The Mastigitae genus † Baltostigus in Upper Eocene Rovno amber (Coleoptera: Staphylinidae: Scydmaeninae) Author Jałoszyński, Paweł Author Perkovsky, Evgeny text Zootaxa 2019 2019-08-29 4661 3 594 600 journal article 25866 10.11646/zootaxa.4661.3.12 f6d47c34-f7d4-4ec3-b557-07d9c6ed1a78 1175-5326 3446307 EBA083A9-D19F-47F1-B290-8885CA8F7DD3 † Baltostigus cf. horribilis Jałoszyński ( Figs 11–17 ) Material studied. Late Eocene of Europe, Rovno amber: female; inclusion in a large, semi-lentiform piece of darkly colored amber 58 × 25 × 15 mm , collection number K-7896, collected in Klesov (Pugach quarry), Ukraine ( SIZK ); “ Baltostigus Rovno 2", sex unknown, inclusion in a large prismatic piece of light yellow amber with a half earthy turbulent, 38 × 23 × 10 mm , collected 10 km north of Voronki village , Vladimirets District , Rovno Region , Ukraine ( NCR ) . Remarks. The specimen K-7896 is poorly visible, embedded in dark amber, but it is clearly a female, judging from the valvifers sticking out of the tip of abdomen. The other beetle (" Baltostigus Rovno 2") is observable only in lateral view, and its sex remains unknown. These specimens are very similar to the holotype of Baltostigus horribilis (which is of unknown sex). They both differ from the latter in slightly larger bodies, slightly longer elytra in relation to the pronotum, slightly shorter antennae in relation to the body length, and in a slightly shorter scape in relation to the length of the head and in relation to the length of the pronotum. It cannot be excluded that the holotype of Baltostigus horribilis is a male, and the females from Rovno amber are females (certainly the specimen K-7896 is a female) of the same species. This problem will be possible to address properly when more specimens become available, especially specimens that can be unambiguously identified as males and females.