Fairly confident about the ID. Still new to grasshoppers though, so corrections (to M. sanguinipes?) most welcome.
(Melanoplus femurrubrum) Blackwater National Wildlife Refuge, Dorchester County, Maryland September 14, 2014
(Melanoplus femurrubrum) Catoctin Creek Park, Middletown, Frederick County, Maryland September 6, 2014
Boulder County, Colorado, US
Found alongside a female.
Please don't be shy about correcting my ID.
I'm not very good at grasshoppers. Please don't be shy to correct! :-)
Found alongside an immature male: http://inaturalist.ca/observations/3759010