Nazeris huapingensis Hu & Li, 2017

Li, Li-Zhen, 2017, Four new species of Nazeris Fauvel in Guangxi, China (Coleoptera, Staphylinidae, Paederinae), Zootaxa 4312 (2), pp. 333-342 : 335-336

Nazeris huapingensis Hu & Li , sp. n.

( Figs 6 , 10–14 , 30 )

Type material. Holotype: CHINA: male: " China: Guangxi Prov., Lingui County, Huaping N. R., Anjiangping , alt. 1320 m, 15.VII.2011, Tang & He leg. " ( SNUC). Paratypes: 5 females, same data as holotype ; 1 female, same data, except " 1400–1700 m, 14.VII.2011 " ; 4 males, 3 females, same data, except " 1400–1700 m, 14.VII.2011, Peng Zhong leg." ; 1 male, 1 female, same data, except " 12.VII.2011, Chen, Ma, Peng, Zhu leg." ; 1 female, same data, except " 1300 m, 12–15.VII.2011, Tang L. & He W. -J. leg." ; 1 male, same data, except " 1300–1780 m, 16– 17.VII.2011, Chen, Ma, Peng, Zhu leg." ; 1 male, 1 female, same data, except " 1700 m, 17.VII.2011, Peng Zhong leg." ; 2 females, same data, except " 1400–1700 m, 17.VII.2011, Tang L. & He W. -J. leg." ; 1 male, 1 female, same data, except " 1500 m, 18.VII.2011, Tang Liang leg." .

Description. Body length 4.3–5.3 mm; forebody length 2.3–2.6 mm.

Body ( Fig. 6 ) reddish brown; antennae and legs yellowish brown.

Head ( Fig. 10 ) approximately as long as wide; punctation very dense, moderately coarse, distinctly umbilicate and partly confluent, interstices without microsculpture; postocular portion approximately 1.7 times as long as eye length.

Pronotum ( Fig. 10 ) 1.11–1.16 times as long as wide, 0.98–1.04 times as long and 0.86–0.90 times as broad as head; punctation non-umbilicate, moderately dense and as coarse as that of head; midline posteriorly with short and very narrow impunctate elevation; interstices without microsculpture.

Elytra ( Fig. 10 ) 0.65–0.70 times as long as wide, 0.56–0.60 times as long and 0.95–0.98 times as broad as pronotum; punctation as dense as, and slightly coarser than that of pronotum; interstices without microsculpture.

Abdomen with punctation dense and rather coarse on tergites III–V, dense and less coarse on tergite VI, moderately dense and fine on tergites VII–VIII; interstices lacking microsculpture.

Male. Sternite VII ( Fig. 11 ) with posterior margin shallowly concave in the middle. Sternite VIII ( Fig. 12 ) with V-shaped posterior excision. Aedeagus ( Figs 13, 14 ) with ventral process short and wide, broad in basal half and apex truncate in ventral view; dorso-lateral apophyses moderately slender, slightly curved and roundly widened at apex in ventral view, extending beyond apex of ventral process.

Distribution and habitat data. The species is known only from Huaping in northeast Guangxi ( Fig. 30 ). The specimens were collected by sifting leaf litter at altitudes of 1300–1780 m.

Comparative notes. The new species is very similar to N. obtortus in general appearance and separated only by aedeagal characters: apex of ventral process in ventral view much broader ( Fig. 13 ), apices of dorso-lateral apophyses rounder and broader ( Figs 13, 14 ). The new species is also highly similar to N. latilobatus Assing, 2016 from Maoershan ( Fig. 30 ), about 70 km northeast of Huaping, but the ventral process of aedeagus of the new species is narrower in ventral view, and the dorso-lateral apophyses are roundly widened at apex in ventral view ( Figs 13 ).

Etymology. The specific epithet derived from Huaping, where the species was discovered.

Figures

FIGURE 30. Map showing the distribution of Nazeris in Guangxi A – N. dayaoensis; B – N. luoi; C – N. tani; D – N. qini; E – N. megalobus; F – N. grandis; G – N. damingshanus; H – N. longilobus; I – N. bihamatus; J – N. latilobatus; K – N. obtortus; L – N. huapingensis; M – N. alatus; N – N. exilis; O – N. chenyanae.

FIGURES 6 – 9. Habitus of new species 6 – Nazeris huapingensis; 7 – N. alatus; 8 – N. exilis; 9 – N. chenyanae. Scale bars: 1 mm.

FIGURES 10 – 14. Nazeris huapingensis 10 – forebody; 11 – male sternite VII; 12 – male sternite VIII; 13 – aedeagus, in ventral view; 14 – aedeagus, in lateral view. Scale bars: 10: 1 mm, 11 – 14: 0.5 mm