Nipponaphaenops S. Uéno, 1971

Karaoğlan, Beliz Bahar, Yekedüz, Emre, Yazgan, Satı Coşkun, Mocan, Eda Eylemer, Köksoy, Elif Berna, Yaşar, Hatime Arzu, Şenler, Filiz Çay, Utkan, Güngör, Demirkazık, Ahmet, Akbulut, Hakan & Ürün, Yüksel, 2022, Contribution to the Knowledge of the Rakantrechus Complex (Coleoptera, Carabidae, Trechini), with Description of a New Subgenus and a New Species of the Genus Nipponaphaenops S. Uéno, 1971 from Northwestern Shikoku, Western Japan, Bulletin of the National Museum of Nature and Science. Series A, Zoology (Zoology) 48 (3), pp. 119-138 : 131

publication ID	https://doi.org/ 10.50826/bnmnszool.48.3_119
DOI	https://doi.org/10.5281/zenodo.12760131
persistent identifier	https://treatment.plazi.org/id/A95B8783-390A-FFE6-FF1D-FC80FD3BC568
treatment provided by	Felipe
scientific name	Nipponaphaenops S. Uéno, 1971
status

Treatment

Subgenus Nipponaphaenops S. Uéno, 1971 View in CoL

Diagnostic characters. As far as known from the type species, this subgenus is different from another subgenus in the following character states; larger ( BL: 5.8–7.3 mm); head more macrocephalic ( PW / HW 1.14 – 1.27 , PL / HL 1.08 – 1.20 ), more elongate ( HW /HL 0.76–0.84); frontal furrows abbreviated posteriorly; tempora to genae only with a genal seta; penultimate labial palpomere about 1.15 times longer than ultimate one, with two subapical setae on the external face of the former reduced in size ( Fig. 1o View Fig ); antennae longer, slenderer, more than a half longer than elytra; pronotum with hind angles with acute denticle produced posteriad; posterior latero-marginal setae of pronotum absent; elytra more elongate ( EL / EW 1.48 – 1.57 ), with longer prehumeral borders more arcuately sinuate; pore 1 of the marginal umbilicate series of elytra closer to marginal gutter and more distant from elytral base (U1 17.2–18.8), pore 4 of the series more distant from elytral base (U4 33.6–36.1); elytral discal seta of the external series more inwardly (in interval 4), more anteriorly (basal 6/11–10/17) positioned; legs longer and slenderer; ventrites 4–6 each with two or three pairs of paramedian setae ( Fig. 2l View Fig ) .

Taxonomic notes. This subgenus is presently monotypic. One of the diagnostic characters of this subgenus, posteriorly abbreviated frontal furrows, makes the type species, in combination with the so-called aphaenopsian body form, a unique truly aphaenopsian representative within the members of the Trechiama Phyletic Series, as far as the currently included members of the series are considered ( Uéno, 1978, p. 9).

Geographic range. Ohnogahara Karst, west-central area of Shikoku, southwestern Japan ( Fig. 7 View Fig ).