Egg / life_stage
52 entr(ies)
Acrobat Ant
A small, shiny ant named for the heart-shaped rear segment it flips up over its back when alarmed; it nests in damp or rotting wood and tends aphids for their honeydew, sometimes wandering indoors to forage.American Cockroach
A large, reddish-brown cockroach that lives mostly in warm, damp places like sewers, drains, and basements, wandering indoors in search of food, water, or shelter from harsh weather.Argentine Ant
A tiny dull-brown invasive ant that forms enormous multi-queen "supercolonies" and follows long indoor trails to sweets and water, especially when the weather turns wet or hot and dry.Bald-faced Hornet
A large black-and-white social wasp, despite its name a kind of yellowjacket, that builds a gray, pear-shaped paper nest hung in trees or under eaves and defends it aggressively when disturbed.Bed Bug
A small, flat, reddish-brown blood-feeding insect that hides in beds, furniture, and cracks near where people sleep and feeds on human blood at night.Black Carpenter Ant
A large, dull-black ant that nests in moist or decaying wood, tunneling galleries to build its colony rather than eating the wood like a termite.Black-and-yellow Mud Dauber
A slender, black-and-yellow solitary wasp that builds small mud nests under eaves and in sheltered corners, hunting spiders to feed its young; docile and rarely stings.Blacklegged Tick
A small, dark-legged tick of the eastern and north-central United States that feeds on mammals and birds and is the main carrier of the Lyme disease bacterium.Boxelder Bug
A black-and-red true bug that feeds on female boxelder trees in summer and gathers on and inside warm buildings in fall, making it a harmless cool-season nuisance pest.Brown Dog Tick
A reddish-brown three-host tick that strongly prefers dogs as its host and is unusual in being able to complete its entire life cycle indoors, infesting homes and kennels.Brown Marmorated Stink Bug
A shield-shaped, mottled-brown invasive stink bug from East Asia that crowds into homes in fall to overwinter and releases a foul odor when disturbed, but does not bite, breed indoors, or damage the structure.Brown Recluse
A shy, venomous brown spider of the south-central United States, known for six eyes in three pairs and a violin-shaped mark, whose bite can occasionally cause a slow-healing skin wound.Brown-banded Cockroach
A small indoor cockroach that favors warm, dry, elevated spots throughout a building, named for the pale bands across its wings and abdomen.Cat Flea
A tiny, wingless, blood-feeding insect that is the flea most often found on pet cats and dogs in U.S. homes, biting both animals and people and breeding in carpets, bedding, and pet resting areas.Cigarette Beetle
A tiny, humpbacked, reddish-brown beetle that infests a wide range of dried stored goods, from spices and pet food to tobacco, tunneling through the product as a larva and flying toward light as an adult.Clover Mite
A tiny reddish-brown plant-feeding mite, recognized by an extra-long front pair of legs, that lives on lawns and ornamentals and pours into buildings in large numbers during spring and cool spells, harmless but prone to leaving red stains when crushed.Cluster Fly
A sluggish, slightly oversized relative of the house fly whose larvae are parasites of earthworms outdoors, and whose adults pile into attics and wall voids of homes in fall to wait out the winter.Common Pillbug
A small, gray, land-dwelling crustacean that rolls into a tight ball when disturbed, lives in damp soil and leaf litter, and feeds harmlessly on decaying plant material.Drain Fly
A small, fuzzy moth-like fly whose larvae develop in the organic film inside drains, sewers, and standing water; the adult is a harmless nuisance and the larva is a beneficial decomposer.Drugstore Beetle
A tiny, humpbacked reddish-brown beetle that infests stored dry foods, spices, and even non-food goods, with larvae tunneling through the substrate to feed on almost anything dry in a pantry, kitchen, or warehouse.Eastern Carpenter Bee
A large, shiny-backed native bee that chews round tunnels into bare wood to raise its young, often nesting in decks, eaves, and trim while doubling as an important pollinator.Eastern Subterranean Termite
A soil-dwelling, wood-eating social insect that is the most widely distributed termite species in the eastern United States and a major structural pest.Eastern Yellowjacket
A native, black-and-yellow social wasp that nests underground in lawns, woods, and pastures across the eastern United States, hunting other insects but defending its hidden nest aggressively with repeated, painful stings.European Earwig
A reddish-brown, nocturnal insect best known for the pincer-like forceps at the tip of its abdomen; it shelters in damp, dark spots by day and sometimes wanders into homes in large numbers.Formosan Subterranean Termite
An invasive subterranean termite that builds enormous underground colonies and aerial carton nests, attacking structural wood and even living trees far faster than native termites.Fruit Fly
A tiny tan-to-brown fly with red eyes that breeds in overripe, fermenting, or damaged fruit and the moist residue in drains, found around kitchen counters and trash.German Cockroach
A small indoor cockroach found worldwide in association with humans, living near food, water, and warmth in kitchens, bathrooms, restaurants, and food-storage areas.Honey Bee
A fuzzy, golden-brown social bee that lives year-round in large colonies and is one of the most important pollinators of food crops — a beneficial insect, not a pest, that should be relocated by a beekeeper rather than exterminated.House Cricket
A light yellowish-brown cricket with three dark bands across its head that lives outdoors in warm weather and moves into buildings when it turns cool, best known for the male's chirping and for being raised as fishing bait and pet food.House Fly
A gray, four-striped filth fly that breeds in manure, garbage, and decaying matter and contaminates food and surfaces by carrying germs on its body and in its saliva and droppings.Indianmeal Moth
A small, two-tone moth whose caterpillars infest stored dry foods such as grain products, cereal, dried fruit, nuts, pet food, and birdseed, leaving telltale silk webbing behind in the package.Little Black Ant
A tiny, shiny jet-black ant native to North America that nests in soil and inside structures, follows visible foraging trails indoors, and turns up in kitchens and pantries hunting for food and a little moisture.Northern House Mosquito
A small, light-brown mosquito of the northern United States and southern Canada that breeds in stagnant, organically rich water and is the region's main carrier of West Nile virus.Odorous House Ant
A tiny brown-to-black household ant that gives off a sharp, rotten-coconut smell when crushed and trails indoors after sweets, especially in damp weather.Old House Borer
A longhorned beetle whose larvae tunnel for years inside seasoned softwood timbers, most often pine, slowly weakening structural wood in buildings.Oriental Cockroach
A large, dark, slow-moving cockroach that favors cool, damp places like basements, drains, crawl spaces, and outdoor foundation areas, and is often called a "waterbug."Pacific Dampwood Termite
A large, caramel-to-dark-brown termite of the Pacific coast that nests inside moist, water-damaged wood rather than in soil, found from British Columbia to Baja California.Paper Wasp
A slender, long-legged wasp that builds an open, umbrella-shaped paper nest under eaves and overhangs. A useful caterpillar predator outdoors, but it will sting in defense of a nest placed too close to people.Pavement Ant
A small dark-brown to black ant that nests in soil along cracks in sidewalks, driveways, and foundations and wanders indoors after crumbs, sweets, and grease.Pharaoh Ant
A tiny pale-yellow to reddish-brown ant that nests in warm, hidden voids inside heated buildings, forms sprawling multi-queen colonies, and is both the hardest household ant to control and a documented contamination concern in hospitals.Powderpost Beetle
A small reddish-brown wood-boring beetle whose larvae feed on the starch in hardwood sapwood, leaving round pinhole exits and a fine, flour-like powder that gives the group its name.Red Flour Beetle
A tiny, shiny reddish-brown beetle that infests flour, cereal, and other dried, finely ground foods in pantries, mills, and warehouses, contaminating far more than it eats.Red Imported Fire Ant
An aggressive, stinging, reddish-brown ant from South America that builds dome-shaped soil mounds across the southern U.S. and swarms to sting when its nest is disturbed.Rice Weevil
A tiny reddish-brown snout beetle whose grubs develop hidden inside whole grain kernels, making it one of the most damaging pests of stored grain, flour, birdseed, and pantry staples worldwide.Sawtoothed Grain Beetle
A tiny, very flat brown beetle with saw-like teeth along the sides of its thorax that infests stored cereals, pasta, dried fruit, and other pantry foods in homes, groceries, and grain stores worldwide.Silverfish
A small, wingless, silver-gray insect with a teardrop shape and three tail-like bristles that lives in cool or damp indoor spaces and feeds on paper, starch, and other carbohydrate-rich materials.Smokybrown Cockroach
A large, uniformly dark mahogany-brown peridomestic cockroach of the warm southern U.S. that breeds outdoors in mulch, woodpiles, and tree holes and flies indoors, especially into attics, on warm humid evenings.Tawny Crazy Ant
A small, uniformly reddish-brown invasive ant that swarms in huge numbers across the Gulf Coast, moving in fast, erratic trails and nesting in soil, debris, and electrical equipment rather than in tidy mounds.Western Black Widow
A shiny black, web-bound spider of the western United States, the female marked underneath with a red hourglass; medically significant but timid, living low to the ground in dark, undisturbed clutter around buildings.Western Drywood Termite
A wood-nesting termite of the western U.S. that lives entirely inside dry, sound wood — framing, furniture, dead tree limbs — without any contact with soil, betraying itself mainly by piles of tiny six-sided fecal pellets.Wolf Spider
A large, hairy, ground-dwelling hunting spider that chases down prey on foot instead of spinning a web, sheltering under boards, stones, and siding and sometimes wandering indoors near ground level.Yellow Fever Mosquito
A small dark, day-biting container mosquito with lyre-shaped thorax markings that breeds in standing water around homes and is the primary vector of yellow fever, dengue, Zika, and chikungunya viruses.
A small, shiny ant named for the heart-shaped rear segment it flips up over its back when alarmed; it nests in damp or rotting wood and tends aphids for their honeydew, sometimes wandering indoors to forage.American Cockroach
A large, reddish-brown cockroach that lives mostly in warm, damp places like sewers, drains, and basements, wandering indoors in search of food, water, or shelter from harsh weather.Argentine Ant
A tiny dull-brown invasive ant that forms enormous multi-queen "supercolonies" and follows long indoor trails to sweets and water, especially when the weather turns wet or hot and dry.Bald-faced Hornet
A large black-and-white social wasp, despite its name a kind of yellowjacket, that builds a gray, pear-shaped paper nest hung in trees or under eaves and defends it aggressively when disturbed.Bed Bug
A small, flat, reddish-brown blood-feeding insect that hides in beds, furniture, and cracks near where people sleep and feeds on human blood at night.Black Carpenter Ant
A large, dull-black ant that nests in moist or decaying wood, tunneling galleries to build its colony rather than eating the wood like a termite.Black-and-yellow Mud Dauber
A slender, black-and-yellow solitary wasp that builds small mud nests under eaves and in sheltered corners, hunting spiders to feed its young; docile and rarely stings.Blacklegged Tick
A small, dark-legged tick of the eastern and north-central United States that feeds on mammals and birds and is the main carrier of the Lyme disease bacterium.Boxelder Bug
A black-and-red true bug that feeds on female boxelder trees in summer and gathers on and inside warm buildings in fall, making it a harmless cool-season nuisance pest.Brown Dog Tick
A reddish-brown three-host tick that strongly prefers dogs as its host and is unusual in being able to complete its entire life cycle indoors, infesting homes and kennels.Brown Marmorated Stink Bug
A shield-shaped, mottled-brown invasive stink bug from East Asia that crowds into homes in fall to overwinter and releases a foul odor when disturbed, but does not bite, breed indoors, or damage the structure.Brown Recluse
A shy, venomous brown spider of the south-central United States, known for six eyes in three pairs and a violin-shaped mark, whose bite can occasionally cause a slow-healing skin wound.Brown-banded Cockroach
A small indoor cockroach that favors warm, dry, elevated spots throughout a building, named for the pale bands across its wings and abdomen.Cat Flea
A tiny, wingless, blood-feeding insect that is the flea most often found on pet cats and dogs in U.S. homes, biting both animals and people and breeding in carpets, bedding, and pet resting areas.Cigarette Beetle
A tiny, humpbacked, reddish-brown beetle that infests a wide range of dried stored goods, from spices and pet food to tobacco, tunneling through the product as a larva and flying toward light as an adult.Clover Mite
A tiny reddish-brown plant-feeding mite, recognized by an extra-long front pair of legs, that lives on lawns and ornamentals and pours into buildings in large numbers during spring and cool spells, harmless but prone to leaving red stains when crushed.Cluster Fly
A sluggish, slightly oversized relative of the house fly whose larvae are parasites of earthworms outdoors, and whose adults pile into attics and wall voids of homes in fall to wait out the winter.Common Pillbug
A small, gray, land-dwelling crustacean that rolls into a tight ball when disturbed, lives in damp soil and leaf litter, and feeds harmlessly on decaying plant material.Drain Fly
A small, fuzzy moth-like fly whose larvae develop in the organic film inside drains, sewers, and standing water; the adult is a harmless nuisance and the larva is a beneficial decomposer.Drugstore Beetle
A tiny, humpbacked reddish-brown beetle that infests stored dry foods, spices, and even non-food goods, with larvae tunneling through the substrate to feed on almost anything dry in a pantry, kitchen, or warehouse.Eastern Carpenter Bee
A large, shiny-backed native bee that chews round tunnels into bare wood to raise its young, often nesting in decks, eaves, and trim while doubling as an important pollinator.Eastern Subterranean Termite
A soil-dwelling, wood-eating social insect that is the most widely distributed termite species in the eastern United States and a major structural pest.Eastern Yellowjacket
A native, black-and-yellow social wasp that nests underground in lawns, woods, and pastures across the eastern United States, hunting other insects but defending its hidden nest aggressively with repeated, painful stings.European Earwig
A reddish-brown, nocturnal insect best known for the pincer-like forceps at the tip of its abdomen; it shelters in damp, dark spots by day and sometimes wanders into homes in large numbers.Formosan Subterranean Termite
An invasive subterranean termite that builds enormous underground colonies and aerial carton nests, attacking structural wood and even living trees far faster than native termites.Fruit Fly
A tiny tan-to-brown fly with red eyes that breeds in overripe, fermenting, or damaged fruit and the moist residue in drains, found around kitchen counters and trash.German Cockroach
A small indoor cockroach found worldwide in association with humans, living near food, water, and warmth in kitchens, bathrooms, restaurants, and food-storage areas.Honey Bee
A fuzzy, golden-brown social bee that lives year-round in large colonies and is one of the most important pollinators of food crops — a beneficial insect, not a pest, that should be relocated by a beekeeper rather than exterminated.House Cricket
A light yellowish-brown cricket with three dark bands across its head that lives outdoors in warm weather and moves into buildings when it turns cool, best known for the male's chirping and for being raised as fishing bait and pet food.House Fly
A gray, four-striped filth fly that breeds in manure, garbage, and decaying matter and contaminates food and surfaces by carrying germs on its body and in its saliva and droppings.Indianmeal Moth
A small, two-tone moth whose caterpillars infest stored dry foods such as grain products, cereal, dried fruit, nuts, pet food, and birdseed, leaving telltale silk webbing behind in the package.Little Black Ant
A tiny, shiny jet-black ant native to North America that nests in soil and inside structures, follows visible foraging trails indoors, and turns up in kitchens and pantries hunting for food and a little moisture.Northern House Mosquito
A small, light-brown mosquito of the northern United States and southern Canada that breeds in stagnant, organically rich water and is the region's main carrier of West Nile virus.Odorous House Ant
A tiny brown-to-black household ant that gives off a sharp, rotten-coconut smell when crushed and trails indoors after sweets, especially in damp weather.Old House Borer
A longhorned beetle whose larvae tunnel for years inside seasoned softwood timbers, most often pine, slowly weakening structural wood in buildings.Oriental Cockroach
A large, dark, slow-moving cockroach that favors cool, damp places like basements, drains, crawl spaces, and outdoor foundation areas, and is often called a "waterbug."Pacific Dampwood Termite
A large, caramel-to-dark-brown termite of the Pacific coast that nests inside moist, water-damaged wood rather than in soil, found from British Columbia to Baja California.Paper Wasp
A slender, long-legged wasp that builds an open, umbrella-shaped paper nest under eaves and overhangs. A useful caterpillar predator outdoors, but it will sting in defense of a nest placed too close to people.Pavement Ant
A small dark-brown to black ant that nests in soil along cracks in sidewalks, driveways, and foundations and wanders indoors after crumbs, sweets, and grease.Pharaoh Ant
A tiny pale-yellow to reddish-brown ant that nests in warm, hidden voids inside heated buildings, forms sprawling multi-queen colonies, and is both the hardest household ant to control and a documented contamination concern in hospitals.Powderpost Beetle
A small reddish-brown wood-boring beetle whose larvae feed on the starch in hardwood sapwood, leaving round pinhole exits and a fine, flour-like powder that gives the group its name.Red Flour Beetle
A tiny, shiny reddish-brown beetle that infests flour, cereal, and other dried, finely ground foods in pantries, mills, and warehouses, contaminating far more than it eats.Red Imported Fire Ant
An aggressive, stinging, reddish-brown ant from South America that builds dome-shaped soil mounds across the southern U.S. and swarms to sting when its nest is disturbed.Rice Weevil
A tiny reddish-brown snout beetle whose grubs develop hidden inside whole grain kernels, making it one of the most damaging pests of stored grain, flour, birdseed, and pantry staples worldwide.Sawtoothed Grain Beetle
A tiny, very flat brown beetle with saw-like teeth along the sides of its thorax that infests stored cereals, pasta, dried fruit, and other pantry foods in homes, groceries, and grain stores worldwide.Silverfish
A small, wingless, silver-gray insect with a teardrop shape and three tail-like bristles that lives in cool or damp indoor spaces and feeds on paper, starch, and other carbohydrate-rich materials.Smokybrown Cockroach
A large, uniformly dark mahogany-brown peridomestic cockroach of the warm southern U.S. that breeds outdoors in mulch, woodpiles, and tree holes and flies indoors, especially into attics, on warm humid evenings.Tawny Crazy Ant
A small, uniformly reddish-brown invasive ant that swarms in huge numbers across the Gulf Coast, moving in fast, erratic trails and nesting in soil, debris, and electrical equipment rather than in tidy mounds.Western Black Widow
A shiny black, web-bound spider of the western United States, the female marked underneath with a red hourglass; medically significant but timid, living low to the ground in dark, undisturbed clutter around buildings.Western Drywood Termite
A wood-nesting termite of the western U.S. that lives entirely inside dry, sound wood — framing, furniture, dead tree limbs — without any contact with soil, betraying itself mainly by piles of tiny six-sided fecal pellets.Wolf Spider
A large, hairy, ground-dwelling hunting spider that chases down prey on foot instead of spinning a web, sheltering under boards, stones, and siding and sometimes wandering indoors near ground level.Yellow Fever Mosquito
A small dark, day-biting container mosquito with lyre-shaped thorax markings that breeds in standing water around homes and is the primary vector of yellow fever, dengue, Zika, and chikungunya viruses.