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Common Denver Pests

Close-up photo of a female black widow spider, with a shiny black body and a distinctive red hourglass marking on its underside.

Black Widow Spider

Black widows are a group of highly venomous spiders found throughout the world.

Close-up photo of a brown field mouse with short ears and tail, sitting in dirt.

Field Mice

Field Mice are active year-round, although they are most active during the spring and fall when temperatures are mild.

Close-up photo of a funnel weaver spider, a brown or gray spider with a distinctive pattern on its elongated abdomen, sitting at the entrance of its funnel-shaped web.

Funnel Weaver Spiders

These spiders get their name from the funnel-shaped webs they create to catch prey.

Close-up photo of a German cockroach, a common household pest known for its brown color, long antennae, and flat, oval-shaped body.

German Cockroaches

German cockroaches (Blattella germanica) are one of the most common species of cockroach found in homes and buildings worldwide

Close-up photo of a gray house fly with black stripes on its thorax and large compound eyes, sitting on a surface.

House Fly

House flies are one of the most common and widely distributed insects in the world.

Close-up photo of a female mosquito, a common flying insect known for its thin, long legs, and needle-like mouthpart used to feed on blood.


During the summer months, mosquitoes are simply accepted by most residents as an unfortunate part of warmer weather.

Close-up photo of a paper wasp, a beneficial insect known for its slender body, distinctive markings, and ability to build nests from paper-like materials.

Paper Wasps

Paper wasps are a type of social wasp found in North America.

Close-up photo of a woodlouse hunter spider, a dark brown or reddish-brown spider with a round cephalothorax and flattened abdomen, sitting on a leaf.

Woodlouse Hunter Spider

These spiders are typically dark brown or reddish-brown in color, with a round cephalothorax and a flattened abdomen.

Close-up photo of a yellow jacket, a type of wasp known for its black and yellow striped body, sharp stinger, and aggressive behavior.

Yellow Jackets

Yellow jackets are considered to be more aggressive than many other stinging insect species.

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