Myrmica yunnanensis

The two type workers were found on mountain meadow at 3300 m.

Identification
Radchenko and Elmes (2010) - A member of the pachei species group. It is characterized by the following combination of the main diagnostic features, which distinguish it from the other species of this group: pronotum with dense though not coarse reticulation; mesonotal and propodeal dorsum with quite dense though not coarse, transversal sinuous rugae numbering > 25; the head margins with numerous long erect to suberect hairs; the head distinctly elongate (CI > 1.20), suboval, with barely marked occipital corners; the frontal carinae do not curve outwards and do not merge with the rugae that surround antennal sockets; surface of head dorsum between rugae appears shiny, only with very fine superficial micropunctures.

Distribution
Known only from the type locality in the Yunnan Province, China.

Distribution based on Regional Taxon Lists
Palaearctic Region: China.

Castes
Known only from the worker caste.

Nomenclature

 *  yunnanensis. Myrmica yunnanensis Radchenko & Elmes, 2009a: 82, figs. 56-60 (w.) CHINA. See also: Radchenko & Elmes, 2010: 329.

Type Material
Holotype, w, China, N YunnanProv., Zhongdian, 3300 m, 6-8.vii.2002, leg. S. Murzin and I. Shokhin (Petersburg); paratype: 1 w with the same label as holotype (Kiev).

Etymology
The species is named after the Yunnan Province of China, where it was found.