Myrmica heterorhytida

Workers were found on mountain meadow at the altitude of 3300-4300 m.

Identification
A member of the pachei species group. It resembles Myrmica yunnanensis, but differs from the latter by the curved outwards frontal carinae, which merge with the rugae that surround antennal sockets, by the narrower frons, and by the coarsely and densely punctated, dull surface of the head dorsum between rugae. (Radchenko and Elmes 2010)

Distribution
Yunnan Province

Distribution based on Regional Taxon Lists
Palaearctic Region: China.

Castes
Known only from the worker caste.

Nomenclature

 *  heterorhytida. Myrmica heterorhytida Radchenko & Elmes, 2009a: 83, figs. 61-65 (w.) CHINA. See also: Radchenko & Elmes, 2010: 148.

Etymology
Radchenko and Elmes (2010) - from the Greek words heteros = different or various, and rhytis = wrinkle or ruga, to reflect the various kinds of sculpture on the alitrunk.