Diversity of edaphic Gamasina mites (Acari: Mesostigmata) in different ecosystems of the Caatinga biome in northeast Brazil - Barros, Ávyla Régia de Albuquerque; Azevedo, Emiliano Brandão de; Silva, Edmilson Santos; Castilho, Raphael de Campos; Moraes, Gilberto José de (Systematic & Applied Acarology, 2021)