Sathytes wuyishanus Yin and Li, 2012

Yin, Zi-Wei, Li, Li-Zhen & Zhao, Mei-Jun, 2012, Taxonomic study on Sathytes Westwood (Coleoptera: Staphylinidae: Pselaphinae) from China. Part I, Journal of Natural History 46 (13 - 14), pp. 831-857 : 852-853

Sathytes wuyishanus Yin and Li , sp. nov.

( Figures 3N , 6B,I , 7N , 8N )

Type material

Holotype. Male, labelled ‘ CHINA: Fujian Prov. / Wuyishan City / Tongmu Village / alt. 800 m / 28 July 2008 / Nan QI and Zi-Wei YIN leg.’.

Paratype. One female, same label data as holotype.

Description

Male. Body reddish brown, mouthparts and tarsi lighter; BL 1.54. Head ( Figure 3N ) much wider than long, HL 0.28, HW 0.36. Vertexal foveae indistinct, posterior edge of foveae located anterior to level of posterior margin of eyes; LE: LP = 1.80: 1. Eyes well developed, large and prominent, each comprises about 15 facets. Antennae with scapes thick and large; pedicels larger than antennomeres III, III–IV subequal in width, V–VI subequal in width, slightly wider than IV, VII–VIII subequal in width, slightly wider than VI, IX–XI ( Figure 6B ) strongly clubbed; semi-membranous apophysis on antennomere IX as in Figure 7N ; antennomere X wider than long, XI ( Figure 6I ) with two truncate basal protuberances, the more basal one covered with tufts of specialized apical setae.

Pronotum about as long as wide, PL 0.35, PW 0.37. Elytra combined wider than long, EL 0.45, EW 0.61. Abdomen wider than long, AL 0.46, AW 0.52; tergite IV three times as long as next. Length of aedeagus ( Figure 8N ) 0.19.

Female. Slightly larger than male; BL 1.74, HL 0.32, HW 0.40, PL 0.41, PW 0.42. Elytra combined wider than long, EL 0.52, EW 0.64, AL 0.50, AW 0.61. Eyes each comprises about 15 facets.

Habitat and distribution

Sifted from the leaf litter of a coniferous broad-leaved forest. East China (Fujian).

Etymology

The species is named after its type locality.

Remarks

This species may be separated from all other Sathytes species by the middle-positioned apophysis of antennomere IX, which is slightly curved and pointed posteriorly.

Figures

Figure 3. Head (left half) of Sathytes spp. (A) Sathytes cristatus; (B) Sathytes excertus; (C) Sathytes larinus; (D) Sathytes longitrabis; (E) Sathytes longwangshanus; (F) Sathytes magnus; (G) Sathytes paulus; (H) Sathytes perpusillus; (I) Sathytes rarus; (J) Sathytes sichuanicus; (K) Sathytes tangliangi; (L) Sathytes tibialis; (M) Sathytes usitatus; (N) Sathytes wuyishanus; (O) Sathytes yunnanicus. Scale bars 0.2 mm.

Figure 6. Details of Sathytes spp. (A–C) antennomeres VIII–XI; (D–J) antennomere IX, enlarged; (A) Sathytes usitatus; (B) Sathytes wuyishanus; (C) Sathytes yunnanicus; (D) Sathytes cristatus; (E) Sathytes paulus; (F) Sathytes perpusillus; (G) Sathytes rarus; (H) Sathytes tibialis; (I) Sathytes wuyishanus; (J) Sathytes yunnanicus. Scale bars: A–C 0.2 mm; D–J 0.05 mm.

Figure 7. Antennomere IX of Sathytes spp. (A) Sathytes cristatus; (B) Sathytes excertus; (C) Sathytes larinus; (D) Sathytes longitrabis; (E) Sathytes longwangshanus; (F) Sathytes magnus; (G) Sathytes paulus; (H) Sathytes perpusillus; (I) Sathytes rarus; (J) Sathytes sichuanicus; (K) Sathytes tangliangi; (L) Sathytes tibialis; (M) Sathytes usitatus; (N) Sathytes wuyishanus; (O) Sathytes yunnanicus. Scale bars 0.2 mm.

Figure 8. Details of Sathytes spp. (A–O) aedeagus; (P) protibia; (A) Sathytes cristatus; (B) Sathytes excertus; (C) Sathytes larinus; (D) Sathytes longitrabis; (E) Sathytes longwangshanus; (F) Sathytes magnus; (G) Sathytes paulus; (H) Sathytes perpusillus; (I) Sathytes rarus; (J) Sathytes sichuanicus; (K) Sathytes tangliangi; (L, P) Sathytes tibialis; (M) Sathytes usitatus; (N) Sathytes wuyishanus; (O) Sathytes yunnanicus. Scale bars 0.1 mm.