Basilia nana Theodor, 1954

Péter, Áron, Mihalca, Andrei Daniel & Sándor, Attila D., 2022, Annotated checklist of the bat flies (Diptera: Nycteribiidae) of Romania, Zootaxa 5120 (1), pp. 111-127 : 115

Basilia nana Theodor, 1954

Published records. Peștera Fușteica ( Burghele-Bălăcescu 1966); Cheile Cuților (P. Vacii) ( Willemsen & Thomassen 2009); Somova ( Haelewaters et al. 2017; Sándor et al. 2018; McKee et al. 2019), host Myotis bechsteinii (Kuhl) . Peștera Fușteica ( Burghele-Bălăcescu 1966), host Myotis myotis (Borkhausen) . Peștera Lazului, Roșia ( Sándor et al. 2018), host Myotis nattereri (Kuhl) . Ciutelec/Csehtelek, host Rhinolophus ferrumequinum (Schreber) ( Theodor 1967) .

Material examined. Peștera Mare de la Merești, 26.08.2017, 1 male, Peștera Mare de la Merești, 24.08.2019, 1 female, host My. alcathoe . Peștera Ferice, 29.08.2017, 1 female, 1 male; Peștera Mare de la Merești, 26.08.2017, 4 males; Peștera Lócsűr, 25.08.2018, 4 females; Somova, 18.09.2019, 1 male; Peştera cu Apă de la Leșu, 24.09.2020, 3 females, 4 males; Peștera de la Gălășeni, 23.09.2020, 2 females, 2 males; 2020.09, Peștera de la Întorsuri, 21.09.2020, 2 females, 6 males; Peştera Osoi, 22.09.2020, 2 females, 4 males, host My. bechsteinii . Peștera Lócsűr, 25.08.2018, 1 female, host Myotis blythii (Tomes) . Peştera Mare de la Merești, 23.08.2019, 1 male and 02.09.2020, 1 male, host My. myotis . Peștera Osoi, 22.09.2020, 5 females, 9 males, Pestera cu Apă de la Leșu, 24.09.2020, 1 female, host My. nattereri . Peştera Mare de la Merești, 02.09.2020, 1 female, host Nyctalus noctula (Schreber) . Valea Uzului, 30.05.2020, 1 male, host Plecotus auritus (Linnaeus) .

Distribution. This is the most common Basilia species and is distributed all over Europe. In Romania it has been collected from all historical regions, with 11 distinct geographical records altogether.

Remarks. The primary hosts of this species are My. bechsteinii and My. nattereri , with accidental occurrences on other species. Here, we report a new host-parasite relationship for this species, which to our knowledge had never been recorded from My. alcathoe ( Szentiványi et al. 2016) .