Nerax aestuans (Linneaus, 1763)
Original Description: Asilus aestuans Linneaus, 1763 .
Published State Records: Cole (1969) (Wyoming; as Efferia aestuans); Fisher & Wilcox (1997) (Wyoming; as Efferia aestuans); Geller-Grimm (2016) (Wyoming).
Published County Records: None known.
Museum Records: None known.
Comment: This may be the “Tex- coastalis” form discussed in Bullington & Lavigne (1984), since Nerax (Efferia) aestuans is primarily Eastern in distribution.