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 Steganacarus ( Steganacarus ) wallworki ( Mahunka, 1984 ) ( Fig. 46 A-E) Hoplophthiracarus wallworki Mahunka, 1984 . Steganacarus ( Steganacarus ) wallworki : Niedbała 2001 . Diagnosis — Measurements of holotype : prodorsum: length 288, width 196, height 126; notogaster: length 513, width 355, height 368. Species of medium size; colour brown; surface of body smooth, only anterior part of prodorsum and genital plate as well posterior part of notogaster covered with concavities. Prodorsum with long median and lateral fields; lateral carinae absent; posterior furrows distinct; sensilli long, smooth, narrow, tapering; interlamellar setae long, thick, erect, covered with small spines; lamellar and rostral setae spiniform, procumbent, rough, ss > in > ro > le > ex . Notogaster with setae, strong, thick, but not long ( c 1 /c 1 - d 1 =0,79) densely covered with small spines; setae c 1 and c 2 near the anterior margin than setae c 3 , setae c 2 longer than c 1 and c 3 , setae ps 4 the shortest; vestigial setae f 1 posteriorly of h 1 setae; only 2 pairs of lyrifissures ia and im present. Ventral region ; setae h of mentum longer than distance between them; formula of genital setae: 7(4+3): 2; formula of anoadanal setae is 4:1, setae ad 1 the longest, setae ad 3 the smallest. Leg setation complete; setae d on femora I situated on the distal end . Locality in Tanzania : Dodoma Region : Mahunka 1984 , Niedbała 2001 . Distribution — Afrotropical species known only from Tanzania , probably endemic.