Chisos katydid
Paracyrtophyllus excelsus (Rehn and Hebard 1914)

map	male	female

	20 s of calling song [1.80MB]; male from Brewster Co., Tex.: Chisos Mts.; 23.5°C. (WTL151-3a)
	14 s of protest song (teased) [1.21MB]; male from Brewster Co., Tex.: Chisos Mts.; 23.5°C. (WTL151-3b)

Waveform of 4 s of calling at 23.5°C (from WTL151-3a). Peak frequency 4 kHz.
Click on first half of waveform to hear graphed song.
Click on second half of waveform to expand last syllable.

Waveform of 4 s of protest at 23.5°C (from WTL151-3a). Peak frequency 4 kHz.
Click on first half of waveform to hear graphed song.
Click on second half of waveform to expand sixth and seventh syllables.

Identification:  Length 35-44 mm. Forewings similar in shape to those of common true katydid; males have no knob on third abdominal tergite.

Habitat:  Oak woodland.

Season:  July to Oct.

Song at 25°C:  A raucous wonk produced at a rate of about 1 per s.

Similar species:  Paracyrtophyllus robustus has truncated forewings and males that have a large stout erect knob on the third abdominal tergite.

More information:  subfamily Pseudophyllinae, genus Paracyrtophyllus

References:  Rehn and Hebard 1914, Hebard 1941.

Nomenclature:  OSFO2 (Orthoptera Species File Online)