Stomis vignai ssp. megacephalus, Sciaky, 2024

Sciaky, Riccardo, 2024, Review of the Chinese Stomis, with description of nine new taxa and a new key (Carabidae: Pterostichini), Zootaxa 5523 (1), pp. 1-34 : 5

publication ID	https://doi.org/10.11646/zootaxa.5523.1.1
publication LSID	lsid:zoobank.org:pub:D8F096C8-5701-4FE8-B17A-77CA0126BB60
DOI	https://doi.org/10.5281/zenodo.13933868
persistent identifier	https://treatment.plazi.org/id/804C3C65-AA5F-4C6F-BA5F-9193825B24D7
taxon LSID	lsid:zoobank.org:act:804C3C65-AA5F-4C6F-BA5F-9193825B24D7
treatment provided by	Plazi
scientific name	Stomis vignai ssp. megacephalus
status	subsp. nov.

Treatment

Stomis vignai ssp. megacephalus ssp. nov.

https://zoobank.org/ 804C3C65-AA5F-4C6F-BA5F-9193825B24D7

Diagnosis. A Stomis of medium length ( 11.1 mm), black with evident bronze hue on head, pronotum and elytra, with forebody hardly shorter than elytra, elytra very markedly rounded at sides, without humeral tooth. Ratios: El/Pl = 1.90; Ew/Pw = 1.34; El/Ew = 1.28.

Description: Habitus as in Fig. 4 View FIGURES 1–4 . Length 11.1 mm; color black with green hue on head, pronotum and elytra; labrum dark reddish brown, maxillae and palpi reddish; femora dark reddish brown, tibiae and tarsi reddish brown; head wide, smooth, with strong ocular convexity; mandibles rather short, shorter than the rest of the head; the right one almost straight; eyes very small, not protruding from the ocular convexity; pronotum broad, relatively short, widest at two thirds of its length; lateral margins very slightly sinuate before the basal angles; anterior margin almost rectilinear; anterior angles very small, projecting forward as small triangles; base sparsely punctate near the basal angles, almost smooth in the middle; basal foveae rather narrow, starting from the basal angles, as long as one third of the pronotal length; basal angles broadly rounded, basal seta not in the basal angle but where the sinuation begins; lateral gutter narrow all along its length, bearing 1 seta in the anterior half. Elytra oval, very convex, widest almost at middle, with no trace of humeral tooth; striae completely but finely punctate; intervals very slightly convex; humeri completely rounded; lateral gutter well marked and rather broad. Ratios: El/Pl = 1.90; Ew/Pw = 1.34; El/Ew = 1.28.

Type-locality: China, W Hubei, Muyuping NW env., 31° 27’ N 110° 22’ E, 1600 m.

Type-series. Holotype ♀: China, W Hubei, Muyuping NW env., 31° 27’ N 110° 22’ E, 1600 m, 3.V–15.VII.2006, leg. Jaroslav Turna ( CS). GoogleMaps

Etymology. This subspecific epithet points out one of the most characteristic feature of this taxon, that is its very large head.

Distribution. Until now known from a single locality in western Hubei. It is the only Stomis known currently from this province, but I think that further explorations will lead to the discovery of other taxa.