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Good evening Sir Paul, Thank You for the link but Sir Ozerov's work is local not Palaearctic. In order for the keys to be useful in this thread (German Palloptera), flava and maculifemur need to be separated. To my knowledge, flava and maculifemur are valid. I cannot find photos, descriptions or keys of these two species. For all I know, flava could look exactly like umbellatarum with a minor difference.

I like the work. Naturally, Russian work is usually beautiful. I will enjoy reading this material. Meantime, I am still hunting for flava (which must have a blonde color somewhere) and maculifemur (which must have spots or hairs on the femur.)

Do you know where to look for a description or keys of these two species?

PS. I forget alot of Russian language. I'll have to brush up on my Russian language skills. I just love listening to Yuliya Savichyeva. FANtastic music.