Pterostichus (Chinapterus) liupanensis, Dorjderem & Shi & Liang, 2020
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publication ID |
https://dx.doi.org/10.3897/zookeys.953.52282 |
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publication LSID |
lsid:zoobank.org:pub:3C362CD3-1D85-47DE-A703-AF44067AC929 |
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persistent identifier |
https://treatment.plazi.org/id/56C5BFFA-CAD8-41A5-BF61-A39BFEB7B862 |
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taxon LSID |
lsid:zoobank.org:act:56C5BFFA-CAD8-41A5-BF61-A39BFEB7B862 |
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treatment provided by |
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scientific name |
Pterostichus (Chinapterus) liupanensis |
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sp. nov. |
Pterostichus (Chinapterus) liupanensis sp. nov. Habitus, Figs 28 View Figures 24–29 , 29 View Figures 24–29 ; male genitalia, Figs 38-41 View Figures 30–41 , 46 View Figures 42–57 , 55-57 View Figures 42–57
Type series.
Holotype: male (IZAS) [Figs 28 View Figures 24–29 , 38 View Figures 30–41 , 39 View Figures 30–41 , 46 View Figures 42–57 , 55 View Figures 42–57 ], China, Ningxia A.R., Liupanshan, Xixia Forestry Station, 35.51620N, 106.25086E / 2200 m, 2008.6.25-27, Zhao Zongyi Pitfall trap, Institute of Zoology. Paratypes, 1 male (IZAS) [Fig. 56 View Figures 42–57 ], China, Ningxia A.R., Liupanshan, Longtan Forestry Station, 35.38982N, 106.34508E / 1936 m, 2008.6.23-25, Lou Qiaozhe, pitfall trap, Institute of Zoology. 1 male (IZAS) [Figs 29 View Figures 24–29 , 40 View Figures 30–41 , 41 View Figures 30–41 , 57 View Figures 42–57 ], China, Ningxia A.R., Liupanshan, Xixia Forestry Station, 35.49673N, 106.31310E / 1994 m, 2008.6.25N, Lou Qiaozhe collector, Institute of Zoology.
Diagnosis.
Femora black; pronotum near quadrate, lateral margins near straight before basal angles, which weakly pointed outward and with a small denticle; basal foveae convex between inner and outer grooves; elytral basal pore present, third interval usually with three setigerous pores; fifth tarsomere glabrous ventrally; right paramere strongly elongated and bent, apex rounded, not bent to dorsum.
Description.
BL 12.4-13.2 mm, BW 4.8-5.1 mm. Robust, black, femora black, elytra slightly shiny. Head large, frons smooth or very sparsely punctate; genae short, less than one-third length of eyes; eyes prominent. Pronotum near quadrate; widest slightly before middle, PW/PL = 1.33-1.37; lateral margins largely rounded before middle, nearly straight before basal angles; one mid-lateral seta present at apical one-third; basal margin slightly wider than apical margin, PBW/PAW = 1.12-1.16; basal angles rectangular, weakly protruding outwards, with a small denticle; basal foveae narrow and deep, inner groove obviously present, apex reaching basal third of pronotum, outer groove obsolete; basal fovea convex between inner and outer grooves, not convex between outer groove and lateral margin, basal foveal area coarsely punctate; disc convex, smooth, finely transversely rugose at basal half; apical angle rounded, not protruding. Elytra oblong, EL/EW = 1.46-1.52; basal ridge slightly oblique; shoulder rounded, basal ridge and lateral margin forming an obtuse angle, humeral tooth small and obtuse; apical plica indistinct; basal setigerous pores present; scutellar striae complete; intervals slightly convex, microsculpture finely isodiametric in males; third interval with three setigerous pores, the basal one at basal seventh, adjacent to third stria, the apical two at middle and apical fourth respectively, all adjacent to second stria; ninth interval with umbilical series regularly arranged, slightly sparser in middle; striae deep, indistinctly punctate. Fifth tarsomere glabrous ventrally; meso- and meta-tarsomeres I and II with outer groove. Terminal ventrite shallowly depressed and rugose in males. Male genitalia. Ventral margin of median lobe near straight at middle, obviously bent downwards near apex; apical orifice opened left-dorsally; apical lamella small, rounded triangular, length sub-equal to basal width, apex rounded (Figs 38 View Figures 30–41 , 39 View Figures 30–41 ); apical lamella not twisted with its dorsal surface perpendicular to left surface (Fig. 46 View Figures 42–57 ). Right paramere strongly elongate and curved, the acute angle between basal portion and apical portion near 90°; apex slightly thick, well rounded, not or weakly bent to dorsum (Figs 55-57 View Figures 42–57 ). Endophallus bent to the ventral side of aedeagus, major portion of endophallus located at ventral side of median lobe apex; gp opened to basal-dorsum; gpp large and cap-like, on ventral side of gp; three groups of lobes recognized: rl on ventral-right surface of endophallus, large and rounded, with a papillary projection to the apex of endophallus; lbl on ventral-left surface of endophallus, divided into two clearly separated sub-lobes, the apical one very small, same size as lal, the basal one large, same size as rl; lal on left surface of endophallus, very small and rounded (Figs 40 View Figures 30–41 , 41 View Figures 30–41 ).
Distribution.
Only known from the Liupan Shan mountain range, Jingyuan County, Ningxia Huizu Autonomous Region (Map 3 View Map 3 ).
Etymology.
The name of the new species refers to its type locality, Liupan Shan mountain.
Remarks.
The new species is similar to P. lianhuaensis sp. nov. in having a large body size, black femora, narrow pronotum basal fovea, elytra third interval usually with three pores, but differs from the latter by having: (1) pronotum lateral margins nearly straight before basal angles; and (2) fifth tarsomere glabrous ventrally. In P. lianhuaensis sp. nov., pronotum lateral margins strongly sinuate before basal angles; fifth tarsomere with one or two pairs of setae ventrally. The male genitalia of the new species is very similar to that of P. przewalskyi , with small differences in: (1) ventral margin of aedeagus more distinctly bent downwards near apex in lateral view in P. liupanensis sp. nov. (Fig. 39 View Figures 30–41 ), evenly and gradually bent downwards in lateral view in P. przewalskyi (Fig. 31 View Figures 30–41 ); (2) apical lamella with dorsal surface perpendicular to left surface in P. liupanensis sp. nov., slightly twisted, forming a continuously curved dorsal-left surface in P. przewalskyi ; (3) right paramere more bent forming an acute angle near 90°, versus 100-105° in P. przewalskyi ; (4) endophallus with rl projected to the apex of endophallus and lal present, in P. przewalskyi rl not or slightly projected to the base of endophallus and lal absent.
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