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.
Bagrada Bug
A tiny, orange-and-black stink bug with an intricate mottled pattern, notable as a small-bodied specialist pest of cabbage-family plants in warm, dry climates.
true-bug
Question Mark Butterfly
A ragged-edged anglewing butterfly named for the tiny silver question-mark squiggle on its mottled brown underside, with tawny-orange upperwings dotted in black.
butterfly
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
Casemaking Clothes Moth
A small mottled moth whose larva builds a tiny portable silk case, dragging its own protective shelter along as it grazes on wool and fur.
mothBrown Lacewing
Smaller and less conspicuous than its green relatives, the Brown Lacewing is a subtle but effective predator of aphids and other tiny insects in gardens, forests, and orchards.
other
Little Yellow
A tiny, pale lemon-yellow butterfly with a thin, crisp black wing border, fluttering close to the ground in fields and roadsides across the southern and eastern United States.
butterfly
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
Fruit Fly
A tiny tan fly with prominent red eyes that swarms around overripe fruit, wine, and vinegar, appearing seemingly out of nowhere thanks to an extremely fast life cycle.
fly
Karner Blue
A tiny, silvery-blue butterfly dependent entirely on wild lupine and now known chiefly from a small number of protected sandy-soil habitats in the Great Lakes and Northeast.
butterflyRiffle Beetle
Tiny and unassuming, riffle beetles cling tightly to submerged rocks in swift, clean streams for their entire lives, making them one of the most reliable living indicators of healthy water.
beetleRipple Bug
A tiny, dark true bug that skates across the surface film of calm water, producing the faint ripples that give it its common name as it hunts for small prey trapped at the surface.
aquatic-insectHummingbird Moth
Hovering at flowers with a blur of wings and a long uncoiling tongue, the hummingbird moth is easily mistaken for a tiny hummingbird. These plump, fast-flying hawk moths feed on nectar in broad daylight.
moth
Red Flour Beetle
A tiny, flattened, rust-red beetle found in stored flour and grain worldwide, capable of flight and closely resembling the confused flour beetle apart from the shape of its antennal club.
beetle
Marsh Treader
An extremely slender, thread-like true bug that walks slowly and deliberately across the water's surface on stilt-like legs, resembling a tiny floating twig as it hunts among marsh vegetation.
aquatic-insect
Clothes Moth
A tiny, pale golden moth that avoids light and flutters weakly from dark closets, more often noticed by the damage its larvae leave in stored fabrics than by the moth itself.
moth
Chicken Mite
A tiny, blood-feeding mite that hides in cracks and crevices of poultry housing by day and emerges at night to feed on roosting birds, turning a dull gray to deep red after a blood meal.
arachnid
Common Clothes Moth
A tiny, plain golden-buff moth that rarely flies far into open light, best known not for its adult form but for its silk-spinning larvae that chew holes in wool, fur, and feathers.
mothTiger 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
Twenty-plume Moth
A tiny, unusual moth whose wings are each divided into numerous slender, feather-like plumes rather than solid membranes, giving it a delicate, fringed appearance unlike almost any other moth.
moth
Scarab Beetle
A broad, often glossy beetle family recognized by its distinctive fan-like clubbed antennae, ranging from tiny dung-rollers to massive horned giants, found on every continent except Antarctica.
beetle
Eastern Tailed-Blue
A tiny gossamer-wing butterfly with a delicate thread-like tail on each hindwing and a small orange spot near the tail base, common in open weedy habitats throughout the eastern half of North America.
butterfly
Thorn Bug
A tiny treehopper whose greatly enlarged, thorn-shaped pronotum lets it disappear in plain sight among the real thorns of the branches it clusters on.
true-bugSnakefly
A slender predator named for its habit of rearing up its long, mobile neck like a tiny cobra when hunting or threatened.
otherBooklice (Psocid)
A tiny, soft-bodied, pale insect barely visible to the naked eye that grazes on mold and mildew in damp books, wallpaper, and stored goods.
other