Myrmica spinosior

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Myrmica spinosior
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Myrmicini
Genus: Myrmica
Species group: sabuleti
Species: M. spinosior
Binomial name
Myrmica spinosior
Santschi, 1931

Myrmica spinosior P casent0280840.jpg

Myrmica spinosior D casent0280840.jpg

Specimen Label

Radchenko and Elmes (2010) - From our observations to date the ecology and biology of M. spinosior is very similar to that of Myrmica sabuleti. It usually builds nests under stones or in the soil, in mountain grassland pastures at about 1000-2000 m. Colonies can vary from a few hundred to a thousand or more workers with several functional queens. Sexuals are in the nest in August and nuptial flights probably take place at the same time as those as M. sabuleti. In our experience there is no reason to think that M. spinosior is an ecological variant of M. sabuleti (e.g. Myrmica lonae) that is more thermophilic than M. sabuleti, we are more inclined to the opinion that it is derived from a separate lineage isolated during one of the more recent glaciations with a considerable overlap of range and possible hybridisation (see notes to M. lobicornis and M. obscura).


Radchenko and Elmes (2010) - A member of the sabuleti complex of the scabrinodis species group that most resembles [[Myrmica sabuleti from which it well differs by its distinctly wider frons (similar to or even wider than in Myrmica scabrinodis (mean FI 0.37 vs. 0.33 in M. sabuleti). However, M. spinosior differs from M. scabrinodis by the less extended frontal lobes (mean FLI l.33 VS. l.42 respectively).

Keys including this Species


Distribution based on Regional Taxon Lists

Palaearctic Region: Andorra, France (type locality), Iberian Peninsula, Italy, Spain.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb



This species is a host for the fungus Rickia wasmannii (a pathogen) (Espadaler & Santamaria, 2012).



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

  • spinosior. Myrmica sabuleti var. spinosior Santschi, 1931a: 3 (w.q.m.) FRANCE. [Also described as new by Santschi, 1931b: 346.] Junior synonym of sabuleti: Seifert, 1988b: 31; Casevitz-Weulersse, 1990a: 137. Revived from synonymy and raised to species: Seifert, 2005: 7. See also: Radchenko & Elmes, 2010: 289.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.



Radchenko and Elmes (2010) - from the Latin word spinosus (thorn) with the adjectival comparative suffix ior giving spinosior = thornier, to describe the relatively longer propodeal spines of this species.