| abstract | The post-larval Eutrombidium (Acarina: Trombidioidea) of North America are reviewed and described. Eutrombidium locustarum (Walsh) is accepted in the sense of BERLESE (1912), and three other species, all new, E. walshi, E. lebaroni and E. rileyi are defined and described. A key is given to the post-larval instars of the Eutrombidiinae (family Microtrombidiidae). |