Water mites from French Guiana, with the description of 14 new species (Acari: Hydrachnidia) Author K, Harry Smit Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, the Netherlands. Author Pešić, Vladimir Author K Department of Biology, University of Montenegro, Cetinjski put b. b., 81000 Podgorica, Montenegro. Author K, Simon Clavier ONIKHA, Bureau d’études et de recherche Eau et Environnement, PK 9 Route Degrad Saramaca - text Acarologia 2022 2022-10-27 62 4 1119 1153 journal article 2107-7207 Hygrobates ( Hygrobatides ) dilatatus Smit & Pešić sp. nov. Zoobank: F8C2A2BE-90AE-4B30-98DD-73331F232C0B ( Figures 8A–D ) Material examined — Holotype female, Crique Aya , National Reserve La Trinité , French Guiana , 4.590557°N , 53.413572°W , 4 Nov. 2018 , leg. S. Clavier ( MNHN ). Figure 7 Hygrobates curtipes Smit & Pešić sp. nov. , holotype female. A ─ venter; B ─ palp; C ─I-leg-4-6. Scale bars: A = 100 µm, B-C = 50 µm. Diagnosis (Male unknown) — The three pairs of acetabula widely separated from each other, first pair at level of postgenital sclerite, posterior two pairs lying far posteriorly; Cxgl-4 not extending far anteriorly; P2 with a blunt anteroventral projection covered by minute denticles. Description — Female – Idiosoma without plates or platelets, dorsally 810 long and 786 wide, ventrally 846 long. Coxae in three groups, anterior coxae posteriorly pointed. Cxgl-4 near incomplete suture line of Cx-III/IV, posterior to Cx-IV an area of secondary sclerotization ( Figure 8A ). Genital field 198 long with three pairs of widely separated acetabula, first pair of acetabula at level of postgenital sclerite; pregenital sclerite 146 wide. Acetabula (partly) surrounded by a small fringe of secondary sclerotization ( Figure 8B ). Length of P1-5: 31, 136, 100, 198, 42. P2 anteroventrally with a blunt projected, its tip covered by minute denticles; P3 ventrally and medially with denticles; P4 slender, ventrally with two widely separated setae ( Figure 8C ). Length of I-leg-4-6: 182, 178, 116. I-leg-5 anteroventrally with two pointed setae, unequal in size ( Figure 8D ). Length of IV-leg-4-6: 243, 251, 210. Swimming setae absent. Excretory pore surrounded by a small fringe of secondary sclerotization. Male – Unknown. Etymology — Named after the widely separated acetabula. Discussion — Unlike all other Hygrobatides species, Cxgl-4 are not extending far anteriorly. Moreover, none of the known species have the acetabula so widely separated as in the new species and P2 with a blunt anteroventral projection.