Pseudoodes tianlinensis, Guéorguiev & Liang, 2020

Guéorguiev, Borislav & Liang, Hongbin, 2020, Revision of the Palaearctic and Oriental representatives of Lachnocrepis LeConte and Oodes Bonelli (Coleoptera: Carabidae), with special account on Chinese species, Zootaxa 4850 (1), pp. 1-89 : 35

10. Pseudoodes tianlinensis sp. n.

( Figs 13 A–G, Table 2)

Type material. Holotype ♂, 2002–V–31 [Guangxi, Tianlin, Cenwanglao Shan Mountain] 1500–2062 m [Yang Xiujuan leg.] [w, p] // China, Guangxi, Tianlin Cengwanglao Shan, 1500–2062m, YANG Xiujuan collector Museum of Hebei University [w, p] (HBUM).

TME: 1 specimen. TGE: 1♂.

Diagnosis. This species differs from other wingless members of the species group except P. rambouseki in its smallest MA/MM ( Table 2). It is most similar to P. emeishanicus , from which it can be separated by its longer pronotum (see PW/PL, Table 2) and characters noted in the “Diagnosis” under P. emeishanicus . Pseudoodes tianlinensis differs from P. rambouseki in its pronotum much wider than the head (PW/HW>2.10), different apical lamella of median lobe ( Fig. 13G ), slightly dilated and almost straight male mesotibia, and W/Lp2: 1.26.

Description. Habitus. Specimens of moderately large size (BL: 13.5 mm, BW: 5.3 mm), with ovate, subconvex body ( Fig. 13A ). Ratios and measurements. See Table 2. Color and luster. Body dorsal surface black, underside dark brown, appendages piceous to rufous. Integument moderately shiny, without iridescence. Punctuation. Dorsal surface without punctuation; prosternum and metasternum at sides, and metepisternum moderately punctate; proepisternum nearly smooth; mesoepisternum shallowly punctate; abdominal ventrites 1–5 punctate and finely rugose at sides, ventrite 6 punctate at apex. Head. Less than half width of pronotum ( Table 2). Mentum tooth with apex truncate, with paramedial border distinct ( Fig. 13C ). Thorax. Pronotum ( Fig. 13B ) with sides slightly rounded toward posterior angles (PW/PB: 1.06); maximum width in posterior third; laterobasal impressions shallow but distinct; base nearly straight; anterior angles rounded, appreciably projected anteriorly. Prosternum with median longitudinal sulcus shallow, located more medially than in P. emeishanicus ; prosternal process elliptic, more narrowly rounded apically than in other species of “ rambouseki ” group except P. emeishanicus ( Fig. 13D ). Metepisternum significantly wider than long (MA/MM: 1.50), with lateral margin slightly convex, coadunation with epipleuron relatively long, located anteriorly and in middle ( Fig. 13E ). Elytra. Apical sinuation moderate, well-defined. Basal margin distinct laterally, forming a small denticle at shoulder, disappearing medially at level between striae 2 and 3. Parascutellar striola rather reduced, punctiform, appreciably less impressed than other striae; striae superficially punctate anteriorly. Intervals 1–7 subconvex, interval 8 appreciably more convex than others. Legs. Metacoxal basal sulcus reduced at side, barely reaching lateral third. Male mesotibia slightly but more dilated distally than in P. emeishanicus . Protarsomeres 1–3 of male moderately dilated, with second tarsomere wider than long (W/Lp2: 1.26). Male genitalia. Median lobe ( Figs 13F, G ) with basal bulb moderately long, narrow; angle between basal bulb and shaft acute; shaft long, swollen proximally; apex short, curved ventrally; apical lamella short, rounded. Female genitalia. Unknown.

Etymology. The species is named for Tianlin County, where the type locality is situated.

Distribution. Presently known only from Cenwang Laoshan Mts. in northwestern Guangxi Zhuang Autonomous Region, China.

Bionomics. Nothing is known about the bionomics of this species.

Figures

FIGURE 13. Pseudoodes tianlinensis sp. n., holotype. A: habitus and labels; B: head and pronotum; C: mentum; D: prosternal process; E: left metepisternum and metacoxa; F: median lobe of aedeagus, left lateral view; G: same, dorsal view. Scale lines = 2 mm (Fig. A); = 1 mm (Figs B, E); = 0.5 mm (Figs C–D, F–G).