Aphaenogaster baogong

This species inhabits forests, and nests under stones or rotten wood.

Identification
This species has an elongate head and prothorax. It resembles Aphaenogaster wangtian sp. nov. and Aphaenogaster takahashii Wheeler, 1930, but is easily distinguished from the latters by the shape of occiput of head (not constricted).

Distribution based on Regional Taxon Lists
Oriental Region: Taiwan.

Biology
This species inhabits forests, and nests under stones or rotten wood.

Nomenclature

 *  baogong. Aphaenogaster baogong Terayama, 2009: 166, fig.208 (w.) TAIWAN.

Description
Head microreticulate, 1.50 times as long as wide; posterior portion of head behind eyes elongated; CI = 74, CI-II = 67; posterior margin strongly convex in full face view. Clypeus with several longitudinal rugae. Antenna long; scape longer than head lenght; SI = 185, SI-II = 205, scape scattered with short subdecumbent hairs, without long erect or suberect hairs. Eye 0.25 mm in maximum diameter.

Pronotum weakly microreticulate, elongated anteriorly in profile; mesonotum smooth and shining, mesopleuron microreticuate; propodeal spine long and acute, twice as long as its basal width, directed to posterior margin.

Petiole with a long peduncle; node triangular, with dully angulate dorsum. Postpetiole with convex dorsal margin in profile.

Hl 1.45, HW 1.00, HW-II 0.90, SL 1.85, WL .95, PL 0.55, PH 0.31, DPW 0.22, PPL 0.34, PPH 0.30, PPW 0.33, TL 5.5
 * Measurements (mm).

Body brown, gaster dark brown.
 * Color.

Worker, Nanshanxi, Nanfen-Cun, Nantou Pref., 12 viii. 1984, M. Terayama leg.
 * Holotype.

11w, same data as the holotype, 3w, same locality, 3.viii.1981, M.Terayama leg.: 9w, Liukuei, Kaohsiung Pref., 23 VIII. 1987, H. Sakai leg.; 7W,Wushe, Nantou Pref., 23 viii 1987, S. Kubota leg.
 * Paratypes.

Holotype in NIAES, paratypes in NIAES, NSMT and TARI.
 * Type depository.

The specific epithet is the Chinese noun baogong which is the name of a Taiwanese god.
 * Etymology.