Tachys

Tachys is a genus of beetles of the ground beetle family, Carabidae, six species of which live in Britain. Most are brown or have a dark coloured body, live beside water, and are among the smallest of the ground beetles measuring just two to three millimetres in length.
Found on http://www.probertencyclopaedia.com/browse/BT.HTM

Tachys

Tachys is a genus of beetles in the family Carabidae, containing the following species: ...
Found on http://en.wikipedia.org/wiki/Tachys
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