Gastrobothrus pilosus is a species of beetle of the family Staphylinidae. It is found in New Zealand (North Island).
Description Adults reach a length of about . The body is brown, with the head and pronotum darker.
Life history They have been collected in leaf litter, as well as liverwort and moss from tree bases and on the ground.
Etymology The species name is derived from Latin pilosus (meaning hairy) and refers to the head coarsely covered with long yellow setae.
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