Betsy Bloom/Daily News photo

A Harris’ checkerspot butterfly sips nectar from a black-eyed Susan in a field in northern Dickinson County. The black-eyed Susans, also known by its botanical name rudbeckia, begin blooming in late June and will continue into September. The Harris’ checkerspot is not a common butterfly in the region but can have areas where it can be reliably found if its caterpillar host plant, the flat-topped aster, is present, according to experts.