Lesteva

Shavrin, Alexey V., Shilenkov, Viktor G. & Anistschenko, Alexander V., 2007, Two new species and additional records of Lesteva Latreille, 1797 from the mountains of South Siberia (Coleoptera: Staphylinidae: Omaliinae: Anthophagini), Zootaxa 1427, pp. 37-47 : 45-46

Key to the Lesteva species known from South Siberia

1 Appendages slightly elongate, shoulders not reduced; body smaller (2.4–4.0 mm) ................................... 2

- Appendages strongly elongate, shoulders reduced; body larger (4.1–5.6 mm)........................................... 3

2 Pronotum strongly transverse, with impressions; body larger (4.0 mm), dark brown; antennae reddish brown; habitus and aedeagus as in Shavrin (2000, Figs. 8–9 , 19); Khamar-Daban mountain range .......... ......................................................................................................................................... L. czerskyi Shavrin

- Pronotum slightly transverse, without impressions; body smaller (2.4–3.0 mm), pale brown; elytra reddish brown to brown, sometimes with light yellow spots on shoulders; antennae yellow; habitus and aedeagus as in Shavrin (2000, Figs. 10–11 , 20); Irkutsk and Chita Territories, Republic of Buryatia ........................ ............................................................................................................................ L. cordicollis Motschulsky

3 Body and appendages dark brown; elytra long (LE:WE=89:31), with fairly long grey setae; habitus as in Fig. 1 ; aedeagus ( Figs. 11–12 ) small, median lobe with short triangular apex; Barguzin mountain range .. ...................................................................................................................................... L. barguzinica sp.n.

- Body muddy-brown or yellowish-brown, appendages paler; elytra shorter, with shorter, denser goldish setae; aedeagus larger .................................................................................................................................. 4

4 Elytra short (LE:WE=90:39), strongly widened to apex; habitus as in Fig. 4 ; first metatarsal segment visibly shorter than last; ocelli poorly developed; median lobe of aedeagus ( Figs. 13– 14 ) in lateral view with beak-like bent apex; East Sayan ............................................................................... L. brathinoides Zerche

- Elytra longer (LE:WE=(92–97):(28–34)), less widened to apex; first metatarsal segment shorter than last; ocelli developed or reduced; median lobe of aedeagus with pointed apex ................................................. 5

5 Ocelli well developed; habitus as in Fig. 3 ; aedeagus as in Figs. 15–16 ; West Sayan. L. sajanensis Zerche

- Ocelli strongly reduced, poorly visible at high magnification; habitus as in Fig. 1 ; aedeagus as in Figs. 8– 9 ; Khamar-Daban mountain range................................................................................. L. dabanensis sp.n.

Figures

FIGURE 10. Female genitalia of Lesteva dabanensis sp. n., ventral view. Scale bar 0.3 mm.

FIGURES 11 – 12. Aedeagus of Lesteva barguzinica sp. n. 11 — ventral view; 12 — lateral view. Scale bar 0.3 mm.

FIGURES 8 – 9. Aedeagus of Lesteva dabanensis sp. n. 8 — ventral view; 9 — lateral view. Scale bar 0.3 mm.

FIGURES 1 – 4. Habitus of Lesteva. 1 — L. dabanensis sp. n.; 2 — L. barguzinica sp. n.; 3 — L. sajanensis Zerche; 4 — L. brathinoides Zerche. Scale bar 1.3 mm.

FIGURE 13 – 14. Aedeagus of Lesteva brathinoides Zerche. 13 — ventral view, 14 — lateral view. Scale bar 0.3 mm.

FIGURES 15 – 16. Aedeagus of Lesteva sajanensis Zerche. 15 — ventral view; 16 — lateral view. Scale bar 0.3 mm.