Oxytelus (Tanycraerus) altaicus Kastcheev, 1999 – a little known rove beetle species from Kazakhstan (Coleoptera: Staphylinidae: Oxytelinae)

Diagnostic characters for the little known species Oxytelus (Tanycraerus) altaicus Kastcheev, 1999 are presented and illustrated. Oxytelus (T.) altaicus difers from the closely related O. (T.) laqueatus (Marsham, 1802) in the structure of the parameres and abdominal sternite VII. Te main character in the structure of the aedeagus of O. altaicus, which difer this species from O. laqueatus, is the form of the parameres, which is especially obvious seen in the lateral view. In O. laqueatus, depression between paired teeth on the posterior margin of sternite VII is rounded; in O. altaicus this depression forms obtuse angle. Illustrations of some morphological details of O. laqueatus are also presented: habitus, the aedeagus, the structure of the parameres and male abdominal sternite VII

Figs 1−3 in Omalium gildenkovi (Coleoptera: Staphylinidae: Omaliinae), a new species from the central part of European Russia

Figs 1−3. Species of the genus Omalium, habitus. 1–2 – O. gildenkovi sp. n.: 1 – male, holotype, 2 – female, paratype; 3 – O. exiguum, male (Smolensk Region, Russia). Scale bars 1 mm. Рис. 1−3. ВиÃы роÃа Omalium, габитус. 1–2 – O. gildenkovi sp. n.: 1 – самец, гоΛотип, 2 – самка, паратип; 3 – O. exiguum, самец (СмоΛенская обΛасть, Россия).Масштабные Λинейки 1 мм.Published as part of <i>Semionenkov, O.I. & Shavrin, A.V., 2022, Omalium gildenkovi (Coleoptera: Staphylinidae: Omaliinae), a new species from the central part of European Russia, pp. 3-8 in Caucasian Entomological Bulletin (Caucas. entomol. bull.) 18 (1)</i> on page 4, DOI: 10.23885/181433262022181-38, <a href="http://zenodo.org/record/10124545">http://zenodo.org/record/10124545</a&gt

Figs 10−16. Apical abdominal segments. 10−15 in Omalium gildenkovi (Coleoptera: Staphylinidae: Omaliinae), a new species from the central part of European Russia

Figs 10−16. Apical abdominal segments. 10−15 – Omalium gildenkovi; 16 – O. exiguum. 10 – male sternite VIII; 11 – male tergite VIII; 12 – female sternite VIII; 13 – female tergite VIII; 14 – male genital segment; 15−16 – female genital segment. Scale bars 0.1 mm. Рис. 10−16. Вершинные брюшные сегменты. 10−15 – Omalium gildenkovi; 16 – O. exiguum. 10 – стернит VIII самца; 11 –тергит VIII самца; 12 – стернит VIII самки; 13 – тергит VIII самки; 14 – генитаΛьный сегмент самца; 15−16 – генитаΛьный сегмент самки. Масштабные Λинейки 0.1 мм.Published as part of <i>Semionenkov, O.I. & Shavrin, A.V., 2022, Omalium gildenkovi (Coleoptera: Staphylinidae: Omaliinae), a new species from the central part of European Russia, pp. 3-8 in Caucasian Entomological Bulletin (Caucas. entomol. bull.) 18 (1)</i> on page 6, DOI: 10.23885/181433262022181-38, <a href="http://zenodo.org/record/10124545">http://zenodo.org/record/10124545</a&gt