Nazeris mirabilis, Gao & Da & Hu, 2023

Gao, Zhuo-Qun, Da, Wa & Hu, Jia-Yao, 2023, The Nazeris fauna in Xizang, China (Coleoptera, Staphylinidae, Paederinae), Zootaxa 5369 (1), pp. 131-145 : 132

publication ID	https://doi.org/ 10.11646/zootaxa.5369.1.7
publication LSID	lsid:zoobank.org:pub:9DCFA15A-538D-446C-B468-44276FBB60D3
DOI	https://doi.org/10.5281/zenodo.10166570
persistent identifier	https://treatment.plazi.org/id/03CC87CF-FFF9-8557-0DAD-FE41FF1EF992
treatment provided by	Plazi
scientific name	Nazeris mirabilis
status	sp. nov.

Treatment

Nazeris mirabilis sp. n.

Figs 1A View FIGURE 1 , 2A View FIGURE 2 , 3A–G View FIGURE 3 , 10G View FIGURE 10

Type material. Holotype: CHINA: male, ‘ Xizang, Dinggyê County, Zhêntang Town, Ganma Zangbo Valley , 27°51′50″N, 87°24′24″E, 2400 m. 28.vi.2021, Z. Peng leg.(ŮãṪĠƂỆḑạffLjãţffië)’ ( SNUC) GoogleMaps . Paratypes: 2 males, 4 females, same data as holotype GoogleMaps .

Diagnosis. Body dark brown; head with non-umbilicate punctation, shaped like sunflower seed; abdominal tergites with fine microsculpture on all tergites; aedeagal ventral process with very broad apex; dorso-lateral apophyses slender, not reaching apex of ventral process.

Description. Body length 5.6–6.4 mm; forebody length 3.1–3.3 mm.

Body ( Fig. 1A View FIGURE 1 ) dark brown; antennae and legs yellowish brown.

Head ( Fig. 2A View FIGURE 2 ) 1.02–1.04 times as long as wide; punctation very dense, moderately coarse and non-umbilicate, shaped like sunflower seed; interstices lacking microsculpture; postocular portion 1.9–2.1 times as long as eye length.

Pronotum ( Fig. 2A View FIGURE 2 ) 1.21–1.28 times as long as wide, 0.96–1.04 times as long and 0.80–0.83 times as broad as head; punctation non-umbilicate, moderately dense, slightly coarser than that of head; midline posteriorly with very narrow impunctate elevation; interstices lacking punctation.

Elytra ( Fig. 2A View FIGURE 2 ) 0.61–0.69 times as long as wide, 0.51–0.56 times as long and 0.98–1.05 times as broad as pronotum; punctation similar to that of pronotum; interstices lacking microsculpture.

Abdomen ( Fig. 1A View FIGURE 1 ) with punctation dense and rather coarse on tergites III–IV, dense and less coarse on tergites V–VI, moderately dense and fine on tergites VII–VIII; with fine microsculpture on all tergites ( Fig. 3A View FIGURE 3 ).

Male. Sternite VII ( Fig. 3B View FIGURE 3 ) with posterior margin shallowly emarginated in the middle. Sternite VIII ( Fig. 3C View FIGURE 3 ) with V-shaped posterior excision. Aedeagus ( Figs 3D–G View FIGURE 3 ) with ventral process very broad, with small excision at apex in ventral view; dorso-lateral apophyses slender, distinctly curved near apex in ventral view, not reaching apex of ventral process.

Distribution and habitat data. The species is known only from Dinggyê County in southern Xizang ( Fig. 10G View FIGURE 10 ). The specimen was collected by sifting leaf litter at an altitude of 2400 m.

Comparative notes. The new species is very similar in general appearance and aedeagal characters to N. confluens Assing, 2014 , but can be separated by the microsculpture on all abdominal tergites ( Fig. 3A View FIGURE 3 ) and the ventral process of aedeagus distinctly widened apicad in ventral view ( Figs 3D, E View FIGURE 3 ), while hardly widened apicad in N. confluens .

Etymology. The specific epithet ‘ mirabilis (strange)’ is a Latin adjective referring to the special punctation on its head.