The chromosome numbers of the species Formica aquilonia Yarr., Formica uralensis Ruzsk. and Formica pressilabris Nyl. were all found to be n=26. The chromosome number of F. uralensis thus does not accord with the view that this species belongs to be subgenus Serviformica. Chromosomal polymorphism was found in Formica truncorum Fabr., one population having the haploid number n=28, instead of n=26. The chromosome numbers obtained for South Finnish populations of Formica polyctena Foerst., Formica pratensis Retz., Formica lugubris Zett., Formica rufibarbis Fabr. and Formica transkaucasica Nas. were the same as those reported from Central Europe. © 1980 Mendelian Society of Lund
CITATION STYLE
ROSENGREN, M., ROSENGREN, R., & SÖDERLUND, V. (1980). Chromosome numbers in the genus Formica with special reference to the taxonomical position of Formica uralensis Ruzsk. and Formica truncorum Fabr. Hereditas, 92(2), 321–325. https://doi.org/10.1111/j.1601-5223.1980.tb01715.x
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