18 s of calling song, holotype from Alpine, San Diego County, Calif., 25.0°C. Dominant frequency 4.0 kHz. D. B. Weissman, recording no. 97-18; used by permission. Click on sound bar to hear entire recording.
This sound spectrogram is a 3 s excerpt of the 18 s audio file accessible above. The excerpt begins at 3 s. Click on sound bar to hear graphed song.
Sound spectrogram of first two chirps of 5 s sample above; chirps are slowed to one-eighth speed. Click on sound bar to hear graphed song.
34 s of calling, from Pima County, Ariz., 25.4°C. Dominant frequency 4.5 kHz. Recording by D.B. Weissman (S15-108, R15-325); used by permission. Click on sound bar to hear entire recording.
This sound spectrogram is a 10 s excerpt of the 34 s audio file accessible immediately above. The excerpt begins at 15 s. Click on sound bar to hear graphed song.
Sound spectrogram showing first 4 chirps of 10 s sample above. Click on sound bar to hear graphed song.
Weissman and Gray (2019) described the song as loud, with 11–17 pulses per chirp and usually <2 chirps per second.
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. Color is variable, from reddish to brown to black.
Sister species to G. assimilis and closely related to G. locorojo and G. veintinueve. For more information about DNA testing, see Weissman and Gray (2019).
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.
Southwestern Arizona, southern California, and the most southern tip of Nevada.
Human maintained lawns, golf courses, schools, and other such habitats as well as fresh and salt water marshes.
No diapausing stage, possibly making it easy to rear continuously for scientific or commercial purposes.
Two to three generations per year, found year–round.
In reference to the high number of pulses per chirp.