Guiliani et al. (2019) observed this species foraging on extrafloral nectaries of the invasive Reynoutria x bohemica (Polygonaceae) in Tuscany. The habitats examined were river banks and disturbed habitats.
Seifert and Galkowski (2016) - The species of the Lasius paralienus complex are separable from related species by the combination of low clypeal pubescence distance, low setae numbers on scape and differences in length of maxillary palp segments. Lasius alienus, Lasius psammophilus and Lasius piliferus are the most similar species occurring within the geographic range of the three L. paralienus complex species. L. alienus differs from the other five species by having strongly reduced setae numbers on the metapleuron below the level of the propodeal spiracle. A safe separation of individual workers is possible by a discriminant function considering head width, the length of the terminal maxillary palp segment and clypeal pubescence distance.
Keys including this Species
Seifert and Galkowski (2016) - Lasius paralienus has a European, north meridional to temperate distribution. In the south it ranges from S France (0.7°W) over all of Italy east to Bosnia and Bulgaria (25°E). The main distribution in Central Europe reaches north to about 52.5°N. North of this line only isolated populations are known in Sweden: Södermanland (59.1°N), Öland (56.7°N) and Gotland (57.4°N). In Germany it ascends to 990 m (at 47.9°N) and at the southern slope of the Alps to 1800 m (at 46.8°N).
Distribution based on Regional Taxon Lists
Palaearctic Region: Andorra, Austria, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic, France, Germany (type locality), Greece, Hungary, Iberian Peninsula, Italy, Montenegro, Poland, Republic of Macedonia, Romania, Russian Federation, Slovenia, Spain, Sweden, Switzerland, Turkey.
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- paralienus. Lasius (Lasius) paralienus Seifert, 1992b: 16, figs. 5, 6, 12 (w.q.) GERMANY.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Seifert and Galkowski (2016) - Holotype labelled "Germania: Kr. Bautzen, 2 km S Weißenberg; N066 11.7.1991, leg. Seifert", "Lasius paralienus Seifert Holotypus", "GBIF-D/FoCol 0751 specimen + label data documented"; 4 paratype workers with the same site labelling and "Lasius paralienus Seifert Paratypus"; material stored in Senckenberg Museum für Naturkunde Görlitz. The type locality is situated at 51.1752°N, 14.6551°E and 258 m.
- Bernadou A., Galkowski C., Le Goff A., Fourcassié A., Espadaler X. 2010. First record of Lasius paralienus Seifert, 1992 (Hymenoptera: Formicidae) from France and Andorra. Myrmecological News, 13, 111-113
- Borowiec, L. & Salata, S. 2013. Ants of Greece – additions and corrections (Hymenoptera Formicidae). Genus (Wroclaw) 24, 335-401.
- Giuliani, C., L. Lastrucci, L. Cresti, G. Santini, B. Fogg, and M. M. Lippi. 2019. The morphology and activity of the extrafloral nectaries in Reynoutria x bohemica (Polygonaceae). Plant Biology. 21:975-985. doi:10.1111/plb.13004
- Seifert, B. 1992b. A taxonomic revision of the Palaearctic members of the ant subgenus Lasius s.str. (Hymenoptera: Formicidae). Abh. Ber. Naturkundemus. Görlitz 66(5): 1-67 PDF
- Seifert B., Galkowski C., 2016. The Westpalaearctic Lasius paralienus complex (Hymenoptera: Formicidae) contains three species. Zootaxa, 4132, 44-58.