Hello, everyone. I just came across these observations yesterday:
All by @heinerziegler.
I do not want to agree with @heinerziegler without independently verifying the observations. This includes looking at literature. I know that it is found in Welhri, 1941, but I cannot seem to find the source. The main quandary is that I cannot find any other reliable sources at all that accurately describes in detail what Biston betularia alexandrina looks like. The only other website that has pictures of this particular subspecies contains @heinerziegler’s pictures, euroleps. (Warning! The website is not https!)
Has anyone else been in this situation where they encounter an observation of something that cannot be verified independently, either by pictures from other sources, or by literature?