title: Two new species of Rykellus (Acari: Mesostigmata: Ologamasidae) from Brazil and a key to the world species of the genus.
abstract: Rykellus anibali n. sp. and Rykellus mineiroi n. sp. are described from adult females and males collected from litter and soil in the state of São Paulo, Brazil. A key for the identification of females of the eight recognisable world species of Rykellus is provided.
authors.affiliation: Departamento de Fitossanidade, FCAV - UNESP Jaboticabal, 14884-900 Jaboticabal, São Paulo, Brazil.; Email: jandir_jc@hotmail.com.
authors.forename: Jandir C
authors.initials: JC
authors.lastname: Santos
authors.affiliation: Departamento de Fitossanidade, FCAV - UNESP Jaboticabal, 14884-900 Jaboticabal, São Paulo, Brazil.; Email: rcastilho@outlook.com.
authors.forename: Raphael C
authors.initials: RC
authors.lastname: Castilho
authors.affiliation: Laboratório de Entomologia e Acarologia, Universidade Federal de Alagoas, 57309-005 Arapiraca, Alagoas, Brazil.; Email: silva_es@yahoo.com.br.
authors.forename: Edmilson S
authors.initials: ES
authors.lastname: Silva
authors.affiliation: CNPq Researcher, Departamento de Entomologia e Acarologia, ESALQ-Universidade de São Paulo, 13418-900 Piracicaba, São Paulo, Brazil.; Email: moraesg@usp.br.
authors.forename: Gilberto J
authors.initials: GJ
authors.lastname: De Moraes
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D001938:Brazil; D005260:Female; D008297:Male; D008925:Mites / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D009929:Organ Size