Pselaphodes declinatus 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 : 10-14

publication ID	https://doi.org/ 10.5281/zenodo.294046
DOI	https://doi.org/10.5281/zenodo.6196794
persistent identifier	https://treatment.plazi.org/id/03BE527D-FFB9-B53B-FF55-9367B558F9E2
treatment provided by	Plazi
scientific name	Pselaphodes declinatus Yin, Li & Zhao
status	sp. nov.

Treatment

Pselaphodes declinatus Yin, Li & Zhao View in CoL sp. nov.

( Figs. 10 View FIGURES 9 – 12 , 22 View FIGURES 13 – 24 , 44, 45, 46, 71, 72, 82, 83, 86, 99, 120, 121, 128, 147, 172, 173, 186)

Type material. Holotype: CHINA: Zhejiang Prov.: 3, Fengyangshan Mt. (27°57’34”N 119°14’53”E), elev. 1,520 m, Shi-You Ma & Sheng-Long Liu leg., 11.xi.2007 ( SIPPE).

Description. Male. Body ( Fig. 10 View FIGURES 9 – 12 ) brown, elytra reddish-brown, maxillary palpi and tarsi lighter in color; body length 3.58 mm, combined width of elytra 1.32 mm.

Head about as long as wide, frontal margin anterior to eyes narrowed toward apex. Antenna ( Fig. 99 View FIGURES 90 – 101 ) covered by short pubescence, with scape elongate and weakly expanded, three times as long as wide and as long as next three segments combined, lateral side with a large elongate sensory fovea, antennomeres II–IV subequal in length, V slightly longer than IV, VI 1.5 times as long as IV, VII nearly quadrate, asymmetrical expanded on inner side, VIII quadrate, nearly symmetrical, about as long as pedicel, IX–X strongly modified, IX similar to that of P. walkeri but broader and not pointed at apex, X as long as wide, extremely curved mesally on inner side, XI elongate, 1.5 times as long as X, somewhat rounded at apex. Maxillary palpus ( Fig. 147 View FIGURES 138 – 149 ) with palpomere I minuscule, II short and pedunculate, II–IV each protuberant on lateral margin. Mandibles ( Fig. 128 View FIGURES 126 – 137 ) each with four teeth on mesal margin.

Pronotum longer than wide, coarsely punctured and densely pubescent. Elytra ( Fig. 22 View FIGURES 13 – 24 ) covered with long hair. Hind wing ( Fig. 86 View FIGURES 86 – 89 ) fully developed, widest in the middle, narrowed at apex. Mesoventral lateral fovea, mesoventral median fovea and metaventral lateral fovea well defined; two relatively short basal metaventral processes ( Figs. 82, 83 View FIGURES 78 – 85 ). Fore legs (Fig. 71) with trochanters and femora each having a big spine on posterior margin, mesotrochanters (Fig. 72) and femora each with a small apical spine.

Abdomen (Figs. 44–46) with tergite IV about twice as long as V, tergite VIII (Fig. 121) slightly transverse, emarginate at apex, sternite VIII (Fig. 120) narrowed at apex, emarginate medially.

Aedeagus ( Figs. 172, 173 View FIGURES 162 – 173 ) with median lobe curved and pointed at apex in lateral view; endophallus ( Fig. 186 View FIGURES 174 – 186 ) with a very long and elongate spine, constricted throughout length, pointed at apex; parameres paired, short and almost symmetrical, each with two setae at apex, basal plate of parameres lobed, each half gradually narrowed toward apex.

Female unknown.

Remarks. This species is characteristic in its remarkable antennal club with unique modification (see description of the species), short median metaventral processes, and unique shape of the aedeagus.

FIGURES 52–63. Fore (Figs. 52, 54, 56, 58, 60, 62) and middle (Figs. 53, 55, 57, 59, 61, 63) legs of Pselaphodes . 52, 53— P. walkeri (Sharp) ; 54, 55— P. miraculum sp. nov.; 56, 57 — P. nomurai sp. nov.; 58, 59— P. torus sp. nov.; 60, 61— P. cornutus sp. nov.; 62, 63 — P. wuyinus sp. nov. Scale bars: 0.5 mm.

FIGURES 64–77. Fore (Figs. 64, 66, 68, 71, 73, 75), middle (Figs. 65, 67, 69, 72, 74, 76) and hind (Figs. 70, 77) legs of Pselaphodes . 64, 65— P. tianmuensis sp. nov.; 66, 67— P. hlavaci sp. nov.; 68–70— P. aculeus sp. nov.; 71, 72— P. declinatus sp. nov.; 73, 74 — P. latilobus sp. nov.; 75–77— P. subtilissimus sp. nov. Scale bars: 0.5 mm.

Distribution. China (Zhejiang Province).

Etymology. The species name is a participle derived from the Latin verb " declino " ("to turn away, deviate") and refers to the strange shape of antennal club.

FIGURES 102–125. Ventrite VIII (Figs. 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122 and 124) and tergite VIII (Figs. 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123 and 125) of Pselaphodes . 102, 103 — P. walkeri (Sharp) ; 104, 105 — P. miraculum sp. nov.; 106, 107 — P. nomurai sp. nov.; 108, 109 — P. torus sp. nov.; 110, 111 — P. cornutus sp. nov.; 112, 113 — P. wuyinus sp. nov.; 114, 115 — P. tianmuensis sp. nov.; 116, 117 — P. hlavaci sp. nov.; 118, 119 — P. latilobus sp. nov.; 120, 121 — P. declinatus sp. nov.; 122, 123 — P. aculeus sp. nov.; 124, 125 — P. subtilissimus sp. nov. Scale bars: 0.5 mm.