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.

Aphid
A tiny, soft-bodied, pear-shaped insect that clusters in dense colonies on plant stems and leaf undersides, feeding on sap through needle-like mouthparts and often coated in sweet honeydew.
true-bug
Mantidfly
A master of mimicry that pairs a praying mantis's raptorial front legs with the delicate, lacy wings of a true net-winged insect.
other
Alderfly
A small, dusky-winged insect that flutters weakly among streamside alders and shrubs, the diminutive relative of the mighty dobsonfly.
aquatic-insect
Armyworm
A striped, greenish-brown caterpillar that gets its name from its habit of migrating in dense, destructive groups across grass and grain fields.
caterpillar-larva
Giant African Millipede
One of the largest millipedes in the world, a slow-moving, cylindrical detritivore covered in hundreds of tiny legs that curls into a tight defensive coil when disturbed.
myriapod
Snakefly
A slender predator named for its habit of rearing up its long, mobile neck like a tiny cobra when hunting or threatened.
other
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-cricket
No-See-Um
A speck-sized fly so tiny it seems to vanish from sight, yet capable of swarming exposed skin near beaches and marshes at dawn and dusk.
fly
Seven-spotted Ladybird
A classic bright red ladybird with exactly seven black spots, one of the most iconic and widely recognized beetles in the world.
beetle
Autumn Meadowhawk
One of the last dragonflies still flying as autumn cools, this small pale-legged meadowhawk can be found sunning on trails and pond banks well into November in many areas.
dragonfly
Asian Tiger Mosquito
A small, dark mosquito boldly marked with silvery-white stripes, including one distinctive stripe running straight down the center of its back, that bites readily in broad daylight.
fly
Woolly Aphid
A tiny, soft-bodied aphid that hides beneath a dense coat of white, cottony wax filaments, often appearing as fuzzy white patches clustered on bark or twigs rather than as recognizable insects.
true-bug
American Grasshopper
A large, strong-flying grasshopper related to the locusts of the Old World, the American grasshopper can occasionally form dense, damaging aggregations across the southern United States.
grasshopper-cricket
Face Fly
A house fly look-alike that clusters persistently around the eyes, muzzle, and face of grazing livestock to feed on moisture and secretions.
fly
Termite Swarmer
A dense, short-lived cloud of dark, equal-winged insects pouring from a crack in soil or wood, each one a would-be founder of a brand-new termite colony.
other
Pharaoh Ant
A tiny, pale-yellow ant that thrives almost exclusively indoors, forming vast interconnected colonies within the warm voids of heated buildings.
ant
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
Cobweb Spider
A common household spider that spins a messy, three-dimensional tangle of silk in dark corners and drags entangled insects up into the maze to feed.
spider
Indian Stick Insect
A slender, twig-mimicking insect so unremarkable in stillness that it disappears among the stems it feeds on, one of the most widely raised stick insects in the world.
mantis-stick
Dead Leaf Mantis
A master of disguise whose broad, curled, vein-textured body is nearly indistinguishable from a curled, decaying leaf lying on the forest floor.
mantis-stick
Culex Mosquito
A large, worldwide genus of plain brown mosquitoes recognizable by their blunt abdomens and habit of resting flat against surfaces.
fly
Field 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-cricket
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
Goliath Beetle
One of the largest and heaviest beetles on Earth, a massive scarab with a bold pattern of black, white, and brown stripes across its shield-like body.
beetle