the edges of leaves.
beetle
Big-Eyed Bug
A small, broad-headed true bug named for its noticeably large, bulging compound eyes, the big-eyed bug is a beneficial predator that patrols low vegetation and soil surfaces for small pest insects.
true-bug
Whitefly
A tiny, moth-like white insect that clusters on the undersides of leaves and bursts into a snowy cloud when the plant is disturbed. Despite the name, it is not a true fly but a sap-feeding relative of aphids and scale insects.
true-bug
Leafcutter Bee
A stout, dark-bodied bee best known not for how it looks but for the neat, circular or oval notches it cuts from leaves, which it uses to line and seal its nest cells.
bee
Vivid Dancer
A brilliant violet-blue damselfly of western streams, the Vivid Dancer is one of the most striking members of the dancer genus and is notably tolerant of warm, mineral-rich waters.
dragonfly
Hackberry Emperor
A brown-and-cream butterfly closely tied to hackberry trees, notable for its bold eyespots and habit of landing on people, cars, and other unusual surfaces rather than flowers.
butterfly
Tube Web Spider
A sleek, cylindrical spider that lives inside a silk-lined tube and dashes out to seize insects that stumble across its radiating trip-lines.
spider
Mesh Web Weaver
A tiny, easily overlooked spider that spins a loose, bluish tangle of fuzzy silk over twig tips and seed heads to snare small insects.
spider