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.

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-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
Green Peach Aphid
A small, pale yellow-green aphid with an exceptionally broad host range, recognized as one of the most widespread and adaptable aphid species found on garden vegetables, ornamentals, and stone fruit trees.
true-bug
Green Bottle Fly
A brilliantly iridescent, metallic green fly frequently seen basking on sunny surfaces outdoors, easily recognized by its shining emerald body and quick, buzzing flight.
fly
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
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
Green Stink Bug
A broad, shield-shaped bug in solid bright green with a shell-like appearance, easily disturbed off host plants and known for releasing a pungent odor when handled.
true-bug
Green Drake Mayfly
Famous among anglers for triggering explosive trout feeding frenzies, the Green Drake Mayfly is a large, striking insect whose brief springtime emergence is one of the most anticipated events on many rivers.
aquatic-insect
Green Shield Bug
A broad, shield-shaped true bug in solid bright green with a bronzy tinge in autumn, the green shield bug is one of the most commonly encountered stink bugs in European gardens and hedgerows.
true-bug
Green June Beetle
A large, velvety green scarab beetle with bronze edges that flies with a loud buzzing drone on warm summer days, often seen around ripening fruit.
beetle
Common Green Darner
A large green-and-blue dragonfly and the official state insect of Washington, best known among dragonfly watchers for an annual migration that spans multiple generations.
dragonfly
Southern Green Stink Bug
A large, shield-shaped, solid bright green true bug found on a wide variety of garden and crop plants across warm regions worldwide, recognizable by its broad body and, in some individuals, a row of small pale dots along the shoulders.
true-bug
Great Green Bush Cricket
Europe's largest bush cricket, this brilliant grass-green insect fills warm summer evenings with a loud, sustained buzzing call audible from a considerable distance.
grasshopper-cricket
Dragonfly
A large, agile aerial predator with an elongated body, enormous compound eyes, and two pairs of strong wings held straight out to the sides at rest, often seen patrolling over water in search of prey.
dragonfly
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.
flyDragonhunter
North America's largest clubtail, the Dragonhunter is a powerful predator that lives up to its name by capturing and eating other dragonflies, including species nearly its own size.
dragonfly
Dragonfly Nymph
A stocky, camouflaged underwater predator that spends months or years stalking prey along the pond bottom before transforming into an aerial dragonfly.
aquatic-insect
Emperor Dragonfly
One of Europe's largest and most powerful dragonflies, a fast, high-flying hunter with a bright sky-blue abdomen in males and a commanding, tireless patrol over open water.
dragonfly
Blue Dasher Dragonfly
A small, common dragonfly whose mature males combine a powdery blue abdomen with brilliant green eyes, often seen perched horizontally with its tail raised skyward.
dragonfly
Common Whitetail Dragonfly
A stocky pond-side dragonfly whose mature males sport a broad, chalky white abdomen that flashes conspicuously against boldly banded wings.
dragonflyWeaver 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
Spicebush Swallowtail
A black swallowtail with a blue-green wash across the hindwings and a row of pale spots along the forewing margin, whose caterpillars have famous large false eyespots and mimic the Pipevine Swallowtail as adults.
butterflySpicebush Swallowtail Caterpillar
A bulging-eyed green caterpillar that lives folded inside its own silk-stitched leaf tent, looking every bit like a miniature snake peering out from cover.
caterpillar-larva
Greenhead Fly
A stout, strikingly green-eyed horse fly that emerges from Atlantic salt marshes in midsummer swarms, where the females bite to feed on blood.
fly