Systematic revision of the genera Geckobiella Hirst, 1917 and Hirstiella Berlese, 1920 (Acari: Prostigmata: Pterygosomatidae) with description of a new genus for American species parasites on geckos formerly placed in Hirstiella Author Paredes-León, Ricardo Author Klompen, Hans Author Pérez, Tila M. text Zootaxa 2012 3510 1 40 journal article 10.5281/zenodo.282509 fa676e46-f615-4a54-91bf-d097ea18f64c 1175-5326 282509 Tequisistlana Hoffmann and Sánchez Tequisistlana Hoffmann and Sánchez, 1980 : 99 Type species: Tequisistlana oaxacensis Hoffmann and Sánchez, 1980 , by original designation. Diagnosis. Female. Idiosoma almost circular, oligotrichous; prodorsal shield present, rectangular (wider than long) with 3 pairs of setae ( vi , ve and sci ), vi anterior and internal to ve (both setal pairs not aligned vertically or horizontally); dorsal setae (except h1 and f2 ) pectinate and long (reaching the bases of the next setal row); dorsal setal pair h1 tuft-shaped very reduced (quarter of length of h2 ); dorsal setal pair f2 tuft-shaped and very reduced (tenth part of length of f1 ); genital region covered with folded fan-shaped cuticular structure; genital setae ( g1 ) thick and sparsely serrate and not located on lobes; setae ag1 long (although shorter than f1 ) and pectinate; setae ag2–3 short, thick and sparsely serrate (as setae g1 ); setae ps1–3 tuft shaped, subequal in length and very reduced (quarter of length of h2 ). Seta v’ on genua IV absent. Setal development. Setae ps1–3 present from larval instar on. Hosts. All instars parasitize lizards of the family Xantusiidae . Included species. Monotypic genus.