Nomuraius piaoacus Yin & Li

Yin, Zi-Wei & Li, Lizhen, 2013, Taxonomic notes on the genus Nomuraius Hlaváč (Staphylinidae: Pselaphinae), Revue suisse de Zoologie 120 (4), pp. 563-573 : 565-567

publication ID

https://doi.org/ 10.5281/zenodo.7560404

DOI

https://doi.org/10.5281/zenodo.7560414

persistent identifier

https://treatment.plazi.org/id/03A3879F-6C55-FFAA-FF63-FF4CFF6BF9A0

treatment provided by

Carolina

scientific name

Nomuraius piaoacus Yin & Li
status

sp. nov.

Nomuraius piaoacus Yin & Li View in CoL , new spec.

Figs 1A View FIG , 2 View FIG , 6 View FIG

HOLOTYPE: ♂, labelled ‘ Mt. Pia Oac (1,250 m) / Cao Bang Prov. / [ N-VIETNAM] / 19.v.2000 / S. Nomura leg. // HOLOTYPE [red] / Nomuraius piaoacus / sp. n., Yin & Li / det. 2013, pcPH’.

DIAGNOSIS: Length 2.82 mm. Male: maxillary palpomeres II shortly projecting laterally; posterior half of head and anterior portion of pronotum strongly modified with large cavity and setose tufts, respectively; protibiae with distinct thin apical spur; metatibiae simple, not expanded medially near apices.

DESCRIPTION

Male ( Fig. 1A View FIG ): Length 2.82 mm. Head slightly wider than long, HL 0.52 mm, HW 0.56 mm, posterior half with large, deep cavity; eyes each composed of about 35 facets. Antennal clubs as in Fig. 2A View FIG . Pronotum ( Fig. 2B View FIG ) about as long as wide, PL 0.61 mm, PW 0.59 mm, apical portion modified with distinct median projection covered with dense setose tufts apically; distinct median- and lateral antebasal foveae round. Elytra wider than long, EL 0.84 mm, EW 1.02 mm. Long metaventral processes with apices curved anteriorly at apices ( Fig. 2C View FIG ). Trochanters and femora ( Figs 2D, F, G View FIG ) simple; protibiae ( Fig. 2E View FIG ) with thin apical spur; metatibiae simple near apices ( Fig. 2H View FIG ). Abdomen broad at base and narrowed apically, AL 0.85 mm, AW 1.00 mm. Tergite VIII ( Fig. 2I View FIG ) and sternite VIII ( Fig. 2J View FIG ) transverse, sternite IX as in Fig. 2K View FIG . Aedeagus length 0.56 mm, with symmetric median lobe apically bent rightwards ( Figs 2 View FIG L-N).

Female: Unknown.

DISTRIBUTION AND NATURAL HISTORY: The new species is currently known only from the type locality ( Fig. 6 View FIG ). The single specimen was probably sifted from leaf litter from forest floor like the other congeners.

COMPARATIVE NOTES: Nomuraius piaoacus can be easily separated from the other congeners by the strongly modified head and pronotum, and the simple metatibiae in the male. Both N. sinicus new spec. (described below) and N. vietnamicus have slightly modified head and pronotum, and have the metatibiae with apical portion more or less expanded medially near the apices.

ETYMOLOGY: The specific epithet is derived from the type locality, Pia Oac Mountain.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Nomuraius

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