Pselaphodes declinatus Yin, Li & Zhao, sp. nov.
Creators: name: Yin, Zi-Wei
name: Li, Li-Zhen
name: Zhao, Mei-Jun
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Pselaphodes
Pselaphodes declinatus

description: Pselaphodes declinatus Yin, Li & Zhao sp. nov.
(Figs. 10, 22, 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) 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) 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) with palpomere I minuscule, II short and pedunculate, II–IV each protuberant on lateral margin. Mandibles (Fig. 128) each with four teeth on mesal margin.
Pronotum longer than wide, coarsely punctured and densely pubescent. Elytra (Fig. 22) covered with long hair. Hind wing (Fig. 86) 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). 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) with median lobe curved and pointed at apex in lateral view; endophallus (Fig. 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.
description: Published as part of Yin, Zi-Wei, Li, Li-Zhen & Zhao, Mei-Jun, 2010, Taxonomical study on the genus Pselaphodes Westwood (Coleoptera: Staphylinidae: Pselaphinae) from China. Part I., pp. 1-25 in Zootaxa 2512 on pages 10-14, DOI: 10.5281/zenodo.294046