Anthobium Leach 1819

Key to Western Palaearctic species of Anthobium 1 Body elongate. Pronotum relatively narrow, about one and a half as broad as long. Elytra distinctly longer than broad. Median lobe and apical portions of parameres significantly broadened (Fig. 23 in Shavrin (2022a)). Habitus as in Fig. 1 in Shavrin (2022a). Body reddish-brown to dark brown. Body large: 4.30–5.50 mm. Middle Europe....................... algidum - Body wide, somewhat shortened. Pronotum transverse, about twice as broad as long or slightly narrower. Median lobe and apical portions of parameres narrower. Body smaller......................................................... 2 2 Forebody less elevated, somewhat flattened. Middle potion of pronotum evenly elevated, sometimes with indistinct longitudinal impression. Aedeagus as in Fig. 62 in Shavrin (2022a). Habitus as in Fig. 2 in Shavrin (2022a). Body brown to reddish-brown. Body length: 2.70–4.50 mm. Transpalaearctic species.................................................... tectum - Forebody distinctly elevated, convex. Middle portion strongly elevated, usually with distinct longitudinal and/or mediobasal impressions......................................................................................... 3 3 Lateral edges of pronotum with distinct crenulation, sometimes forming indistinct mediolateral angles................. 4 - Lateral edges of pronotum without crenulation.............................................................. 5 4 Pronotum about twice as broad as long, with anterior angles relatively strongly protruded anteriad, from widest middle slightly more narrowed anteriad than posteriad, with slightly concave latero-apical margin and lateral edges, sometimes forming indistinct mediolateral angles; median impressions usually indistinct. Aedeagus as in Figs. 29–30. Habitus as in Fig. 24. Body paler, yellow-brown to brown. Body length: 3.05–4.10 mm. South-eastern Europe, Turkey, Caucasus......... ganglbaueri - Pronotum smaller, distinctly less transverse, with anterior angles slightly protruded anteriad, from widest middle relatively evenly narrowed both anteriad and posteriad, without concave latero-apical margin and mediolateral angles; median impressions deep. Aedeagus as in Figs. 38–43 in Shavrin & Smetana (2018). Habitus as in Fig. 1 in Shavrin & Smetana (2018). Body darker, brown to black. Body length: 2.10–3.40 mm. Palaearctic species....................................... fusculum 5 Anterior angles of pronotum strongly protruded anteriad...................................................... 6 - Anterior angles of pronotum slightly protruded anteriad...................................................... 7 6 Laterobasal margins of pronotum strongly narrowed posteriad; median pronotal impressions deep. Apical part of median lobe moderately narrow; parameres significantly longer than apex of median lobe (Figs 10–11). Habitus as in Figs 4–5. Body brown to reddish brown. Body length: 3.20–4.07 mm. Europe, Turkey, Caucasus........................... melanocephalum - Laterobasal margins of pronotum slightly narrowed posteriad; median pronotal impressions shallow.Apical part of median lobe wide; parameres indistinctly exceeding apex of median lobe (Figs 14, 16). Habitus as in Fig. 6. Body reddish-brown. Body length: 3.55–4.10 mm. North Africa.............................................................. longicorne 7 Body yellowish or yellow-brown. Aedeagus as in Fig. 34h in Zanetti (2012). Body length: 3.00– 3.50 mm. Europe, Caucasus.............................................................................................. unicolor - Body darker......................................................................................... 8 8 Pronotum without or with indistinct longitudinal impressions. Apical part of median lobe wide....................... 9 - Pronotum with distinct longitudinal impression. Apical part of median lobe moderately narrow...................... 10 9 Punctation of pronotum and elytra moderately fine. Parameres slightly exceeding apex of median lobe, with distinctly broadened preapical parts (Fig. 27). Habitus as in Fig. 22. Body length: 2.60–3.70 mm. Caucasus........................... tenue - Punctation of pronotum and elytra large and deep. Parameres significantly longer than apex of median lobe, with narrow apical parts (Fig. 25). Habitus as in Fig. 20. Body length: 3.50–4.90 mm. Portugal, Spain ......................... moczarskii 10 Apical angles of pronotum not or slightly protruded anteriad. Aedeagus elongate, with relatively narrow apical part of median lobe (Figs. 7–9 and Figs 2, 4–6 in Shavrin (2020)). Habitus as in Figs 1–3 and Fig. 1 in Shavrin (2020). Body length: 2.40–3.60 mm. Palaearctic species...................................................................... atrocephalum - Apical angles of pronotum distinctly protruded anteriad. Aedeagus short, with slightly broadened apical part of median lobe (Fig. 17). Habitus as in Fig. 21. Body length: 3.20–4.15 mm. Syria, Lebanon, Turkey ....................... metallicum