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Chisos Mountains field cricket

Gryllus chisosensis Weissman & Gray 2019

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map holotype male female  
50 s of calling; from Brewster County, Tex.; 24°C. Dominant frequency 4.2 kHz. Recording by D.B. Weissman (S07-36, R07-116); used by permission.
This spectrogram is a 10 s excerpt of the 50 s audio file accessible above. The excerpt begins at 24 s.
spectrogram
Sectrogram showing first 4 chirps of 10 s sample above.
spectrogram
Song: Weissman et al. (2019) described the song as a chirp with 4-5 pulses per chirp, 90-150 chirps per minute. Pulse rate 14-17 at 25°C.
Identification: A key to the adult males of native US Gryllus is in Weissman and Gray (2019).
DNA: See Gray, Weissman, et al. (2020).
Habitat: Found in extensive rock piles on talus slopes in Pinyon-Juniper oak woodland.
Life cycle: Probably one generation per year.
Season: Adults heard singing from May to June.
Remarks: Gryllus chisosensis is hard to collect because it is uncommon and because it retreats into deep rock piles when disturbed. As observed in other rock-chirping crickets, G. chisosensis may continue to sing while retreating. Two orthopteroid species that are also restricted to the Chisos Mountains are the walking stick Diapheromera torquata Hebard and the katydid Paracyrtophyllus escelsus (Rehn and Hebard).
Name derivation: Named after the Chisos Mountains.
More information:
Subfamily Gryllinae, genus Gryllus.
References: Weissman and Gray 2019, pp187-197, pp187-191; Gray, Weissman, et al. 2020.
Nomenclature: OSF (Orthoptera Species File Online).
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