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.
С северо-востока Украины описан Macrargus sumyensis Gnelitsa and Koponen, sp. n. Переописаны и детально проиллюстрированы два близких вида рода Macrargus Dahl, 1886: M. boreus Holm, 1968 и M. multesimus (O.-P. Cambridge, 1875).