Psyllipsocus ramburii Selys-Longchamps 1872

Psyllipsocus ramburii Selys-Longchamps, 1872 Ostrovsky, Georgiev, 2020. MATERIAL EXAMINED. Loev district, E of Pervomaisk village, 52°03′34″N, 30°46′25″E, 114 m a.s.l., from a pile of dead bees on the floor of an abandoned house, 27.08.2022, 3♀, 1 nymph, collected by sieving; Gomel city, Auerbakha str., 52°25′49″N, 30°59′12″E, 140 m a.s.l., on the wallpaper in the room, 19.04.2021, 1♀, collected by hand with a wet brush; same locality, in the pantry, 12.06.2021, 1♀, collected by hand with a wet brush; same locality, in the closet, 1.07.2023, 1♀, collected by hand with a wet brush; same locality, on the table, 6.09.2023, 1♀, collected by hand with a wet brush; Khoyniki district, Korchevoe village, 51°55′26″N, 30°03′26″E, 126 m a.s.l., from an abandoned bird's nest inside an abandoned house, 31.07.2023, 1♀, 1 nymph, collected by sieving; Gomel district, N of Borets village, 52°18'15"N, 30°57'25"E, 125 m a.s.l., pine forest, from an abandoned mouse's nest inside an abandoned cellar, 3.09.2023, 1♀, 1 nymph, collected by sieving. DISTRIBUTION. Cosmopolitan species. Known from Poland [Martini, 1975]. NOTES. A small (c. 2.3 – 2.5 mm) parthenogenetic species occurring mainly in houses and caves, tending to be troglophilous. It is polymorphic and occurs in three forms: macropterous, brachypterous, and micropterous.