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This is very confusing group of species. There is a lot I could comment on but will not at this moment. M. c. nigrofemoratus is considered a valid subspecies and in my opinion this one fits the description of Strobl 1909 (which is very brief). Tomasovic stated that M. subdolus (which supposedly has also black femora!) is a synonym for M. chrysitis just to emphasize the confusion. One thing is sure, this specimen is very close to M. chrysitis (nigrofemoratus) and in my opinion a lot of work still has to be done.