Pselaphodes cornutus 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 : 9-10

publication ID	https://doi.org/ 10.5281/zenodo.294046
DOI	https://doi.org/10.5281/zenodo.6196792
persistent identifier	https://treatment.plazi.org/id/03BE527D-FFB8-B53F-FF55-95C4B5D7F93A
treatment provided by	Plazi
scientific name	Pselaphodes cornutus Yin, Li & Zhao
status	sp. nov.

Treatment

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

( Figs. 5 View FIGURES 5 – 8 , 17 View FIGURES 13 – 24 , 33, 34, 60, 61, 80, 81, 94, 110, 111, 132, 142, 158, 159, 183)

Type material. Holotype: CHINA: Henan Prov.: 3, 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. Paratypes: CHINA: Henan Prov.: 10ƤƤ, same data as holotype (all SHNUC).

Description. Body ( Fig. 5 View FIGURES 5 – 8 ) reddish-brown, abdomen slightly darker, maxillary palpi and tarsi lighter in color; body length 3.74 mm, combined width of elytra 1.41 mm.

Head longer than wide, frontal margin anterior to eyes narrowed toward apex. Antenna ( Fig. 94 View FIGURES 90 – 101 ) long and slender, with scape more than three times as long as pedicle, about three times as long as wide, antennomeres from pedicel to antennomere IV equal in length, V longer than IV, VI longer than V, VII shorter than VI, but longer than V, antennomere VIII about as long as pedicel, IX–XI forming a club, IX elongate, narrowed at base, expanded toward apex, antennomere X similar to IX, but much smaller, XI straight at base, expanded near middle, narrowed at apex. Maxillary palpus ( Fig. 142 View FIGURES 138 – 149 ) with segment I tiny, II pedunculate, III nearly triangular, IV elongate and nearly fusiform, II–IV each protuberant on outer side. Mandibles ( Fig. 132 View FIGURES 126 – 137 ) each with four teeth on mesal margin.

FIGURES 25–36. Abdomen of Pselaphodes , dorsal (Figs. 25, 27, 29, 31, 33, 35) and ventral (26, 28, 30, 32, 34, 36) views. 25, 26— P. walkeri (Sharp) ; 27, 28— P. miraculum sp. nov.; 29, 30— P. nomurai sp. nov.; 31, 32— P. torus sp. nov.; 33, 34— P. cornutus sp. nov.; 35, 36— P. wuyinus sp. nov. Scale bars: 0.5 mm (a,c), 0.3 mm (b,d,e,f).

FIGURES 37–51. Abdomen of Pselaphodes , dorsal (Figs. 37, 39, 42, 44, 47, 49), ventral (Figs. 38, 41, 43, 46, 48, 51) and lateral (Figs. 40, 45, 50) view. 37, 38— P. tianmuensis sp. nov.; 39, 40, 41— P. subtilissimus sp. nov.; 42, 43— P. latilobus sp. nov.; 44, 45, 46— P. declinatus sp. nov.; 47, 48— P. hlavaci sp. nov.; 49–51— P. aculeus sp. nov. Scale bars: 0.3 mm (a–e); 0.5 mm (f).

Pronotum almost quadrate, slightly longer than wide, narrowed toward apical margin. Elytra ( Fig. 17 View FIGURES 13 – 24 ) narrowed at base, each with three basal foveae, covered with long hair at apex,. Metaventrite ( Figs. 80, 81 View FIGURES 78 – 85 ) with two long horn-like processes narrowed toward apex in lateral view. Legs (Figs. 60, 61) long and slender, protrochanters, profemora, mesotrochanters, and mesofemora each with a spine.

Abdomen (Figs. 33–34) with tergite IV twice as long as V, two ribs reaching one-third of tergal length; tergite VIII (Fig. 111) slightly transverse, narrowed at apex and slightly emarginated in the middle, sternite VIII (Fig. 110) strongly emarginate apically.

Aedeagus ( Figs. 158, 159 View FIGURES 150 – 161 ) with median lobe broadened throughout length in lateral view, curved leftward at apex in dorsal view; endophallus ( Fig. 183 View FIGURES 174 – 186 ) with three spines, dorsal one longest, remaining two stout and acute at apex; parameres paired, almost symmetrical.

Female. Similar to male, but metaventral horn-like processes absent.

Remarks. This species is characterized by the unique shape of the antennal club, and can be readily identified by the aedeagus with the median lobe expanded throughout length.

Distribution. China (Henan Province).

Etymology. The species name is an adjective (" cornutus " (Latin) means "horned") and refers to the long basal metaventral processes.