DOI: https://doi.org/10.2478/v10058-010-0019-5
Macrargus sumyensis Gnelitsa et Koponen, sp. n. is described from the North-East of Ukraine. Two closely related species of the genus Macrargus Dahl, 1886, Macrargus boreus Holm, 1968 and M. multesimus (O.-P. Cambridge, 1875), are redescribed and illustrated in detail.