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.

Cigarette Beetle
A tiny, reddish-brown, humpbacked beetle that rides along in stored dried herbs, spices, and tobacco wherever it hitches a ride.
beetle
Predaceous Diving Beetle
A sleek, streamlined beetle built for underwater hunting, carrying its own air supply as it patrols ponds in search of prey.
aquatic-insect
Punkie
An almost invisibly small biting fly that swarms near wetlands at dusk, where only the females take blood meals from animal hosts.
fly
Biting Midge
A minuscule, gray-winged fly that gathers in dense swarms near wetlands and can slip through window screens unnoticed.
fly
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
Money Spider
A tiny sheet-weaving spider, often seen drifting through the air on silk threads, traditionally said to bring good luck when it lands on you.
spider
Green Lynx Spider
A slender, bright green spider armed with long spiny legs that ambushes insects from flowers and shrubs without spinning a capture web.
spider
Spangled Skimmer
Named for the bright white 'spangles' at the base of its wings, the Spangled Skimmer pairs a powder-blue male body with crisp black-and-white wing markings.
dragonfly
Trichogramma Wasp
Barely larger than a speck of dust, the trichogramma wasp is one of the tiniest insects known. These minute parasitoids lay their eggs inside the eggs of moths and butterflies.
wasp
Prince Baskettail
One of the largest baskettail dragonflies, the Prince Baskettail is often seen tirelessly patrolling back and forth over water and open fields, rarely pausing to land.
dragonfly
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
Fishfly
A smaller, more modestly built cousin of the dobsonfly, often mistaken for its larger relative but lacking the dramatic elongated mandibles of male dobsonflies.
aquatic-insect
Caddisfly
A moth-like insect whose larvae are famous for constructing portable protective cases out of silk and whatever sand, twigs, or debris they can find.
aquatic-insect
Fruit Fly (Vinegar Fly)
A tiny tan fly with bright red eyes that seems to appear from nowhere the moment a piece of fruit begins to overripen or a splash of wine is left uncovered.
fly
Drain Fly
A tiny, fuzzy gray-tan fly with broad, moth-like wings held tent-fashion over its body, often seen resting motionless on bathroom walls near drains.
fly
Sphinx Moth
A large, streamlined, fast-flying moth with narrow triangular wings and a robust, tapering body, famous for hovering at flowers at dusk like a hummingbird.
moth
Sacred Scarab
A stout, matte-black dung beetle famous for rolling balls of dung across the ground with its hind legs, and revered in Ancient Egypt as a symbol of the sun and renewal.
beetle
Jewel Beetle
A sleek, bullet-shaped beetle wrapped in brilliant iridescent metallic colors — green, copper, blue, or gold — that seem to shift with the angle of light.
beetle
Common House Fly
A dull gray fly with four dark stripes down its back, the house fly is one of the most familiar insects on Earth, following people and their food waste to every continent.
fly
Black Swallowtail Caterpillar
A striking green caterpillar banded with black and dotted with yellow spots, famous for the bright orange, forked osmeterium it flicks out when disturbed.
caterpillar-larva
Mealworm
A tan, segmented larva with a shiny hard exoskeleton that tunnels through stored grain and flour before transforming into a darkling beetle.
caterpillar-larva
Tussock Moth Caterpillar
A boldly tufted caterpillar bristling with dense brush-like hair tussocks and long dark pencil plumes that give it an almost punk-rock silhouette.
caterpillar-larva
Tiger Swallowtail Caterpillar
A smooth green caterpillar with a swollen thorax marked by two large fake eyespots, giving it an uncanny resemblance to a tiny snake's head.
caterpillar-larva