Myrmica gebaueri

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Myrmica gebaueri
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Myrmicini
Genus: Myrmica
Species group: tibetana
Species complex: tibetana
Species: M. gebaueri
Binomial name
Myrmica gebaueri
Seifert, Schltz, Ritz & Ritz, 2018

Found on montane to subalpine grassland, usually pastures. Nests in soil, under stones or in grass tussocks. Polygynous.

Identification

The separation of Myrmica gebaueri and M. tibetana is most difficult and a safe discrimination on the worker individual level is only possible by the multivariate analyses described by Seifert et al. (2018). Compared to M. tibetana, M. gebaueri shows smaller eyes and longer and more diverging propodeal spines. A parsimonious morphometric method allows a determination on nest sample level if two or three workers per sample are measured. We simplified the species delimitation procedure by using absolute linear measurements and by reducing the number of characters for the condition that the error at nest sample level was zero. We emphasize at this point that the measuring instructions for each character have to be considered. The extracted morphometric method requires five minutes working time in a mounted specimen. With all measurements recorded in mm, a linear discriminant function

D(3) = 62.835 EYE + 44.41 SPBA - 50.213 SP - 15.713

resulted in an error of 0% on the nest sample level. Samples with D(3) < 0 are classified as Myrmica gebaueri, those above this threshold as M. tibetana. The error on the worker individual level was 5.6% in 126 specimens.

The easy separation from Myrmica bactriana, the three species of the M. smythiesii complex (Myrmica fortior, Myrmica smythiesii, Myrmica wittmeri) and from Myrmica tenuispina has been treated in the section considering possible synonymies in Seifert et al. (2018).

Distribution

NE Tibet between 35.5 and 38.0° N and 99.8 and 102.8° E, in altitudes of 2900 - 3500 m.

Distribution based on type material

Tibet (type locality).


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • gebaueri. Myrmica gebaueri Seifert et al., 2018: 105, figs. 7-11 (w.) TIBET.

Type Material

Description

References