Occasional Invaders

Masked Hunter

Part of the Assassin Bug family, masked hunter adults are approximately 10-12mm in length.  They are very dark brown to black in color and have a narrow head with a distinct beak protruding from below.  Their front legs are slightly thickened in comparison to their other legs, which is an adaptation for grasping and holding […]

Crickets

Colorado is home to more than 10 species of crickets.  Occasionally, crickets wander into homes and although they do not reproduce inside of homes, during times of high activity their chirping can be a nuisance to homeowners.  Only the male crickets “sing”, attempting to attract attention of the females and during their courtship.  They will […]

Bird Mites

Bird mites are miniscule, flattened parasites that feed on the blood of birds.  The short lifecycle of bird mites, which contains five stages, enables bird mite populations to rapidly increase, sometimes into the tens of thousands in a single nest.  The only life stage of bird mite that is visible to the naked eye is […]

Bat Bugs

Until recent years, when bed bugs have exploded in population and spread worldwide, bat bugs were the most common of the 5 closely related species of bloodsucking bugs that are found in Colorado.  Bats and occasionally birds accessing attic and wall void areas for the purpose of raising their young may be infested with bat […]

Swallow Bugs

Swallow bugs are parasites of cliff swallows and occasionally barn swallows.  Bed bugs swallow bugs and bat bugs are among 5 species of a family of bloodsucking insects in Colorado.  Unlike bed bugs which are commonly active year-round within homes, swallow bugs are typically dormant during periods when swallows are not present for nesting purposes.  […]

Larder Beetles

A beetle of the Dermestidae family, larder beetle adults range in size from ¼ to 3/8 of an inch in length and have distinctly clubbed antennae.  Their bodies are oval shaped and elongated.  Primary coloring is dark brown to black, with the top portion of the wing covers having a yellowish band that contains six […]

Carpet Beetles

Several species of carpet beetles including black carpet beetles, varied carpet beetles and furniture carpet beetles are commonly found in homes in Colorado as well as in wild populations.  Although minor occurrences of these beetles are not usually of concern, experiencing a severe infestation may require the assistance of a pest control professional.  Carpet beetles […]

Fleas

Roughly 80 species of fleas can be found living in Colorado, which is among the largest number found in any state; however, flea infestations around the home and on pets are not nearly as common as in other areas of the United   States.  Colorado’s typically dry climate is not favorable for the immature stages […]

Silverfish and Firebrats

Look-alike household pests, silverfish and firebrats can at times be difficult to tell apart.  There are subtle differences in appearance as well as the habitats in which they tend towards. Silverfish are a shiny, silver or pearl gray in color and ½ to ¾ of an inch in length.  They tend towards warm humid areas […]

Duff Millipedes – No, they are not tiny caterpillars or larvae

We receive countless calls every year about tiny caterpillar or worm like insects crawling along walls and window sills inside of homes.  Due to their minuscule size of only about 1 mm as an adult, duff millipedes can be difficult to identify.  Often mistaken for the much larger larval stage of dermestid beetles (carpet beetles), […]