incurved shieldback
Idionotus incurvus Rentz and Birchim 1968

map
male
male
female

15 s of calling song [2.82MB]; male from Tulare Co., Calif. (South Fork Campground, Sequoia National Park); 25.0°C (recording by Jeff Cole; used by permission).

Nomenclature: OSF (Orthoptera Species File Online)