Polyplax borealis Ferris, 1933

Polyplax borealis Ferris, 1933: 127 .

Records in Baltic States: Latvia (Lapina 1959; Grinbergs 1961d; 1980b), Lithuania (Arnastauskienė et al. 1989).

Hosts: S. araneus (LV), A. flavicollis (LV, LT), C. glareolus (LV, LT) .

European distribution: Belarus, Hungary, Norway, Poland, Russia (Brinck 1950; Blagoveshchensky 1964;

Beaucournu 1968; Cais 1977; Vas et al. 2012).