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Throughout its entire range it is associated with meadows bordering rivers and lakes. it is particularly abundant in the longer vegetation at the edges of water meadows used for haymaking and grazing. rubra is often very abundant in grass on forest, woodland and hedgerow edges, and in Germany, Poland and France etc. In eastern Europe (Russia, Ukraine etc.) it is considered to be more of a forest species inhabiting many different kinds of forests (except those with light, dry soils), where it builds nests in the soil under moss and in or under rotten wood. These sites often have high rainfall and the moisture is held in the heavy soils. In western Europe it is considered to be a species of damp meadows and is rarely found in woods and forests, the largest populations usually occur on west-facing slopes with heavy clayey (often limestone) soils, where it builds nests in the soil and under flat stones. However, it is seldom found living in tussocks on true bogs, in the manner of some populations of M. It thrives in damp habitats, especially soils with high water tables or habitats in areas of high rainfall. rubra is a eurytopic species distributed widely throughout Europe and West Siberia where it can dominate some habitats. Palaearctic Region: Andorra, Armenia, Austria, Belarus, Belgium, Bulgaria, China, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Georgia, Germany, Greece, Hungary, Iberian Peninsula, Japan, Jersey, Kyrgyzstan, Latvia, Liechtenstein, Lithuania, Luxembourg, Mongolia, Montenegro, Netherlands, Norway, Poland, Republic of Macedonia, Republic of Moldova, Romania, Russian Federation, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom of Great Britain and Northern Ireland. Latitudinal Range: 70.377854° to 38.983611°.ĭistribution based on Regional Taxon Lists Key to Myrmica of the Middle Asian MountainsĮurope (in the south mostly in mountains), Siberia, to the east until Transbaikalia, to the north until Forest-Tundra Zone in Transcaucasus and Middle Asian mountains is quite rare introduced in northeastern and northwestern United States and western Canada.Key to Myrmica of species of East Siberia, Russian Far East, Mongolia, Korean Peninsula, northern China, and Japan.Key to Myrmica of West Europe and North Africa.Key to Myrmica of East Europe, West Siberia, northern Kazakhstan, Caucasus, Asia Minor, Turkmenistan and Iran.kotokui in petiolar morphology, the name Myrmica rubra is applied to them for the present. Although Japanese specimens differ morphologically from European M. kotokui its propodeal spines are shorter, and the rugae on the anterior basal portion of the 1st gastral tergite are relatively weak and fewer in number. rubra has fewer strong rugae, and is more smooth on the lower half of the mesonotal pleura than M. It is best in the field to examine the body coloration of a number of workers from each colony. However, the unraised rugae on the posterodorsal portion of the mesonotum are usually characteristic, though some M. This species closely resembles Myrmica kotokui, and is at times difficult to distinguish, due to variation in morphology and color in M. Head Index: 79.5 Frons Index: 49.4 Frontal Laminae Index: 92.7. Petiole node with short indistinct dorsal area sloping evenly without definite break to its junction with the postpetiole. Sculpture dilute frontal triangle and subspinal areas smooth and shining. Photo by Michal Kukla.Ī member of the rubra group. Myrmica rubra, macrogyne, microgyne and worker. In Japan, it nests in the soil of grassland on seashores and lowlands (Onoyama, 1989) rarely encountered ( Japanese Ant Image Database). It is unusual in being an invasive species in temperate habitats most ants that have spread by human activities occur and are spread in tropical and subtropical areas. Myrmica rubra neolaevinodis Forel, 1901Ī widely distributed, common European species that has been introduced in the northeastern and northwestern United States and western Canada.