Chlaenius (Sphodromimus) davidi, Qin & Germann & Liang, 2022

Qin, Yuyao, Germann, Christoph & Liang, Hongbin, 2022, Key to the Chinese species of the subgenus Sphodromimus Casale, 1984 (Carabidae, Chlaeniini, Chlaenius) with descriptions of two new species, ZooKeys 1135, pp. 61-91 : 61

publication ID	https://dx.doi.org/10.3897/zookeys.1135.93843
publication LSID	lsid:zoobank.org:pub:7E562C71-BD10-446E-9E10-2AA52A9888FB
persistent identifier	https://treatment.plazi.org/id/B5DB7516-49F2-5FBF-B9B9-635FA0BEBE81
treatment provided by	ZooKeys by Pensoft
scientific name	Chlaenius (Sphodromimus) davidi
status	nom. nov.

Treatment

Chlaenius (Sphodromimus) davidi nom. nov.

Figs 9A, B View Figures 9, 10 , 15 View Figures 11–16 , 23 View Figures 17–24 , 31A-E View Figures 31–33 , 39A-C View Figures 37–39 , 40 View Figure 40

Vachinius (Sphodromimus) wrasei Kirschenhofer, 2003: 37 (type locality: China, Guangdong); Lorenz 2005: 342 (catalogue); Brunk and Kirschenhofer 2016: 54 (record); Azadbakhsh and Kirschenhofer 2019: 1 (genus Chlaenius , subgenus Chlaenius Sphodromimus ) [nec C. (Lithochlaenius) wrasei (Kirschenhofer, 1997)]

Type locality.

Guangdong, Xinyi, Datianding.

Material examined.

Total 10 specimens. China - Guangdong : Holotype female (DWC, photo), China, Guangdong, 1500 m, Xinyi: Datianding (22.16/111.15) - VIII-1997 - leg. Li / Holotypus, Chlaenius (Sphodromimus) wrasei sp. nov. det. Kirschenhofer, 2001[red label]/COLL WRASE, BERLIN ; 1 ♂ and 4 ♀♀ (IZAS), Guangdong, Xinyi, Yunkai Shan , 1508.21m / 22.291317°N, 111.209888°E, 2017.V.30, Y.Z. Liu, S.P. Yu leg., Inst. of Zoology GoogleMaps ; 2 ♀♀ (IZAS), Guangdong, Xinyi, Yunkai Shan , 1250.55 m / 22.292692°N, 111.203833°E, 2017.V.31, Y.Z. Liu, S.P. Yu leg., Inst. of Zoology ; Guangxi GoogleMaps : 2 ♂♂ (IZAS), Guangxi Prov, Daming Shan, Tianping Protect Station , N 23.49811, E 108.43715 / 1230 m, 2011.V.27 N, Xinlei Huang Coll., Inst. of Zoology .

Diagnosis.

Pronotum fully metallic purple, or greenish purple. PW/PL = 1.09-1.11; PAW/PBW = 0.83-0.93 (Fig. 23 View Figures 17–24 ); pronotum cordate with posterior angles nearly right angled, rounded at tips; disc sparsely punctate and pubescent, with dense, shallow, transverse rugosities, without glabrous area in the middle. Elytral intervals convex basally, flat apically, densely punctate and pubescent. Hind wings reduced. Metepisterna short, MW/ML = 1.11-1.15 (Fig. 15 View Figures 11–16 ). Legs totally black.

Comparisons.

This species is most similar to Chlaenius (Sphodromimus) enleensis Mandl, 1992 (Figs 8 View Figures 7, 8 , 10A, B View Figures 9, 10 ), sharing the large size, general shape of apical lamella, metepisterna short (Figs 15 View Figures 11–16 , 16 View Figures 11–16 ), and reduced hind wings, but can be distinguished from the latter by: (1) pronotum purple or greenish purple (Fig. 23 View Figures 17–24 ) (green to coppery, but not purple in C. enleensis , Fig. 24 View Figures 17–24 ); (2) femora black (middle of mesofemora and metafemora brown in C. enleensis ); (3) elytral intervals convex basally, flat apically (interval convex throughout in C. enleensis ); (4) apical lamella wider at base (narrower in C. enleensis , Figs 32A, C, D View Figures 31–33 , 33A, C, D View Figures 31–33 )

Description.

BL = 21.3-24.4 mm, BW = 8.0-8.7 mm. PL = 4.5-5.0 mm, PW = 5.0-5.5 mm, MW = 2.0-2.1 mm, ML = 1.7-1.9 mm. Head, elytra, venter, and legs dark and black; pronotum fully purple or greenish purple; antennae, labial and maxillary palpi, apex of mouthparts and tarsomeres dark brown.

Head. Vertex finely punctate, pubescent, without a distinct glabrous area; antennae long, reaching middle of elytra; antennomere 3 ~ 1.5 × longer than antennomere 4.

Pronotum cordiform, PW/PL = 1.09-1.11 (Fig. 23 View Figures 17–24 ), widest at apical third; anterior margin slightly concave, PAW/PBW = 0.83-0.93; lateral margins distinctly narrowed from middle to base, distinctly sinuate before posterior angles; anterior angles rounded, slightly projected forward; posterior angles nearly right angled, rounded at tips; disc gently convex, sparsely punctate and pubescent, with dense shallow transverse rugosities, without glabrous area in the middle; median line distinct, fine, not reaching anterior margin and base; basal foveae deeply arcuate, punctate and pubescent.

Elytra elongate, EL/BW = 1.61-1.75, gently convex near anterior third, widest near posterior third, rounded at apex in males, subtruncate in females; striae with deep punctures; parascutellar striae well developed; parascutellar pores present; intervals convex at base, flat from middle to apex, densely punctate and pubescent; sutural angles obtuse and right; hind wings reduced.

Venter densely punctate, pubescent, metepisterna (Fig. 15 View Figures 11–16 ) short, MW/ML = 1.11-1.15; abdominal sternites III-VI with one setiferous puncture each side, sternite VII with one pair of setiferous punctures in males, two pairs in females; all abdominal sternites with distinct impressions laterally.

Legs long and slender; tarsi nearly smooth dorsally.

Male genitalia. Median lobe (Fig. 31B-E View Figures 31–33 ) long, strongly bent to ventral side; apical orifice opened dorsally, long and wide, not reaching basal bulb; in dorsal view, apical lamella triangular (Fig. 31A View Figures 31–33 ), distinctly bent to right side, longer than basal width, each side of middle apical lamella with a denticulation or absent on right side; in left lateral view, apical portion slightly bent dorsally at apex, basal orifice ~ 90° relative to preapical shaft; left paramere larger than right paramere, both helically curved; endophallus with flagellum thick and straight; basal part of flagellum with irregular bursa; apical part of flagellum with drop-shaped sclerite.

Female genitalia. Bursa copulatrix (Fig. 39A-C View Figures 37–39 ) round, base with a distinct long digitiform protrusion; villous canal long, tortuously contorted, adhered to common oviduct; spermatheca and spermathecal gland absent.

Distribution.

(Fig. 40 View Figure 40 ) China (Guangdong; Guangxi).

Remarks.

Chlaenius (Sphodromimus) wrasei was originally described as a member of the genus Vachinius . Azadbakhsh and Kirschenhofer (2019) moved it to the genus Chlaenius . However, in a result of this treatment, it became a junior homonym of Chlaenius (Lithochlaenius) wrasei (Kirschenhofer, 1997). Herein, we propose a new replacement name for the former - Chlaenius (Sphodromimus) davidi nom. nov., based on the first name of the well-known specialist on the ground beetles, David W. Wrase.

This species was described based on a single female from Datianding, Xinyi, Guangdong, China. Recently, one male and six females were collected from the type locality, and those specimens fit well with the original description and illustration of C. davidi nom. nov. Two more males were collected in Guangxi, which are identical to the holotype.