New Mochlozetidae (Acari, Oribatida) from the Merida State, Western Venezuela Author ErmilovK, Sergey G. Tyumen State University, Institute of Environmental and Agricultural Biology (X-BIO), Tyumen, Russia. text Acarologia 2024 2024-09-10 64 3 976 988 https://doi.org/10.24349/00w4-a8ja journal article 10.24349/00w4-a8ja 2107-7207 14670258 Uracrobates ( Uracrobates ) paramasneri n. sp. Zoobank: 24D88AE8-C0F5-4B16-A5DC-210E345D57F8 ( Figures 3 , 4 ) Material examined — Holotype (female) and four paratypes ( two females ): Western Venezuela , Merida State , 2300 m a.s.l. , 10 km E Tabay , sweeping in cloud forest, 28.IV.1981 (L. Masner and Marsh). Type deposition — The holotype is deposited in the collection of the Canadian National Collection, Ottawa, Canada ; four paratypes are in the collection of the Tyumen State University Museum of Zoology, Tyumen , Russia . All specimens are preserved in 70% solution of ethanol with a drop of glycerol. Diagnosis — Body length: 930–1020. Body without foveolae. Rostrum pointed. Lamellar cusp with strong lateral tooth. Rostral, lamellar and interlamellar setae long, setiform, barbed; ro shortest, in longest; bothridial seta medium-sized, clavate, barbed. Notogastral porose areas Aa , A2 and A3 strongly elongate oval (nearly band-like), A1 rounded. Epimeral, genital and aggenital setae setiform, thin, slightly barbed; anal and adanal setae short, setiform, thin, roughened. Leg dorsal porose area on tarsi I, II present. Description of adult — Measurements – Body length: 930 ( holotype ), 945–1020 (female paratypes ); notogaster width (level of pteromorphs): 720 ( holotype ), 720–765 (female paratypes ); ventral plate width: 615 ( holotype ), 630–705 (female paratypes ). Integument – Body color brown. Surface with dense microgranules (visible under high magnification, 10 × 100); pedotectum I partially striate; lateral side of body partially with dense microgranulate cerotegument. Prodorsum ( Figs 3a, 3c , 4a ) – Rostrum pointed. Lamella (including cusp) about 1/2 length of prodorsum, with long cusp having strong lateral tooth; translamella well-developed, indistinctly convex medially; tutorium ridge-like, with small tooth distally. Sublamellar porose area nearly rounded (15–17). Rostral (131–139), lamellar (180–187) and interlamellar (236– 240) setae setiform, barbed; bothridial seta (79–82) clavate, barbed, stalk and head similar in length or stalk slightly longer; exobothridial seta (60–67) setiform, thin, slightly barbed. Dorsosejugal porose area diffuse, located posterolateral to interlamellar seta. Figure 3 Uracrobates ( Uracrobates ) paramasneri n. sp. , adult (gnathosoma and legs omitted): a – dorsal view; b – ventral view; c – right lateral view; d – posterior view. Scale bar 200 μm. Notogaster ( Figs 3a, 3c, 3d ) – Dorsosejugal suture interrupted medially. Posterior margin distinctly narrowed in dorsal and ventral aspects. Pteromorph broadly rounded laterally. Four pairs of porose areas; A1 rounded (26–37), others strongly elongate oval, nearly band-like ( Aa : 161–176 × 7–19; A2 , A3 : 90–146 × 7–19). All notogastral setae represented by alveoli. Opisthonotal gland opening and all lyrifissures (except ia ) distinct. Figure 4 Uracrobates ( Uracrobates ) paramasneri n. sp. , adult: a – anterior part of prodorsum, anterior view; b – subcapitulum, dissected, ventral view; c – palp, right, antiaxial view; d – chelicera, right, antiaxial view; e – leg I, right, an Gnathosoma ( Figs 4b–4d ) – Subcapitulum size: 206–229 × 187–206; subcapitular setae ( a : 37–41; m : 64–71; h : 56–60) and adoral (19) setae setiform, barbed. Palp length: 169–180; setation: 0–2–1–3–9(+ω); postpalpal seta (7) spiniform, smooth. Chelicera length: 225–236; setae ( cha : 71–75; chb : 56–60) setiform, barbed. Epimeral and lateral podosomal regions ( Figs 3b, 3c ) – Epimeral setal formula: 3–1–3–3; all setae ( 1a , 2a , 3a , 4c : 34–37; 1c , 4a , 4b : 45–49; 1b , 3b , 3c : 67–71) setiform, thin, slightly barbed. Humeral porose areas Am and Ah elongate oval, poorly observable. Custodium long, thorn-like. Discidium triangular. Circumpedal carina long, distally fused to custodium. Anogenital region ( Figs 3b–3d ) – Anogenital setal formula: 6–1–2–3; genital and aggenital setae (34–37) setiform, thin, slightly barbed; anal and adanal setae (19) setiform, thin, roughened. Adanal lyrifissure located close and slightly oblique to anterior half of anal plate. Marginal porose area complete, band-like. Legs ( Figs 4e–4h ) – Median claw distinctly thicker than lateral ones, all slightly barbed dorsally; each lateral claw with small tooth ventrodistally. Dorsoparaxial porose area on femora I–IV, trochanters III, IV, ventrodistal porose area on tibia I–IV, proximoventral porose area on tarsi I–IV, and dorsal porose area on tarsi I, II well visible. Formulas of leg setation and solenidia: I (1–5–3–4–20) [1–2–2], II (1–5–3–4–15) [1–1–2], III (2–3–1–3–15) [1–1–0], IV (1–2–2–3–12) [0–1–0]; homology of setae and solenidia indicated in Table 1 . Remarks — The new species differs from all species of the genus in the presence of the strongly elongate oval (nearly band-like) notogastral porose area Aa (versus Aa rounded/oval). Distinctive characters between species within of the genus Uracrobates can be found in the identification key below. Etymology — The species name paramasneri refers to the similarity of the new species and U. ( U. ) masneri Ermilov, 2019 .