Lesteva (s.str.) dabashanensis Rougemont, 2000

Shavrin, Alexey V., 2017, New species and records of Lesteva Latreille, 1797 from China (Coleoptera: Staphylinidae: Omaliinae: Anthophagini), Zootaxa 4306 (1), pp. 108-120 : 110-112

Lesteva (s.str.) dabashanensis Rougemont, 2000

( Figs. 4–12 )

Lesteva dabashanensis Rougemont, 2000: 153 Lesteva michaeli Rougemont, 2017 syn. n.

Type material examined: Holotype of Lesteva michaeli Rougemont, 2017 ♂ [The preparation of the aedeagus and apical abdominal segment in Canadian balsam was attached under the card with beetle]: ‘CHINA: W-Hubei (Daba Shan) | mountain range NE Muyuping | pass 12 km N Muyuping, | 31°32' N, 110°26' E. 2380 m, | leg. M. Schülke [C01-15]’ <rectangular label, printed>, ‘ 17.VII.2001, | N pass, N- slope with young | deciduous forest, bank of | small creek, moss | (sifted) [C01-15]’ <rectangular label, printed>, ‘HOLOTYPE | Lesteva michaeli | des. 2013 | G. de Rougemont’ <red rectangular label, printed>, ‘ Lesteva | dabashanensis | Rougemont, 2000 | Shavrin A.V. det. 2017’ (MNHUB).

Material. GANSU PROVINCE: 3 ♂, 2 ♀: ‘CHINA, Gansu, Dalijia | Shan, 60 km W Linxia | 3475m, 11.VII.1994 | A. Smetana [C8; a seepage on an almost vertical wall, specimens taken from soaking wet moss]’ (NSMT, cS); SICHUAN PROVINCE: 3 ♂, 8 ♀: ‘CHINA: SICHUAN PROV., | Moxi env., Hailuogou valley, | Caohaizi [lakes], above Camp 2, | 2770 m, 18.-21. VI.2014, | 29°35ʹ11ʹʹN 102°01ʹ36ʹʹE’, ‘shallow lakes and marsh surrounded with mixed forest, with Abies , Pinus , Rhododendron , | broadleaved bushes, bamboo | J. Hájek & J. Růžička’ (NMPC, cS); 1 ♂, 1 ♀: ‘CHINA: SICHUAN PROV. | 37 km N Baoxing, Qiao Qi vill. | Jiajin Shan Nat. Forest Park | 14.-16. VI.2014, 2480 m, | 30°41.2ʹN 102°42.3ʹE, ‘Individually from vegetation; | flowering Rose; marsh; along | stream; in horse dungs | J. Hájek, J. Růžička & M. Tkoč leg.’ (NMPC); 1 ♀: ‘CHINA, Sichuan, Gongga | Shan, Lake abv. Camp 2 | 2750m, 25.VI.1994 | A. Smetana [C23; shallow lake in a primary deciduous forest. Specimens taken by sifting wet moss and grassy vegetation on large fallen trees close to the water]’ (NSMT); HUBEI PROVINCE: 2 ♂, 3 ♀: ‘CHINA: Hubei, 9.10.2004 | Shennongjia Forest Distr. | 10 km E Muyu, Chaiqi | 1600 m, leg. Schönmann, | & Wang (CWBS 522 [2-4 m broad river in bushy forest, limestone and sandstone, large rocks and scree, flood debris and submersed grass roots, river mostly in deep gorge (partly running through cave), collected in somewhat sunny flat (as opposed to steep) area])’ (NMW, cS); 2 ♂, 1 ♀: ‘CHINA: W- Hubei Daba | Shan pass E of Mt. | Da Shennongjia 12 km’, ‘NW Muyping 31°30ʹN | 110°21ʹE 2050m 19.7. | 0 1 A. Smetana [C112; a creek in a mixed forest, specimens taken by sifting moist to soaking wet moss on large rocks in the creek and on rotting wood quite close to the water]’ (NSMT, cS).

Remarks. The species was described by Rougemont (2000) from Shenxianhe (1910 m a.s.l), Langao Xian, Shaanxi. Measurements (n=27) of the specimens studied by me from Gansu, Sichuan and Hubei provinces: WH: 0.58–0.65; LH: 0.43–0.48; LA (on average): 1.55; LE: 0.20¯0.24; LT: 0.08¯0.10; LP: 0.61–0.70; WPMax: 0.65– 0.70; WPMin: 0.45–0.60; LEl: 1.10–1.25; WE: 1.20–1.50; WA: 1.15¯1.45; LAed: 0.65–0.75; TL: 3.20–3.82. Considerable variability of L. dabashanensis was observed in the coloration and proportions of the body, and in the shape of the apical part of the aedeagus. The coloration varies from yellow-brown to black; elytra unicolourous or with distinct yellow-brown to reddish brown transverse macula in first third of each elytron; antennomere yellow brown to brown, with yellow basis of antennomeres 1̄2, sometimes with fully yellow antennomeres 1̄2 or with paler apical three antennomeres; femora and tibiae yellow-brown to brown with yellow to yellow-brown apical parts; ocelli, mouthparts and tarsi yellow to yellow brown. The shape of the aedeagus is variable ( Figs. 4–11 ) in the shape of its apex and apical portion of the parameres: with rounded apices, as the result of the rolling of setiferous lobes (compare Figs. 4–5 and schematic Fig. 16a in Rougemont 2000) or with disclosed lobes, as in Figs. 6–7 . The distribution of the species is illustrated in Fig. 12 . Recently, Rougemont (2017) described L. michaeli Rougemont, 2017 based on two specimen with black forebody and “[…] apical margin of elytra narrowly brownish” (habitus as in Fig 5 in Rougemont 2017), from Daba Shan range, Hubei (the type locality of it is indicated by white circle in Fig. 12 ). However, the study of the holotype and structure of its aedeagus ( Fig. 5 a in Rougemont 2017) leaves no doubt that it refers to L. dabashanensis , so that L. michaeli is here placed in the synonymy with it.

It is here recorded for Sichuan and Gansu for the first time.

Figures

FIGURE 12. Distribution of Lesteva dabashanensis Rougemont, 2000, south-western China (white circle: type locality of L. michaeli Rougemont, 2017).

FIGURES 4 ‒ 11. Aedeagus of Lesteva dabashanensis Rougemont, 2000 (4, 6, 8, 10 — GANSU: Dalijia Shan; 5, 9 — HUBEI: Shennongjia; 7, 11 — SICHUAN: Hailuogou): 4 ̅ 7 — parameral view, 8 ̅ 11 — lateral view; 4 ̅ 5 — aedeagi with rolled apical lobes of the parameres (for details see the text); 6 ̅ 7 ̅ aedeagi with disclosed apical lobes of the parameres (for details see the text). Scale bar: 0.2 mm.