20 s of calling song; male from Cochise Co., Ariz.: Chiricahua Mts.; 25.8°C. Dominant frequency 2.6 kHz. (WTL590-16c)
Sound spectrogram showing 2 s of trill from the 20 s sample above. Click on sound bar to hear graphed song. Click on spectrogram to expand its spectrographic image.
60 s of calling song; male from Bernallilo Co., N.M.: near University of New Mexico campus, Albuquerque; 24.4°C. Recorded by J. Banas on 15 August 2020, 22:46h.
Sound spectrogram showing 2 s of trill from the 60 s sample above, starting at 49 s. Click on sound bar to hear graphed song.
25 s of calling song; male from Bernallilo Co., N.M.: near University of New Mexico campus, Albuquerque; 20°C. Recorded by J. Banas on 7 September 2020, 20:21h.
Sound spectrogram showing 2 s of trill from the 25 s sample above, starting at 23 s. Click on sound bar to hear graphed song.
Song at 25°C:
A melodious trill irregularly interrupted, usually briefly and often after the trill has continued without interruption for >5 sec. Pulse rate 81/sec; frequency 2.7 kHz. Most easily confused with song of two-spotted tree cricket, but that species has a pulse rate of ca. 112/sec.
Length 16–18 mm. Black mark on first antennal segment straight; no orange on the vertex.
Similar species:
Narrow-winged tree cricket—black mark on first antennal segment J-shaped or strongly curved toward inner side; vertex marked with orange.
Habitat:
Crowns of broad-leaved trees; sometimes in understory trees and tangled undergrowth.
Season:
Early August to mid-October in Ohio; June to Sept. in north Florida. One generation annually.
Remarks:
Davis's tree cricket not only shows a disjunct distribution in the United States, where it occurs in the eastern deciduous forest and in isolated, similar habitats in mountains in southern Arizona, but also occurs in southern Mexico (Walker 1967).
