Bent (1926)†, Bildstein et al. (1990), Crane (1975)†, De Santo (1992)†, De Santo et al. (1997)†, Doflein (1899), Farron et al. (2020)†, Harkema & Miller (1962), Heard (1976)†, Hippensteel & Martin (2001), Howell (1932)†, Tucker et al. (1995), Tucker et al. (1997), Underwood et al. (2013), Vu et al. (2017), Wayne (1922), Whitelaw & Zajac (2002)†
Entries marked with † represent indirect references to location through citation. Entries marked with ‡ represent potential inhabitants inferred from species ranges.