spring field cricket
Gryllus veletis

Dots show county records; shaded area shows likely general distribution.
Computer-generated distribution map, produced in 2004 from records in a database available on this site.

The Illinois record is from a 12/29/2014 email from Carl Strang, who reports in his Singing Insects Summary 2014, that both fall and spring field crickets occur in many habitats in DuPage County.

David Weissman is currently working on a revision of the Gryllus species that occur in the western and central United States. He has concluded that Gryllus veletis occurs in the northern states of the western United States (personal communication).