W. nigromaculata (Lubbock, 1873)
– Seira nigromaculata Lubbock, 1873: 146
ON James 1933; Judd 1963 as platani; Scott 1963a as platani; Christiansen & Bellinger 1980, 1998; Skidmore 1995
QC Marshall 1964, 1967; Christiansen & Bellinger 1980, 1998; Skidmore 1995; Huebner et al 2012
L Hammer 1953 as platani var. nigromaculata; Scott 1963a as platani; Christiansen & Bellinger 1980, 1998; Danks 1981 as platani; Skidmore 1995
Remarks: As stated by Christiansen & Bellinger (1980), platani for American authors is the same as
nigromaculata, whereas true W. platani (Nicolet, 1842) has not been found in the Nearctic.
General distribution: Holarctic.
Unplaceable records of Willowsia sp.:
NU Wahlgren 1907 as Sira erudita; Fjellberg 1986; Skidmore 1995 as Seira erudita
BC Marshall et al. 1990