Harvestmen (Arachnida: Opiliones) in Eocene Rovno amber (Ukraine) Author Mitov, Plamen G. Author Perkovsky, Evgeny E. Author Dunlop, Jason A. 0000-0002-0179-6640 jason.dunlop@mfn.berlin text Zootaxa 2021 2021-06-10 4984 1 43 72 journal article 4939 10.11646/zootaxa.4984.1.6 723d2e5b-aa7b-4d6f-84ad-bc45531fa175 1175-5326 4928494 5F2D2119-40F9-4DCE-B4AE-CDE87E44C0EA Sabacon claviger ( Menge, 1854 ) Figs 18–21 Material examined. UKRAINE : SIZK K-7898, from Rovno amber, Rovno Oblast (Region), Sarny District , Klesov , Pugach quarry; late Eocene. Syninclusions: stellate hairs/trichomes; Isopoda (Oniscoidea) . Description. SIZK K-7898 ( Figs 18–19 ) has a deformed body (L: 1.5), prosoma width: 1.0. Carapace smooth, with only a few setae. Opisthosomal dorsum ornamented by regular rows of black thorns ( Fig. 19 ). Venter: surface of all coxae, genital operculum and sternites with a black spine-like setae; ocular tubercle: length 0.25, and width 0.375. Appendage article lengths: chelicerae: basal segment: 0.25, distal segment: 0.67, movable digit: 0.3; pedipalps: Fe: 0.62, Pa: 0.57, Ti: 0.92, Ta: 0.37; Leg I: Fe: 1.0, Pa: 0.5, Ti: 1.12, Mt: 1.45, Ta: 1.55; Leg II: Fe: 1.7, Pa: 0.62, Ti: 1.97, Mt: 2.32, Ta: 3.2; Leg III: Fe: 1.0, Pa: 0.42, Ti: 1.0, Mt: 1.62; Leg IV: Fe: 0.92, Pa: 0.45; part of the segments could not be measured correctly. Pedipalps inflated ( Figs 20–21 ), trochanter, femur and patella with scattered spine-like setae; tibia and tarsus throughout with dense brush-like setae—probably plumose glandular as in modern species, see Wolff et al. (2016) —ventro-distally, tibia with a long seta ( Fig. 20 : arrow). All leg articles with black, scattered spine-like setae; patellae, tibiae, metatarsi and tarsi with short setae; tarsi ending with a single claw. Remarks. The Eocene localities fit into the present range of Sabacon , namely SW Europe, Siberia, Russia (Primorye Province), the Himalayas, India , China , Japan , Korea and North America (see Staręga 2002 ; Martens 2015 ). It is noteworthy that the shape of the palpal tibia and tarsus in Sabacon claviger ( Figs 20–21 ) is closest to that of males of European members of the genus (i.e., Sabacon viscayanum ramblaianum Martens and Sabacon altomontanum Martens ; e.g., Martens 1983 : figs 32, 48).