Cloeon dipterum s.l. "IS2" af. peregrinator - Female

Taxonomic status of populations of many species on isolated islands is often problematic. Here we have a "species" that is already "under discussion" in continental Europe where some authors will have various species of other authors (such as 1Cloeon inscriptum ) to be all classified as Cloeon dipterum.
Recent molecular research on the Cloeon dipterum species complex on the Macaronesian islands shows a number of clearly separate lineages (called IS1, IS2 and IS3) that each have populations on various islands that have sufficient molecular distance to classify as species. The population of La Palma is part of the IS2 lineage and the only currently recognized "separate" species in that lineage would be Cloeon peregrinator.
So my images of the Mayflies on the wall of our holiday apartment on La Palma show some currently unnamed species in the Cloeon dipterum complex, with closest affinities to the species known as Cloeon peregrinator.