Health Vector Concern / role
16 entr(ies)
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.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.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-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.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.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.House Mouse
A small, gray-brown commensal rodent that lives in close association with people, nesting in walls, appliances, and stored goods, and known for droppings, gnaw marks, and a musky odor.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.Norway Rat
A large, stocky burrowing rodent that nests at ground level in and around buildings, contaminates food, gnaws structures, and can carry diseases that affect people.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."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.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.Roof Rat
A slender, climbing rat that nests above ground in attics, trees, and dense vegetation, travels overhead along wires and rooflines, and is especially fond of fruit and citrus.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.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 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.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.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-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.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.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.House Mouse
A small, gray-brown commensal rodent that lives in close association with people, nesting in walls, appliances, and stored goods, and known for droppings, gnaw marks, and a musky odor.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.Norway Rat
A large, stocky burrowing rodent that nests at ground level in and around buildings, contaminates food, gnaws structures, and can carry diseases that affect people.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."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.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.Roof Rat
A slender, climbing rat that nests above ground in attics, trees, and dense vegetation, travels overhead along wires and rooflines, and is especially fond of fruit and citrus.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.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.