of Holorusia can reach 11 cm. The antennae have up to 19 segments. It is also characterized by a 'V'-shaped suture or groove on the back of the thorax (mesonotum) and by its wing venation. The rostrum is long and in some species as long as the head and thorax together.

Larvae occur in various habitats including marshes, springs, decaying wood, moist soil,