Anaceratagallia sp.

Formerly treated as part of the genus Agallia.

Females of this genus are particularly difficult to identify. This one came to light and I was able to eliminate Agallia consibrina from the striations on the pronotum and the fact that the dark spots in the sides of the scutellum went right to the edge (although there did seem to be a narrow pale area between these and the wings, but on close examination I don't think this was part of the scutellum itself).

The RES key does provide some clues to female species ID relating to the closeness of the tubercles on the forewing, the prominence and sharpness of the veins and the darkening of the seventh sternite, but I was not able to judge these without any comparative material. I also note that none of these are mentioned in Biedermann & Niedringhaus so I'm not sure if they consider them to be reliable anyway? Anyway, I'm keeping this specimen so that when I find a male that I can genitalically confirm I'll be able to compare these details and maybe come up with an ID. Based on the distribution of records on the NBN Atlas this is most likely to be either ribauti or venosa, and not laevis.

female Anaceratagallia sp. showing close-up of vertex and pronotum, pronotum and scutellum, sternites and forewing, Wendling Beck Environment Project (Norfolk, UK), 11th August 2025