Ptyctimous mites (Acari, Oribatida) of Tanzania Author Niedbała, Wojciech text Acarologia 2017 2017-11-14 57 4 957 1072 http://dx.doi.org/10.24349/acarologia/20174217 journal article 10.24349/acarologia/20174217 2107-7207 5402635 21351710-FE9E-4E20-A29D-C480D3BA56FD Microtritia Märkel, 1964 Microtritia : Aoki 1980b , Balogh and Mahunka 1983 , Mahunka 1990 a, Subías 2004 Type species — Phthiracarus minimus Berlese, 1904 Diagnosis — Cuticular surface of body finely porose. Prodorsum without median crista, with one pair of lateral carinae; bothridial scales situated above the bothridia; posterior median apodeme present; lamellar and rostral setae in median (paraxial) position; interlamellar setae situated near the bothridia. Notogaster with 14 pairs of setae; setae of row ps situated almost in one line; terminal sinus or terminal fissure at posterior end present; one pair of openings of lateral opisthonotal glands ( gla ) and 5 pairs of lyrifissures: ia, im, ip, ips, ih present. Ventral region; palps three-segmented with formula: (1-2)-1-(7-8)(1); genitoaggenital and anoadanal plates completely fused; anogenital cleft present; one median interlocking triangle present. Legs: each trochanter with one seta; genua IV without solenidia; setae d on tibiae IV coupled with solenidion; solenidia ř 1 and ř 2 without coupled setae; famuli located far from solenidia; all tarsi monodactylous. Distribution — Semicosmopolitan.