Ramussia lovtsovae Kurbatov 2022, sp.n.

• Main Author: Kurbatov, S. A.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2022
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Coleoptera; Staphylinidae; Ramussia; Ramussia lovtsovae; Sakhalin
• Online Access: https://doi.org/10.5281/zenodo.10978649; http://treatment.plazi.org/id/365787993674FFE9FEB7FBB3FB2E5B39

Ramussia lovtsovae Kurbatov, sp.n. Figs 1, 3–4, 6, 9, 12–13, 15–16, 23. MATERIAL. Holotype ♂: SW Sakhalin, 14 km East of Nevelsk, 46°44´33.8´´N 142°03´04.5´´E, rotten Picea , 22.07.2021, S. Kurbatov (ZIN). Paratypes: 6♂ with holotype (1 specimen is dismembered) ((MHNG, ZIN, ZMUM, PCSK). DESCRIPTION. Body 1.25–1.35 mm long, light brown, in fairly fine, dense decumbent pubescence. Head 0.19–0.20 mm long, 0.26–0.27 mm wide. Vertexal foveae quite large, distance between them slightly greater than distance from edge of fovea to inner edge of eye at this level. Frontal sulcus rather V-shaped. Anterior edge of the front rounded. Eyes large, convex, their diameter in lateral view slightly longer than length of temples. Temples widely rounded. Head in anterior half with fine punctures except smooth antennal tubercles weakly protruding, rest of the head without pronounced punctation. Antennae (Fig. 9) about the same as the previous species, but antennomeres 9 and 10 can be more than twice or less than twice as wide as length. Pronotum more or less as long as wide (0.29/ 0.30 mm), widest at its anterior third. Median longitudinal sulcus always present, not connected to the median antebasal fovea. No sulcus present anteriorly of lateral fovea. Punctation very indistinct. Elytra (0.37–0.40/ 0.43–0.44 mm) with two basal foveae; discal stria not reaching elytral mid-length. Male secondary sexual characters on head and legs not expressed. Sternite 6 (VIII) emarginate at apex, notch covered by penial plate (IX sternite) 0.115 –0.120 mm long (Fig. 23). Aedeagus (Figs 15–16) 0.200 – 0.215 mm long. ETYMOLOGY. This species is named in honor of my collegue Yulia Lovtsova, specialist on Psychidae, who provided valuable assistance to the author during the field work on Sakhalin. COMMENTS. The new species (as well as the following R. svetlanae sp.n. ) differs first of all from R. parabile and R. captiosum sp.n. in the presence of only two basal elytral foveae; in addition, R. parabile lacks the median longitudinal sulcus, which present ...