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 Mesotritia Forsslund, 1963 Mesotritia : Märkel 1964 , Aoki 1980a , Mahunka 1990 a, Niedbała 2008b Mesotritia ( Mesotritia ) Märkel, 1964 : Balogh and Balogh 1992 , Subías 2004 Mesotritia ( Entomotritia ) Märkel, 1964 : Aoki 1980a Mesotritia ( Peutritia ) Märkel, 1964 : Balogh and Balogh 1992 Type species: Mesotritia testacea Forsslund, 1963 . Diagnosis — Prodorsum without median crista, lateral carinae present; posterior median apodeme present; bothridial scales situated below bothridia; rostral setae arising medially from rostrum, lamellar and interlamellar setae arising laterally. Notogaster with 14 pairs of setae, terminal sinus or fissure on posterior part; vestigial setae f 1 anteriorly of setae h 1 ; one pair of lateral opisthonotal glands openings ( gla ) and 5 pairs of lyrifissures ia, im, ip , ips, ih present. Ventral region; mentum with setae h considerably longer than distance between them; palps 3-segmented, usually with setal formula: 2-2-8 and one solenidion; epimeral formula usually: 3-1-2-2; genitoaggenital and anoadanal scissures well developed; anogenital cleft absent; genital setae never situated anteriorly of kag tectum of genitoaggenital plates. Legs heterotridactylous; neotrichy on tarsi I and II ; famuli bifurcate; solenidia of tarsi II without coupled setae; genua IV without solenidia; seta d on tibiae IV long, not coupled with solenidion. Distribution — Semicosmopolitan.