Hygrobates (Hygrobates) niloticus Walter 1922

Hygrobates (Hygrobates) niloticus Walter, 1922 (Figure 7 A-C) New record. Ghana. 0/1/0, unnamed stream crossing road to Ankasa NP, 5°11.435′ N 2°39.429′ W, 20 m a.s.l., 27 Feb. 2011. Description. Female. Integument finely lineated, only visible at higher magnification. Idiosoma dorsally 591 long and 462 wide, ventrally 640 long. Cx-I fused medially. Anterior coxae tapering and extending far posteriorly, reaching almost posterior margin of Cx-IV. Posterior to anterior coxae a small area of secondary sclerotization. Suture line Cx-III/IV incomplete, Cxgl-4 located near this suture line. Posterior to Cx-IV an area of secondary sclerotization, not incorporating Vgl-1. Genital field 144 long and 259 wide, with three pairs of acetabula. Pregenital sclerite small, surrounded by a large area of secondary sclerotization. Length of P1–5: 28, 118, 76, 104, 40. P2 anteroventrally with several denticles, ventral margin of P3 with about five relatively large denticles. Length of I-leg-4–6: 118, 104, 74. First leg segments rather stocky, I-leg-5 anteriorly without stout setae. Distribution. Sudan (Walter 1922), Ghana (this study).
Published as part of Smit, Harry, 2021, Water mites from West Africa (Acari: Hydrachnidia), pp. 700-746 in Acarologia 61 (3) on pages 713-714, DOI: 10.24349/5d6U-DX5N, http://zenodo.org/record/7159546
{"references":["Walter C. 1922. Hydracarina. Zoologische Resultate der Reise von Dr. P. A. Chappuis an den oberen Nil. II. Hydracarina. Rev. Suisse Zool., 30: 63 - 86."]}