Pseudoodes emeishanicus, 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 : 27-29

6. Pseudoodes emeishanicus sp. n.

( Figs 9 A–G, Table 2)

Type material. Holotype ♂, somewhat in teneral condition, 2011 VIII 21 D [day], 1400m Huang Hao leg., Inst. of Zoology, CAS, Sichuan, Emeishan Xixinsuo Temple [w, p] // China, Sichuan, Emeishan, Xixinsuo, 1400m, 2011.8.21 D HUANG Hao collector, Institute of Zool., CAS [w, p] ( IZAS).

TME: 1 specimen. TGE: 1♂.

Diagnosis. This species is separated from other members of the species group by its shorter pronotum (PW/ PL>1.65), with the least pointed anterior angles, shaft of median lobe long and narrower ( Fig. 9F ) and male protarsomere 2 barely longer than wide (W/Lp2: 1.13). The species is most similar to P. tianlinensis but the latter species has anterior angles of pronotum more distinctly pointed, shaft of median lobe broader ( Fig. 13G ) and male protarsomere 2 distinctly longer than wide (W/Lp2: 1.26).

Description. Habitus. Specimens of moderate size (BL: 13 mm, BW: 5.2 mm), with ovate, subconvex body ( Fig. 9A ). Ratios and measurements. See Table 2. Color and luster. Body dark brown, appendages rufous. Integument moderately shiny, without iridescence. Punctuation. Dorsal surface without punctuation; prosternum and metasternum at sides, and metepisternum moderately punctate; pro- and mesoepisternum nearly smooth; abdominal ventrites punctate at sides. Head. About half as wide as pronotum ( Table 2). Mentum tooth with apex truncate, with distinct paramedial border ( Fig. 9C ). Thorax. Pronotum ( Fig. 9B ) with sides slightly rounded toward posterior angles (PW/PB: 1.06); maximum width in posterior third; laterobasal impressions shallow; base nearly straight; anterior angles rounded, moderately projected. Prosternum with median longitudinal sulcus distinct, deeper and located more posteriad than in P. tianlinensis ; prosternal process elliptic, more narrowly rounded apically than in other species of “ rambouseki ” group except P. tianlinensis ( Fig. 9D ). Metepisternum significantly wider than long (MA/MM: 1.53), with lateral margin convex, coadunation with epipleuron short, located anteriorly ( Fig. 9E ). Elytra. Apical sinuation weak, poorly defined. Basal margin distinct laterally, not forming distinct denticle at shoulder, disappearing medially at level between striae 2 and 3. Parascutellar striola distinct, but shallow, punctiform, less impressed than other striae; striae 1–3 superficially punctate anteriorly, remaining striae impunctate. 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 dilated distally. Protarsomeres 1–3 of male moderately dilated, with second tarsomere scarcely wider than long (W/Lp2: 1.13). Male genitalia. Median lobe ( Figs 9F, G ) with basal bulb moderately long, narrow; shaft long, barely swollen medially; apex short, curved ventrally; apical lamella short, widely rounded. Female genitalia. Unknown.

Etymology. The name refers to Mount Emei, where the type specimen was collected.

Distribution. Presently known only from Mount Emei, Leshan City, Sichuan Province, China.

Bionomics. The collector, Mr. Huang told us that the holotype was caught on the mountain road from Xixinsuo Temple to Wannian Temple, just after a rainfall.

Notes. The holotype is partly teneral, with genitalia incompletely chitinized. Thus, its brownish coloration may not be indicative for fully mature individuals.

Figures

FIGURE 9. Pseudoodes emeishanicus sp. n., holotype. A: habitus and labels; B: head and pronotum; C: mentum (white spots show locations of submental setiferous punctures); D: prosternal process; E: right 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).

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).