Published October 25, 2023 | Version v1
Taxonomic treatment Open

Nazeris yangmeius Li, Wu & Hu 2023, sp. n.

  • 1. Laboratory of Systematic Entomology, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai, 200234, China & 850025409 @ qq. com; https: // orcid. org / 0009 - 0006 - 9782 - 4613
  • 2. Management Center of Guangxi Jiuwanshan National Nature Reserve, 141 Minzu Road, Rongshui, Liuzhou, Guangxi, 545399, China & jwsglj 3000 @ 163. com; https: // orcid. org / 0009 - 0002 - 1355 - 4451
  • 3. Laboratory of Systematic Entomology, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai, 200234, China & hujiayao @ shnu. edu. cn; https: // orcid. org / 0000 - 0002 - 9861 - 9551

Description

Nazeris yangmeius Li, Wu & Hu, sp. n.

Figs 1C, 2C, 5A–F

Type material. Holotype: CHINA: male: "China: Guangxi, Huanjiang, Jiuwan Mt., Yangmeiao, 25°12'22.15''N, 108°40'32.01''E, 1250 m, 8.v.2021, Tang, Peng, Cai & Song leg. [ḞƱflữƌfffiƜêDzḏ]" (SNUC). Paratypes: 2 females, same data as holotype; 1 male, 2 females, same data, except " 23.iv.2021 "; 5 females, same data, except "Liuzhou city, Jiuwan Shan N. R., Yangmei'ao, 25°11'42''N, 108°38'51''E, 1200 m, 24–26.vii.2015, Li & Zhao leg." (SNUC).

Diagnosis. Body dark brown, large in size; head with umbilicate punctation; abdominal tergites lacking microsculpture; aedeagal ventral process distinctly narrowed near apex in ventral and lateral view; dorso-lateral apophyses gradually narrowed apicad, not reaching apex of ventral process.

Description. Body length 6.8–7.6 mm; forebody length 3.4–3.5 mm.

Body (Fig. 1C) dark brown; antennae and legs yellowish brown.

Head (Fig. 2C) 1.00–1.11 times as long as wide; punctation very dense, moderately coarse, distinctly umbilicate and partly confluent, interstices lacking microsculpture; postocular portion approximately 1.6–1.8 times as long as eye length.

Pronotum (Fig. 2C) 1.17–1.22 times as long as wide, 1.00–1.10 times as long and 0.89–0.95 times as broad as head; punctation non-umbilicate, moderately dense and as coarse as that of head; midline posteriorly with short and narrow impunctate elevation; interstices lacking microsculpture.

Elytra (Fig. 2C) 0.65–0.68 times as long as wide, 0.53–0.55 times as long and 0.94–1.00 times as dense as pronotum; punctation as dense and coarse as that of pronotum; interstices lacking 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. 5A) with posterior margin truncate at middle. Sternite VIII (Fig. 5B) with triangular posterior excision. Aedeagus (Figs 5C–F) well sclerotized; ventral process long, distinctly narrowed near apex in ventral and lateral view; dorso-lateral apophyses very strong, gradually narrowed apicad in ventral view, not reaching apex of ventral process.

Distribution and habitat data. The species is known only from Jiuwan Mt. in northern Guangxi. The specimens were collected by sifting leaf litter at altitudes of 1,200 –1,250 m.

Comparative notes. The new species is distinguished from all the known species of Nazeris from Guangxi and adjacent area by the distinctive shape of the aedeagus: ventral process distinctly narrowed near apex in ventral and lateral view (Figs 5C–F); dorso-lateral apophyses gradually narrowed apicad in ventral view (Figs 5C, D).

Etymology. The specific epithet is derived from the name of the type locality: Yangmei'ao.

Notes

Published as part of Li, Xin-Meng, Wu, Wei-Ping & Hu, Jia-Yao, 2023, Three new species of Nazeris Fauvel from the Jiuwan Mountain, Guangxi, China (Coleoptera, Staphylinidae, Paederinae), pp. 82-90 in Zootaxa 5360 (1) on pages 85-88, DOI: 10.11646/zootaxa.5360.1.4, http://zenodo.org/record/10151046

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Linked records

Additional details

Biodiversity

Collection code
R, SNUC , SNUC
Event date
2015-07-24 , 2021-04-23 , 2021-05-08
Family
Staphylinidae
Genus
Nazeris
Kingdom
Animalia
Order
Coleoptera
Phylum
Arthropoda
Scientific name authorship
Li, Wu & Hu
Species
yangmeius
Taxonomic status
sp. nov.
Taxon rank
species
Type status
holotype , paratype
Verbatim event date
2015-07-24/26 , 2021-04-23 , 2021-05-08
Taxonomic concept label
Nazeris yangmeius Li, Wu & Hu, 2023