Literature references. River Korana in Korana village, NP Plitvice (Ivković et al. 2012, 2014) (34); tufa barrier Novakovića Brod, NP Plitvice (Ivković et al. 2012, 2014) (36); tufa barrier Labudovac, NP Plitvice (Ivković et al. 2012, 2014) (38).
New record. River Sava near the Jankomir bridge (6), larvae; River Radonja (27), larvae.
Note: S. tuberosum is a member of the large S. tuberosum species group comprising 50 nominal species described from North America, Europe and Asia (Adler & Crosskey 2015). Nearly all Nearctic species and the majority of the Asian species were first revealed chromosomally (Adler et al. 2004; Tangkawanit et al. 2009). Adler and Kuusela (1994) found three cytologically distinct species of the S. tuberosum group in material from the type locality of S. tuberosum in northern Finland. Simulium tuberosum sensu stricto is most likely restricted to the northern parts of Europe and North America (Adler & Crosskey 2015), and species that occur in other parts of Europe might correspond to S. janzeni Enderlein, 1922 or to some other as yet undescribed species.