Pselaphodes nomurai Yin, Li & Zhao

Yin, Zi-Wei, Li, Li-Zhen & Zhao, Mei-Jun, 2010, Taxonomical study on the genus Pselaphodes Westwood (Coleoptera: Staphylinidae: Pselaphinae) from China. Part I., Zootaxa 2512, pp. 1-25: 21

publication ID

http://doi.org/ 10.5281/zenodo.294046

persistent identifier

http://treatment.plazi.org/id/03BE527D-FFA4-B522-FF55-94CEB01EF9B0

treatment provided by

Plazi

scientific name

Pselaphodes nomurai Yin, Li & Zhao
status

sp. nov.

Pselaphodes nomurai Yin, Li & Zhao  sp. nov.

( Figs. 4View FIGURES 1 – 4, 15View FIGURES 13 – 24, 29, 30, 56, 57, 78, 79, 87, 92, 106, 107, 134, 140, 154, 155, 185)

Type material. Holotype: CHINA: Shanxi Prov.: 3, Foping Count. (33 ° 31 ’ 28 ”N 107 ° 59 ’ 26 ”E), elev. 1,250–1,400 m, Jia-Yao Hu, Liang Tang & Li-Long Zhu leg., 18.vii. 2004. Paratypes: CHINA: Shanxi Prov.: 833, 9 ƤƤ, same data as holotype; 633, 6 ƤƤ, Chongqing City, Chengkou Count., East Dabashan Mt. (31 ° 56 ’ 51 ”N 108 ° 39 ’ 52 ”E), lower Huangangou, elev. 2,039 m, Hao Huang & Wang Xu leg., 22–23.viii. 2008; 1633, 23 ƤƤ, Qinling, Huoditang Linchang, elev. 1,724 m, Hao Huang & Wang Xu leg., 24–25.v. 2008; 3033, 43 ƤƤ, Zhouzhi Count., Qinling, Houzhenzi, West Sangongli Gou, elev. 1,336 m, Hao Huang & Wang Xu leg., 17–19.v. 2008; 1333, 18 ƤƤ, same data as above, but elev. 1,820m, 5–10.v. 2008; 1333, 14 ƤƤ, same data as above, but elev. 1,260m; 333, Taibai Mt., elev. 1,450 m, Jia-Yao Hu & Liang Tang leg., 15.vii. 2004; Henan Prov.: 3 33, Funiushan Mt. (35 ° 14 ’ 37 ”N 112 ° 59 ’ 48 ”E), elev. 1,400–1,700 m, Jia-Yao Hu, Liang Tang & Li-Long Zhu leg., 2.viii. 2004 (all SHNUC).

Description. Male. Body ( Fig. 4View FIGURES 1 – 4) reddish-brown, abdomen darker, maxillary palpi and tarsi lighter in color; body length 3.49–3.54 mm, combined width of elytra 1.30–1.33 mm.

Head about as long as wide, frontal margin anterior to eyes straight. Antenna ( Fig. 92View FIGURES 90 – 101) with scape very long, three times as long as wide and three times as long as next antennomere, antennomeres from pedicel to antennomere VI about equal in length, VII elongate, longer than VI, VIII shorter than VII, but slightly longer than VI, IX –XI strongly modified, IX similar to that of P. walkeri  , but with apex forming a spine, antennomere X as long as IX, similar to that of P. miraculum  , but more curved medially, XI large, strongly pedunculate, with apical half distinctively enlarged. Maxillary palpus ( Fig. 140View FIGURES 138 – 149) similar to that of P. walkeri  , with basal part of segment II slightly expanded. Mandibles ( Fig. 134View FIGURES 126 – 137) most similar to those of P. walkeri  .

Pronotum as long as wide, coarsely punctured and densely pubescent, with anterior one-fourth of lateral sides angulate. Elytra ( Fig. 15View FIGURES 13 – 24) most similar to those of P. walkeri  . Hind wing ( Fig. 87View FIGURES 86 – 89) much smaller and slenderer than in P. miraculum  . Legs long and slender, protrochanter (Fig. 56) with a pin-like apical spine, profemur strongly thickened near middle, with a large apical spine, mesotrochanter (Fig. 57) elongate, with three minute protuberances, mesofemur without spines, hind legs not armed. Abdomen (Figs. 29, 30) with tergite IV transverse, more than twice as long as next, tergite VIII (Fig. 107) and sternite VIII (Fig. 106) similar to those of P. cornutus  , but sternite VIII with basal half slightly more straight. Metaventrite ( Figs. 78, 79View FIGURES 78 – 85) with two horn-like processes that are broadened and rounded at apices.

Aedeagus ( Figs. 154, 155View FIGURES 150 – 161) most similar to that of P. miraculum  , but with median lobe less expanded near apex; endophallus ( Fig. 185View FIGURES 174 – 186) with three erect spines, left one shortest and median one longest, both well sclerotized at apex; all three spines curved right; parameres paired and almost symmetrical, with basal spine very elongate.

Female. Slightly smaller than male, similar in shape, basal metaventral process absent.

Remarks. This species is characterized by the pronotum with the lateral margins angulate at apical onefourth; antennal club uniquely modified and aedeagus with median lobe less expanded.

Distribution. China (Shanxi and Henan Provinces).

Etymology. We are happy to dedicate the specific name to Dr. Shûhei Nomura ( Japan) for his continuous encouragement and guidance. The species name is a noun in the genitive case.