A differential grasshopper, Melanoplus differentialis, photographed last summer. Click to enlarge.
This grasshopper is also called a herringbone grasshopper for its boldly patterned hind legs. The local population is underground now -- overwintering as eggs. They'll be dormant for a few more months, then hatch when warm weather returns. (Hopefully they won't be fooled by the current warm spell in New York City.)