Sword-bearing Conehead – Neoconocephalus ensiger
Family Tettigoniidae – (Katydids)
Size: 45-64 mm; males 45-55 mm, females 52-64 mm
Range: Central New Mexico, eastern Colorado, western Nebraska, to North Dakota, Ontario, Maine, and North Carolina.
Habitat: Moist, grassy areas.
Size (not including antennae) 50mm
References:
1. Bugguide.net, Sword bearing conehead