Laelaps hilaris Koch, 1836

Laelaps hilaris Koch, 1836: 20 .

Records in Baltic States: Estonia (Daiter 1961b; Daiter & Kuzhilnij 1961), Latvia (Lapina 1959; 1988; Grinbergs 1960; 1961a; 1961b; 1961d; 1964; 1970; 1982b; Andersone 1963; Arzamasov 1968; Salmane 2001), Lithuania (Likevičienė 1957; Podėnaitė 1979; Arnastauskienė et al. 1989; Kaminskienė et al. 2020; Kitrytė et al. 2022; current study).

Hosts: S. araneus (EE, LV), S. minutus (LT), A. agrarius (EE, LV, LT), A. flavicollis (EE, LV, LT), A. sylvaticus (LV), M. minutus (LV, LT), M. musculus (LV, LT), R. norvegicus (LV), R. rattus (LV), A. oeconomus (LT), A. amphibius (EE, LV), C. glareolus (EE, LV, LT), M. agrestis (LV, LT), M. arvalis (EE, LV, LT) .

Host specificity: moderately specific parasite of voles of the genus Microtus (S i = 0.78).

European distribution: Austria, Belarus, Bulgaria, Finland, Germany, Hungary, Italy, Moldova, the Netherlands, Norway, Poland, Romania, Russia, Slovakia, Spain, Sweden, Ukraine, the United Kingdom (Bregetova et al. 1955; Bregetova 1956; Pirjanik 1962; Evans & Till 1966; Edler 1969; 1972; Shcherbak & Dudarenko 1970; Mahnert 1971a; Zapatero Ramos et al. 1978; Mehl 1979; Haitlinger 1980; 2011; 2015; Ambros 1987; Schmölzer & Neudorf 1995; Chikilevskaya et al. 1998; Bernini et al. 2003; Beron 2007; Mašán & Fenďa 2010; Várfalvyová et al. 2011; Huhta 2015; Maaz et al. 2018; Siepel et al. 2018).