long-chirp field cricket
Gryllus multipulsator Weissman 2009

U.S. distribution
West Coast & Baja CA

17 s of calling song [1.54 KB]; holotype from Alpine, San Diego County, Calif.; 25.0C. D. B. Weissman
recording no. 97-18; used by permission.

Sound spectrogram of 5 s of calling at 25°C (from DBW rec. 97-18). Dominant frequency 4.0 kHz.
Click on spectrogram to hear graphed song.

Sound spectrogram of first two chirps in 5s sound spectrogram.
Click on spectrogram to hear graphed chirps slowed to one-eighth speed.

In the field, this species is easily identified by its prolonged chirps. Morphologically it is characterized by a pubescent pronotum, a head narrower than the pronotum, and no individuals with hindwings shorter than the forewings. Gryllus assimilis, a closely related species known from south Florida and south-most Texas, is morphologically indistinguishable from G. multipulsator but its calling song has briefer chirps (8-10 pulses vs. 12-16 for multipulsator). In both species the pulses become more widely spaced (i.e., are produced at a slower rate) as the chirp progresses.

Life cycle:   No diapausing stage, possibly making it easy to rear continuously for scientific or commercial purposes.

More information:  subfamily Gryllinae, genus Gryllus

References:  Weissman, Walker & Gray 2009.

Nomenclature:  OSF (Orthoptera Species File Online)