Zyras (Zyras) hetzeli, Assing, 2019

Assing, Volker, 2019, On the Lomechusini fauna of the Palaearctic and Oriental regions. XXVI. New species, a new synonymy, and additional records (Coleoptera: Staphylinidae: Aleocharinae), Beiträge Zur Entomologie = Contributions to Entomology 69 (1), pp. 33-70 : 66

Zyras (Zyras) hetzeli spec. nov.

urn:lsid:zoobank.org:act:F00342B5-F2BF-461A-A84A-282D19159065

(Figs 70, 158–159)

Type material: Holotype: “ TAIWAN, Nantou, Lu-Shan Hot Spring, 1342 m, Conif. forest , litter sifted, 24°01'19"N, 121°11'45"E, 25.VII.2018, Hetzel leg. / Holotypus Zyras hetzeli sp. n., det. V. Assing 2018” (cAss).

Etymology: This species is dedicated to Andreas Hetzel,

Hildesheim, who collected the holotype.

Description: Body length 6.4 mm; length of forebody 2.4 mm. Habitus as in Fig. 70. Coloration: body black with the posterior margins of the abdominal segments slightly paler; legs pale-yellow; antennae black with antennomeres I–II dark-brown; maxillary palpi dark-brown with the apical palpomere yellow.

Antenna relatively short and fine, 1.8 mm long; antennomeres IV weakly transverse, V–VIII of gradually increasing width and increasingly transverse, VIII–X barely 1.5 times as broad as long, and XI approximately as long as the combined length of IX and X.

Elytra with punctation somewhat unevenly distributed, posteriorly distinctly sparser (and with impunctate patches) than anteriorly. Other external characters as in Z. wei .

: tergite VIII with posterior margin somewhat produced and in the middle weakly concave; sternite VIII strongly convex posteriorly; median lobe of aedeagus 0.68 mm long and shaped as in Figs 158–159 ; paramere 0.84 mm long, apical lobe moderately long and slender, not distinctly modified.

: unknown.

Comparative notes: In habitus, many other external characters, and even in the shape of the aedeagus, this species is similar to the widespread and variable Z. wei . It is distinguished, however, by much less massive and shorter antennae, less dense and unevenly distributed elytral punctation, a strongly convex posterior margin of the male sternite VIII ( Z. wei : posterior margin nearly truncate in the middle), and by a smaller median lobe of the aedeagus ( Z. wei : median lobe 0.75–0.80 mm long). The new species is readily separated from other consubgeners recorded from Taiwan by the practically uniformly blackish coloration of the body and antennae alone. For illustrations of other Taiwanese representatives of Zyras sensu strictu see ASSING (2016a, 2017c).

Distribution: The type locality is situated in Nantou province, Taiwan. The holotype was sifted from litter in a coniferous forest at an altitude of approximately 1340 m.

Figures

Figs 145–165:Drusilla spiniventris(145–147), D. breviuter(148–152), Pheidologitonetes biplicatus (153–154), Zyras conlectus (155– 157), Z. hetzeli (158–159), Z. reductus(160–162), andZ. shavrini(163–165): male tergite VIII (145, 148); median lobe of aedeagus in lateral and in ventral view (146–147, 149–150, 153–156, 158–161, 163–164); female tergite VIII (151); spermatheca (152); paramere (157, 162, 165). Scale bars: 145–151, 153–165: 0.2 mm; 152: 0.1 mm.