The cone is tall with heavy dark markings along the edges, leaving on a small green triangle at the base of the cone. Like other Neoconocephalus, may be green or brown. In females the ovipositor extends 5-7 mm past the wingtips (Blatchley 1920).
SINA: https://orthsoc.org/sina/196a.htm
Blatchley, W.S., 1920. Orthoptera of Northeastern America: with Especial Reference to the Faunas of Indiana and Florida. Nature Publishing Company. : https://www.biodiversitylibrary.org/bibliography/1700
The SINA range map shows this species occurring in the southern 3/4 of Iowa. Froeschner (1954) examined only 5 specimens, so it appears it was uncommon.
Thick vegetation, usually grass, in such places as roadside ditches, prairies, or even corn fields.