Baetis fuscatus (Linnaeus, 1761)

Ephemera bioculata Linnaeus, 1758: 547 [nomen suppressum; see International Commission on Zoological Nomenclature, 1966: 209].

Cloe bioculata (Linnaeus, 1758) . – Pictet, 1843 -45: 244, pl. 4-35 (transfer).

Baetis fuscatus (Linnaeus, 1761) . – Eaton, 1871: 111 (synonymization).

Material: NMW; 5 ♂ imagines [without data]; Pictet vidit / Baetis venustulus Etn. [Ulmer’s handwriting] .

Remarks: F.-J. Pictet (1843: 244) did not expressly mention any specimens from Austria.