Revision of the genus Adactylidium cross (Acari : Heterostigmata : Acarophenacidae), mites associated with thrips (Thysanoptera)

The genus Adactylidium is revised; four nominal species (A. beeri Cross, A. nicolae Krczal, A. costarricensis Goldarazena, Jordana, and Zhang, and A. moundi Goldarazena, Jordana, and Zhang) and ten new species (A. brasiliensi s Goldarazena and Ochoa, A. crespii Goldarazena and OConnor, A. ficorum Gol darazena and Ochoa, A. flechtmanni Goldarazena and Ochoa, A. irregularis Go ldarazena and Ochoa, A. lindquisti Jordana and Goldarazena, A. mooniensis G oldarazena and Jordana, A. morazae Goldarazena and Ochoa, A. rumanicus Jord ana and Goldarazena, and A. smileyi Goldarazena and Ochoa) are described an d illustrated. The species are associated with numerous species of thrips f rom the Palearctic, Nearctic, Neotropical, and Australian regions. Phylogen etic analysis resulted in a single cladogram resolved at the species level. A list of thrips hosts and a key to female Adactylidium are provided. Thes e mites have potential importance in the biological control of thrips pests in agricultural systems.