Lesteva, Latreille, 1797

Shavrin, Alexey V. & Zanetti, Adriano, 2021, Review of the genus Lesteva Latreille, 1797 (Coleoptera: Staphylinidae: Omaliinae Anthophagini) of the Iberian Peninsula, Zootaxa 4966 (4), pp. 401-427 : 424

Key to species of Lesteva of Portugal and Spain

1 Lateral sides of pronotum with deep impression. Forebody with very coarse punctation. Parameres wide (Fig. 88g in Zanetti (1987)). Body yellow-brown to brown. Body length: 3.20–4.00 mm.................................. L. sicula heeri

- Lateral sides of pronotum without impression. Forebody with fine or moderately coarse punctation. Parameres narrow. Body usually darker....................................................................................... 2

2 Antennomeres 6–10 moderately short and wide, antennomere 10 slightly longer than broad.......................... 3

- Antennomeres 6–10 long and slender, antennomere 10 about or more than twice as long as broad..................... 6

3 Apical margins of elytra straight. Apical segment of metatarsus longer than basal tarsomere. Median lobe with longitudinal ridge (Fig. 88p in Zanetti (1987)). Body length: 3.30–4.70 mm ......................... L. longoelytrata longoelytrata

- Apical margins of elytra widely rounded.Apical segment of metatarsus about as long as or shorter than basal tarsomere. Median lobe without longitudinal keel........................................................................... 4

4 Median lobe narrow, parameres moderately short ( Figs. 32, 34, 36 ). Body brown. Body length: 4.10–5.05 mm. Habitus as in Figs. 29–30.................................................................................. L . osellai

- Median lobe different, parameres long. Body brown to reddish-brown........................................... 5

5 Pronotum wider, sharply narrowed posteriad. Apical portion of median lobe narrow, parameres very long, significantly exceeding apex of median lobe ( Fig. 18 ). Body smaller: 3.20–4.00 mm. Habitus as in Fig. 11................ L . lusitana

- Pronotum narrower, gradually narrowed posteriad.Apical portion of median lobe moderately wide, parameres slightly exceeding beyond apex of median lobe (Fig. 90a in Zanetti (1987)). Body larger: 4.00– 4.80 mm ..................... L. monticola

6 Temples distinctly longer than eyes. Aedeagus as in Figs. 23, 25, 27 . Body length: 3.00– 4.80 mm. Habitus as in Fig. 13................................................................................................ L . mateui

- Temples about as long as or shorter than eyes............................................................... 7

7 Elytra significantly widened posteriad.................................................................... 8

- Elytra slightly widened posteriad........................................................................ 9

8 Elytra broader than long. Median lobe moderately wide; parameres narrow ( Fig. 20, 22 ). Body length: 3.75–4.65 mm. Habitus as in Fig. 12.................................................................................. L . mariei

- Elytra longer than broad. Median lobe very narrow; parameres wide ( Fig. 3 ). Body length: 3.50–4.55 mm. Habitus as in Fig. 1......................................................................................... L . aterrima

9 Punctation of elytra fine and superficial. Aedeagus as in Fig. 16 or Fig. 92с in Zanetti (1987). Body length: 3.60–4.60 mm. Habitus as in Fig. 10.......................................................................... L . hanseni

- Punctation of elytra moderately coarse and deep........................................................... 10

10 Body yellow-brown to reddish-brown, usually with large yellowish spots on elytra. Median lobe, gradually widened toward apical third, with rounded apex ( Fig. 6 ). Body length: 3.50–4.60 mm. Habitus as in Fig. 2................... L . balearica

- Body darker, without spots on elytra. Median lobe different.................................................. 11

11 Median lobe pubescent; apical part of median lobe moderately narrow, strongly narrowed toward apex ( Figs. 38, 41, 43, 45 ). Body length: 3.50–4.10 mm. Habitus as in Fig. 31................................................. L . pubescens

- Median lobe without pubescence; apical part of median lobe wide, abruptly narrowing toward apex ( Fig. 14 ). Body darker, without spots on elytra. Body length: 3.50–4.55 mm. Habitus as in Fig. 9............................... L . fontinalis

Figures

FIGURES 32–37. Aedeagus of Lesteva osellai, paratypes (32–33: Portugal: Estrela, 34–37: Spain: Picos de Europa): 32, 34, 36–parameral view, 33, 35, 37–lateral view). Scale bar: 0.1 mm.

FIGURES 29–31. Habitus of Lesteva: 29–30–L. osellai (29: male, Spain: Picos de Europa, 30: female, Portugal: Estrela), 31–L. pubescens (Portugal: Estrela). Scale bar: 1.0 mm.

FIGURES 14–19. Aedeagus of Lesteva (14–15: L. fontinalis (Spain: Sierra Magina), 16–17: L. hanseni (Spain: Ronda), 18–19: L. lusitana (Portugal: Sierra de Estrela)): 14, 16, 18–parameral view, 15, 17, 19–lateral view. Scale bar: 0.1 mm.

FIGURES 9–13. Habitus of Lesteva: 9–L. fontinalis (Spain: Despenaperros), 10–L. hanseni (Spain: Ronda), 11–L. lusitana (Portugal: Sierra de Estrela), 12–L. mariei (France: Casteil), 13–L. mateui (Spain: Sierra Nevada). Scale bar: 1.0 mm.

FIGURES 23–28. Aedeagus of Lesteva mateui (23–26: Spain: Sierra Nevada, 27–28: Cazorla): 23, 25, 27–parameral view, 24, 26, 28–lateral view. Scale bar: 0.1 mm.

FIGURES 20–22. Aedeagus of Lesteva mariei (20–21: France: Casteil, 22: Spain: Cubilla): 20, 22–parameral view, 21–lateral view). Scale bar: 0.1 mm.

FIGURES 3–7. Aedeagus of Lesteva (3–5: L. aterrima (3–4: Spain: Covadonga, 5: Spain: Cubilla)), 6–7: L. balearica (Spain: Mallorca): 3, 6–parameral view, 4–5, 7–lateral view. Scale bar: 0.1 mm.

FIGURES 1–2. Habitus of Lesteva: 1–L. aterrima (Spain: Puerto de Cubilla), 2–L. balearica (Spain: Mallorca). Scale bar: 1.0 mm.

FIGURES 38–46. Aedeagus of Lesteva pubescens (38–40: Andorra, 41–42: Portugal: Estrela, 43–44: Spain: Escorial, 45–46: Spain: Despenaperros): 38, 41, 43, 45–parameral view, 40– lateral view (setation of median lobe are not shown), 39, 42, 44, 46–apical portion of median lobe, parameral view. Scale bar: 0.1 mm.