Megabothris walkeri (Rothschild, 1902) Ceratophyllus walkeri Rothschild, 1902: 225. Records in Baltic States: Estonia (Vilbaste 1959; Daiter 1961a; Pototski 1989; 1990b; Pototski et al. 1993), Latvia (Eglitis 1957; Lapina 1959; Grinbergs 1960; 1961a; 1961d; 1964; 1976; Andersone 1963), Lithuania (Likevičienė 1957; Kadytė 1964; Arnastauskienė et al. 1989; Lipatova & Paulauskas 2010; Lipatova 2015; current study). Hosts: S. araneus (LV, LT), A. agrarius (LV, LT), A. flavicollis (LV, LT), M. minutus (LT), M. musculus (LT), R. norvegicus (LV), A. oeconomus (LT), A. amphibius (LV), C. glareolus (EE, LV, LT), M. agrestis (EE, LV, LT), M. arvalis (LV, LT). Host specificity: moderately specific parasite of voles of...