Anchocerus yini Hu & Li

Hu, Jiayao, Li, Lizhen & Zhao, Meijun, 2012, Three new species of Anchocerus Fauvel (Coleoptera: Staphylinidae: Staphylininae), with an updated key to Chinese species, Zootaxa 3318, pp. 57-62 : 61-62

Anchocerus yini Hu & Li , sp. nov.

( Figs. 14–19 )

Type material. Holotype: CHINA: male, Yunnan Prov., Jinghong City, Nabanhe Nature Reserve, Benggangxinzhai, alt. 1,850 m, 4-V-2009, HU Jia-Yao & YIN Zi-Wei leg.

Description. BL: 6.2 mm, FL: 3.1 mm.

Body ( Fig. 14 ) reddish brown; head and elytra darker.

Head longer than wide (HL/HW=1.12), vaguely dilated behind eyes. Temples 2.59 times as long as eyes. Dorsal macrosetae (one side only): one near antennal base; one medially between eyes; one postero-medially, closer to neck constriction than to posterior margin of eye; one medially near neck constriction; two laterally on temple, of which one near posterior margin of eye, one near neck constriction. Surface scattered with extremely fine non-setiferous punctation, which becoming coarser between eyes. Antennae slender; relative length of antennomeres (from I to XI, each measured from base to apex): 53.0: 27.0: 14.0: 12.0: 12.0: 11.0: 11.0: 11.0: 11.0: 11.0: 15.0; relative width of antennomeres (from I to XI, maximal width: 11.5: 7.0: 6.0: 7.0: 7.5: 9.0: 9.5: 11.0: 12.0: 12.0: 11.0.

Pronotum about as long as wide, longer (PL/HL=1.31) and wider (PW/HW=1.50) than head; with punctation much finer than those on head. Dorsal macrosetae (one side only): One medial and two lateral.

Elytra with dense and coarse punctation and brown setae, shorter than wide (EL/EW=0.95), slightly longer (EL/PL=1.06) and wider (EW/PW=1.09) than pronotum. Wings well developed. Scutellum with punctation and setae similar to those on elytra.

Abdomen with coarse punctation except for median part of tergite II; tergite VII with whitish apical seam; tergites without microsculpture.

Legs densely covered with brown setae, all tibiae with lateral spines.

Male. Sternite IX ( Fig. 15 ) long and slender, slightly emarginate medio-apically, with numerous long setae at apical portion; tergite X ( Fig. 16 ) gradually narrowed apically, with several long setae situated at apical and lateral margins. Aedeagus ( Figs 17–19 ) with median lobe very long and narrowed apically; paramere narrow and short, distinctly shorter than median lobe; with some very short apical and lateral setae, without sensory peg setae.

Female. Unknown.

Distribution. The species is known only from the type locality in Yunnan, Southwest China.

Remarks. The new species is close to A. schuelkei Smetana, 2005 , from which it differs by the head being longer than wide, the temples being more than 2.5 times as long as eyes, the pronotum having two lateral macrosetae at each side, and the aedeagus having longer paramere.

Etymology. The species is named in honor of YIN Zi-Wei, who collected the holotype.

Figures

FIGURES 14 – 19. Anchocerus yini sp. nov. 14 — habitus; 15 — male sternite IX; 16 — male tergite X; 17 — aedeagus, in ventral view; 18 — same, in lateral view; 19 — paramere, in ventral view. Scale bars: a = 2 mm, b = 0.5 mm.