Dark Gray-Winged Olive Duns
This common name refers to only one species.
These are very rarely called Dark Gray-Winged Olive Duns.
This is one of the most widespread and abundant Baetis
species, and it may produce fishable hatches under a variety of conditions.
This species is known in angling books by several old synonyms (Synonym: A former name of a taxon, usually a species. Entomologists frequently discover that two insects originally described as different species are one in the same, and they drop one of the names. The dropped name is said to be a synonym of the remaining name. These changes take a while to trickle into the common knowledge of anglers; for example, Baetis vagans is now a synonym of Baetis tricaudatus.)
, including Baetis quebecensus
, Baetis levitans
, Baetis cingulatus
, and Baetis phoebus
, in addition to the correct name.