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.
Screwworm Fly
A metallic blue-green blowfly whose larvae are unusual among maggots for feeding on living tissue rather than carrion, drawn to even small open wounds on warm-blooded animals. The species has been the target of one of the most successful large-scale insect eradication campaigns in history across much of North America.
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Bot Fly
A stocky, bumblebee-mimicking fly whose adults never feed and live only long enough to mate and locate a rodent or rabbit burrow for their eggs. Despite their harmless, buzzing adult stage, bot flies are best known through the larvae that develop as internal parasites of small mammals.
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Louse Fly
A flattened, leathery-bodied fly that clamps onto fur or feathers with stout claws and scuttles sideways like a tiny crab rather than taking flight when disturbed. Several species shed their wings for good once they settle on a permanent host, spending the rest of their lives buried in fleece or plumage.
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Dung Fly
A hairy, often golden-hued fly commonly seen perched on fresh manure in pastures, where it hunts smaller insects as an adult while its larvae develop within the dung itself.
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Soldier Fly
A wasp-mimicking fly with a flattened, often metallic body that spends its larval life quietly breaking down decaying plant matter or aquatic debris.
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Biting Midge
A minuscule, gray-winged fly that gathers in dense swarms near wetlands and can slip through window screens unnoticed.
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Yellow Fever Mosquito
A dark mosquito marked with a lyre-shaped pattern of white scales on its thorax, closely tied to human dwellings and the water-filled containers people leave standing around them.
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Black Fly
A small, humpbacked black fly with clear wings that gathers in persistent swarms near flowing streams, favoring exposed skin around the head.
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Dance Fly
A slender, long-legged predatory fly named for the swarming courtship dances males perform at dusk, often while carrying a captured insect as an offering.
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Cluster Fly
A sluggish, dark fly covered in fine golden hairs that gathers by the hundreds on sun-warmed walls in autumn before slipping indoors to spend the winter.
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Flesh Fly
A bristly gray fly marked with three dark thoracic stripes and a checkerboard-patterned abdomen, often spotted hovering near carrion or garbage.
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Tsetse Fly
A stout grayish-brown fly of African woodlands whose rigid, forward-jutting proboscis and scissor-folded wings set it apart from any ordinary house fly.
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Robber Fly
A powerfully built, bristly-faced predatory fly that ambushes other flying insects in midair, piercing them with a stout beak-like proboscis.
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Bee Fly
A fuzzy, bee-mimicking fly with a long, forward-pointing proboscis that hovers motionless in front of spring flowers while sipping nectar.
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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.
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Mosquito
A slender, long-legged fly with a needle-like proboscis, narrow wings, and a distinctive high-pitched wing hum, most active around dawn, dusk, and in shaded, humid areas.
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House Fly
A gray, fuzzy-bodied fly with four dark stripes on its thorax and large reddish compound eyes, famous for its erratic buzzing flight and tendency to land repeatedly on food and surfaces.
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Common Housefly
A dull gray fly with four dark stripes on its thorax and large reddish eyes, one of the most widespread insects on Earth thanks to its close association with human food and waste.
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