Key to Myrmica of the Tibetan Plateau

This worker key is based on: Radchenko, A.G. & Elmes, G.W. 2010. Myrmica ants of the Old World. Fauna Mundi 3: 1-789.

1

 * Frontal carinae strongly curved at their anterior third, frontal lobes strongly extended, wide and subsquare, FLI > 1.20. - Tibet . . . . . Myrmica tibetana


 * Frontal carinae feebly curved along whole length, frontal lobes not extended, relatively narrow, FLI < 1.15 . . . . . 2

2
return to couplet #1
 * Big and robust species, HW > 1.10, AL > 1.75 mm. Petiole with very short peduncle (mean PI1 1.11), its anterior face steep, straight or at most very slightly concave. - Tibet, Himalaya . . . . . Myrmica kozlovi


 * Smaller and more slender species, HW < 0.95, AL < 1.55 mm. Petiole with very distinct peduncle (species' means PI1 1.29...1.32), its anterior face distinctly concave . . . . . 3

3
return to couplet #2
 * Scape longer (SI2 ≥ 0.93), with more abundant suberect hairs. - Tibet . . . . . Myrmica bactriana


 * Scape somewhat shorter (SI2 ≤ 0.91), with less abundant subdecumbent hairs. - Tibet . . . . . Myrmica ruzskyana