Mormon Crickets are adapted to the arid climate of the Great Plains.

The egg hatching rate is higher during warm, dry seasons, sometimes leading to outbreaks of large swarms.

This female katydid has a long ovipositor for depositing eggs in vegetation.

She has picked up a spermatophore (the white ball beneath her ovipositor: a nuptial gift from a male).

Katydids in northern Illinois include:
Black-legged Meadow Katydid
Greater Angle-wing Katydid.