The concerns about the sprayings for EEE vector mosquitoes go way beyond the rare butterfly (Mitchell's Satyr), and the article cited makes a good start on the unintended consequences, which will likely aggravate the original problem and/or creates new problems.
This spraying will likely have a huge impact on insectivorous birds. I have seen a huge decrease on a natural area in S central MI, but I believe this decrease is widespread.
I wonder if the well-intended public health agencies who are leading this consulted government agencies who have ecological expertise, i.e., MiDNR for starters. Does anyone know?