DeKorte Park in Lyndhurst is a great place to go butterflying — to the point where the North American Butterfly Association even has a nifty little on-line guide about it, listing what butterflies you might see and what times of years you might see them.
You can access it here.
The butterfly above is a Great Spangled Fritillary, recently photographed at DeKorte’s Butterfly Garden and even more recently added to the guide.