Parasyscia nigrita

This rarely encountered species is known from only two specimens from southeastern China.

Identification
Concolorous species, whole body black. Petiole appears square in lateral view, with straight anterior and posterior margins, dorsum slightly convex. Frontal portion of head deeply foveolate-reticulate, posterior portion of head with deep puncta; dorsum of mesosoma with sparse shallow puncta, lateral portion of propodeum deeply foveolate-reticulate.

This species is very similar to Parasyscia browni and Parasyscia dohertyi, but can be separated from them by the combination of the following characters:
 * posterolateral corner of head angular in full-face view
 * posterior portion of head with deep puncta
 * tergite of abdominal segment III with scattered wide and shallow puncta in dorsal view

Distribution based on Regional Taxon Lists
Palaearctic Region: China.

Nomenclature

 * . Parasyscia nigrita Chen, Liang & Du, 2022: 316, fig. 26 (w.) CHINA.

Type Material

 * Holotype worker: CHINA: Guangdong: zhaoqing City, Dinghushan, 193 m, 23.1636° N, 112.1626° E, 11.VII.2005, Yangsha Pan leg., No. GXNU058217 [GXNU].
 * Paratype: same data as holotype [1 worker, GXNU].