Excited to see this one implemented. Could be good to extend a version of it to genera I think, though I get what @alex is saying about it being less straightforward to explain.
For species labels it could also be nice to have the icons present in places where you have views of the entire species list - to readily see how many from a genus are already coverd.
E.g. on the dropdowns :-
One thing which seems to add to the ones on the CV clean-up wiki are where we have genera with only a single species making the model - could be helpful to encourage and further highlight the need to get other species included to balance out the data.