Redescription of Tarsonemus minimax and definition of its species-group in the genus Tarsonemus (Acari: Tarsonemidae) with descriptions of two new species
The Tarsonemus minimax species-group is established for bark beetle commensals of the genus Tarsonemus Canestrini and Fanzago, 1876. T. minimax Vitzthum 1926 is redescribed, and two new species, T. terebrans and T. typographi n. spp., are described and illustrated. A diagnostic key to the species is supplied. The systematic status of the species-group is discussed. Biogeography and associations with insect hosts and fungi are reviewed.