Nebria (Sadonebria) hakusana Sasakawa, 2022
publication ID |
https://doi.org/ 10.15298/rusentj.31.1.02 |
DOI |
https://doi.org/10.5281/zenodo.10944467 |
persistent identifier |
https://treatment.plazi.org/id/038987E9-861A-FF92-7B6C-ED3EFDB1FBA6 |
treatment provided by |
Felipe |
scientific name |
Nebria (Sadonebria) hakusana Sasakawa |
status |
sp. nov. |
Nebria (Sadonebria) hakusana Sasakawa , sp.n.
Figs 2–7.
TYPE MATERIALS: Holotype, ♂ (KS), Shinmata Pass , Nomuki , Katsuyama , Fukui Prefecture, Japan, 1.vi.2020, S. Inoue leg.; paratypes, 1♂ (KS), Mt. Sanpôkuzure, ca 1,200 m, Shirakawa City, Gifu Prefecture, Japan, 23–24.vi.2005, H.Ikeda leg.; 1♂ 2♀♀ (EUM), “KAGA-Hakusan Nakahanba ~ Bettonozoki (1,500~ 1,750 m) 1 VIII. 1973 M. Miyatake ” [Nakahanba (1,500 m) ~ Bettonozoki (1,500 m), Mt. Hakusan , Shiramine, Hakusan, Ishikawa Prefecture, Japan].
DESCRIPTION. External characters ( Figs 2–3). Body length (including mandibles): ♂, 12.5–13.6 mm; ♀, 12.6– 12.8 mm. PL / PW: 0.73–0.76; PAW/ PW: 0.73–0.76; PPW/ PW: 0.64–0.68. EL/EW: 1.59–1.71. Habitus slender. Hind wings atrophied. Dorsal surface shiny and almost black; head with a dark-brown patch between eyes; pronotal and elytral margins dark-brown; mouth appendages and antennae reddish to dark brown; legs dark brown except for femora, which are blackish brown. Pronotum cordate and convex; lateral margins reflexed throughout; hind angle acute; laterobasal impression large and deep; median line distinct in the middle, absent near the anterior margin, rudimentary near the posterior margin; surface of central part and near the anterior margin almost smooth; surface near the posterior margins very sparsely punctate; surface of the lateral margins very sparsely punctate and/or shallowly, transversely wrinkled; two marginal setae on each lateral side, anterior setae near the widest pronotal point, and posterior setae near hind angles. Elytra oblong, widest behind the middle; 7–10 setigerous pores on interval 3. Abdominal sterna 4–7 usually with a pair of setae, but in the male from Mt. Sanpôkuzure, additional setae on left side of sternum 4 and on both sides of sternum 7.
Male genitalia ( Figs 4–6). Aedeagus slender and strongly bent at apical 2/5; ventral contour of subapical part from lateral view arcuate ventrally; apex simple and widely rounded.Endophallus straight, elongate, directed posterodorsally; laterobasal lobes large, hemispherical; lateroapical lobes absent; dorsobasal lobe bifid from lateral view, with the subapex of basal one smaller than that of apical one; dorsoapical lobe widely swollen, and smaller than the laterobasal and dorsobasal lobes; ventroapical lobe barely swollen. Both right and left parameres spatulate, with the former larger than the latter.
DIAGNOSIS. Distinguished from N. quinquelobata Sasakawa, 2016 , N. kiso , and N. mikawa , which are relatively closely distributed ( Fig. 1 View Fig ), by the following characters: from N. quinquelobata by dark brown legs [versus yellowish brown legs in N. quinquelobata ; Sasakawa, 2016], and from N. kiso and N. mikawa by less cordate and less punctate pronotum ( Figs 7–9).
ETYMOLOGY. Named after the Hakusan Mountains, where the type materials were collected.
PL |
Západoceské muzeum v Plzni |
PW |
Paleontological Collections |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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