Pselaphodes shii

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Taxonavigation

Ordo: Coleoptera
Familia: Staphylinidae
Genus: Pselaphodes

Name

Pselaphodes shii Yin & Li sp. n. – Wikispecies link – Pensoft Profile

Type locality

China, Hainan Province, Jianfengling Natural Reserve

Type material

(2 ♂♂). HOLOTYPE: ♂, labeled ‘CHINA: Hainan Prov. / Ledong County / Jianfengling N. R. / Yulingu, river bank / 18.74686°N, 108.92988°E / ca. 635, 20.iii.2007 / H.L. Shi, F. Yuan leg. // [red] HOLOTYPE / Pselaphodes shii Yin & Li / det. 2012, SNUC’. PARATYPE: 1 ♂, labeled ‘CHINA: Hainan Prov / Yinggeling, Nankai / Daoyin–Mohao / ca. 335 m, 15.iv.2010 / 19.01021°N, 109.36910°E / Mei-Ying Lin leg. // [yellow] PARATYPE / Pselaphodes shii Yin & Li / det. 2012, SNUC’.

Diagnosis

Reddish brown; medium-sized; postocular margins rounded; antennomeres IX strongly modified; pronotum angularly expanded laterally; with robust and long metaventral processes (in lateral view); aedeagus with asymmetric median lobe and long parameres.

Description

Male (Fig. 3). Length 2.85–2.95. Head as long as wide, HL 0.56–0.60, HW 0.58–0.59; genae rounded; eyes large, each composed of about 40 facets. Antennal clubs as in Fig. 4A. Pronotum (Fig. 4B) almost as long as wide, PL 0.55–0.56, PW 0.57–0.58, with angulate anterolateral margins. Elytra wider than long, EL 0.81–0.84, EW 1.07–1.10. Metaventral horn-like processes long (Fig. 2G). Legs having protibiae with blunt and slightly serrate apical projection (Figs 2C, D); mesotrochanters with distinct ventral spine (Fig. 2E); metatrochanters with long, apically blunt spine (Fig. 2F). Abdomen large, AL 0.93–0.95, AW 1.08–1.12. Sternite IX as in Fig. 2H. Aedeagus length 0.59; with broad asymmetric median lobe and elongate parameres (Figs 4I–K).
Female. Unknown.

Distribution

South China: Hainan.

Comparative notes

This species is placed close to Pselaphodes bomiensis, Pselaphodes condylus and Pselaphodes jizushanus Yin et al., 2011 by sharing a similar placement of the antennal modification and projected anterolateral margins of the pronotum. It can be readily separated from Pselaphodes bomiensis and Pselaphodes condylus by the much smaller size and different form of the antennomeres IX, from Pselaphodes jizushanus by the metaventral processes being slightly curved posteriorly, the metatrochanters being protuberant ventrally and the metatibiae being simple. Pselaphodes jizushanus has the metaventral processes being curved anteriorly, the metatrochanters are simple, and the metatibiae are bluntly projected at apical 1/5.

Etymology

The species is named after Hong-Liang Shi for the collection of the holotype.

Identification key

The latest key to the Chinese Pselaphodes (Yin et al. 2012: 36) is modified as the following to include the two new species described in the present paper.

Identification key — Z. Yin , L. Li , M. Zhao

11		Metatibiae modified in apical half (Fig. 2G; Yin et al. 2010: 11, Fig. 59; 12, Fig. 70; Yin et al. 2011: 467, Fig. 8)    12
–		Metatibiae simple    14
12		Protibiae with median or apical projection    13a
–		Protibiae lacking projection. (Yunnan)    Pselaphodes jizushanus Yin, Li & Zhao, 2011
13a		Protibiae with projection near middle (Yin et al. 2010: 6, Fig. 11). (Anhui, Yunnan, Hainan)    Pselaphodes aculeus Yin, Li & Zhao, 2010
–		Protibiae with projection at apex    13
13		Body black (Yin et al. 2010: 4, Fig. 3); antennomeres X slightly transverse (Yin et al. 2010: 13, Fig. 93). (Qinghai)    Pselaphodes torus Yin, Li & Zhao, 2010
–		Body reddish brown (Fig. 1); antennomeres X much longer than wide (Fig. 2-A). (Hainan)    Pselaphodes linae Yin & Li, sp. n.
14		Metacoxae protuberant    15
–		Metacoxae simple    16
15		Elytra with two pairs of discal humps (Yin et al. 2011: 466, Fig. 6). (Yunnan)    Pselaphodes gongshanensis Yin, Li & Zhao, 2011
–		Elytra lacking discal humps (Yin et al. 2012: 32, Fig. 2). (Guangxi)    Pselaphodes hui Yin & Li, 2012
16		Mesofemora simple (Yin et al. 2011: 472, Fig. 68; Yin et al. 2010: 12, Fig. 76)    17
–		Mesofemora with tiny admesal spine (Yin et al. 2010: 11, Fig. 61). (Henan)    Pselaphodes cornutus Yin, Li & Zhao, 2010
17		Protrochanters simple (Yin et al. 2010: 12, Fig. 70)    17a
–		Protrochanters with distinct ventral spine (Yin et al. 2011: 471, Fig. 51). (Guizhou, Guangxi)    Pselaphodes condylus Yin, Li & Zhao, 2010
17a		Large-sized (3.4 mm); antennae and legs conspicuously elongate (Yin et al. 2010: 6, Fig. 12); meso- and metatrochanters simple (Yin et al. 2010: 12, Fig. 76–77). (Yunnan)    Pselaphodes subtilissimus Yin, Li & Zhao, 2010
–		Medium-sized (less than 3 mm); antennae and legs normally elongate (Fig. 3); meso- and metatrochanters spinose (Figs 4E, F). (Hainan)    Pselaphodes shii Yin & Li, sp. n.

Original Description

• Yin, Z; Li, L; Zhao, M; 2012: Two new species of Pselaphodes Westwood and new record of Taiwanophodes minor Hlaváč from South China (Coleoptera, Staphylinidae, Pselaphinae) ZooKeys, 175: 75-86. doi

Images

Figure 1. Habitus of Pselaphodes linae. Scale: 1.0 mm.  Figure 2. Details of male Pselaphodes linae. A right antennal club B pronotum C protibia D apex of protibia, enlarged E mesotrochanter and mesofemur F metatrochanter and metafemur G metatibia H metaventral process, in lateral view I sternite IX J aedeagus, in lateral view K–L same, in dorsal view. Scales: A, B, C, E, F, G = 0.3 mm, H, I = 0.1 mm, D = 0.05 mm, J, K, L = 0.2 mm.  Figure 3. Habitus of Pselaphodes shii. Scale: 1.0 mm.  Figure 4. Details of male Pselaphodes shii. A left antennal club B pronotum C protibia D apex of protibia, enlarged E mesotrochanter and mesofemur F metatrochanter and metafemur G metaventral process, in lateral view H sternite IX I aedeagus, in lateral view J–K same, in dorsal view L right paramere, enlarged. Scales: A, B, C, E, F = 0.3 mm, D = 0.05 mm, G, H = 0.1 mm, L = 0.025 mm, I, J, K = 0.2 mm.