Hygrobatopsis, K. Viets, 1924

Smit, Harry, 2021, Water mites from West Africa (Acari: Hydrachnidia), Acarologia 61 (3), pp. 700-746 : 716

Hygrobatopsis (?) convexipalpis n. sp.

Zoobank: A728411D-45EA-479D-A935-EC4DB3846D2A

( Figure 9 A-D)

Material examined. Holotype female, stream Asukuma, Kakum NP, Ghana, 5°26.995′ N 1°25.071′ W, 131 m a.s.l., 12 Feb. 2013 ( RMNH) . Paratype: one female, same data as holotype ( RMNH).

Material for comparison. Hygrobatopsis levipalpis (K. Viets, 1924) . One female (photograph), stream Koptawelil, Kenya, Feb. 1925, leg. F. Bryk ( NHRS-GULI 000073414); one female (photograph), stream Koptawelil, Kenya, 29 Jun. 1925, leg. F. Bryk (NHRSGULI000073415).

Diagnosis. Dgl-1 not on sclerites, gonopore relatively short, P3 with a convex ventral margin.

Description. Female: Idiosoma dorsally 543 (583) long and 478 (486) wide, ventrally 599 (624) long. Dgl-1 not on sclerites ( Figure 9A ). Gnathosoma lightly fused with Cx-I. Suture lines of Cx-III/IV incomplete, Cxgl-4 near the latter suture line. Cx-IV posteromedially with a short projection ( Figure 9B ). Genital field 144 long and 148 wide, with three pairs of acetabula. Pregenital sclerite appearing large due secondary sclerotization lateral and anterior to the pregenital sclerite, but this sclerite itself small. Excretory pore near posterior idiosoma margin. Idiosoma posterolaterally with a pair of large glandularia tubercles. Length of P1–5: 23, 99, 146, 186, 68. P3 with a convex ventral margin ( Figure 9 C-D). Length of I-leg-4–6: 134, 155, 108. I-leg-5 without downturned seta. Length of IV-leg-4–6: 180, 210, 124. Legs without swimming setae.

Male: Unknown.

Figures

Figure 9 Hygrobatopsis(?) convexipalpis n.sp., holotype female. A – dorsum; B – venter; C – palp; D – palp. Scale bars: A-B = 100 µm, C-D = 50 µm.