Bordered Apamea Moth and Allies Section Apamea sordens
https://www.inaturalist.org/taxa/1330111-Apamea-sordens
Bordered Apamea Moth and Close Allies Complex Apamea sordens
https://www.inaturalist.org/taxa/1330128-Apamea-sordens
I think I figured out that the Close Allies complex (1330128) also includes Apamea anceps and Apamea alpigona.
Bordered Apamea Moth Apamea sordens
Based on the taxonomy page - it appears that this particular genus (Apamea) has multiple levels to it. Based on my experience on iNat, some genuses have a lot of species in them, and so are divided into sections (which is the first item in your list).
Then there are some species that are often difficult to tell apart from each other. Thatâs where the âcomplexâ comes in. For instance, in the Arisaema genus, there is a âcomplexâ for several species of Jack in the pulpit plants that often cannot be distinguished easily/are closely related.
The third one in your list is the actual species.
Hope that helps.
Sections arenât usually used in animal taxonomy, and in plant taxonomy I believe they are just one word/name unlike the binomial here. So these sections look like informal species groupings to me, in which case they wouldnât be that different from complexes and might not really make sense for iNat.
I donât see any flags discussing it and I havenât checked any literature, but itâs likely a recognized species group in the literature and was implemented following this recommendation:
âBordered Apamea Moth and Close Allies Complex Apamea sordensâ Includes sordens and digitula, which are externally identical and only separable based on dissection.
âBordered Apamea Moth and Allies Section Apamea sordensâ includes the sordens-group as defined on page 49 of the Apamea fascicle: