What's That Bug? does not endorse extermination

Large masses of tiny graphite colored bugs
October 1, 2009
These bugs have been present since early Spring. They appear to be coming out of the gravel around the house and hot tub when it rains. They are dark gray in color and are less than 1/16″ in length. We are concerned that they may infest our house.
We would appreciate your help in identifying them.
Don
Packwood, WA – S side of Mt Rainier

Springtails

Springtails

Dear Don,
We are so happy you sent excellent images of both the entire aggregation of Springtails, and a detailed closeup leads us to believe they are in the family Hypogastruridae.  Springtails are among the most common insects in the world.  Most species are very habitat specific, and there are some species that are found in homes, especially in showers, under sinks, and in damp basements.  Springtails are benign creatures that often feed on mold and fungus.  If they are present in the house, they may be symptomatic of another underlying problem, like mold growth.  We do not believe the species depicted in your photo will infest your home.

Springtails

Springtails

What's That Bug? does not endorse extermination

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