Cnemidophyllum (Eupeucestes) citrifolium (Linnaeus, 1758)

Fianco, Marcos, Szinwelski, Neucir & Faria, Luiz R. R., 2022, Katydids (Orthoptera: Tettigoniidae) from the Iguaçu National Park, Brazil, Zootaxa 5136 (1), pp. 1-72 : 50-51

Cnemidophyllum (Eupeucestes) citrifolium (Linnaeus, 1758)

Fig. 25A

Distribution: Brazil: Paraná, São Paulo; French Guiana; Colombia: Valle del Cauca; Trinidad and Tobago.

New record for the Paraná State.

Comments: The species presents a broad geographic distribution, even if a discontinuity of the records, as the species is absent in most of the Amazon, besides Pantanal and Cerrado, exist. In the same way as for other species of Tettigoniidae , such discontinuity is probably due to sampling absence.

Bioacoustics ( Fig. 26A–C ): Males stridulate only at night. A single echeme, composed by only three syllables, in a crescendo of intensity, is produced. The syllables are composed by several pulses, more spaced in the first two thirds of the syllable, and almost juxtaposed in the last third.

Dominant frequency: 16 ± 0.8 kHz.

Bandwidth: 7.7 ± 2.7 kHz.

Duration: Pulse: 0.08 ± 0.01 s; Syllable: 0.67 ± 0.13 s.

Mute interval: Pulse: 0.18 ± 0.009 s.

Figures

FIGURE 25. Species of Steirodontini (Phaneropterinae) from the ParNa Iguaçu. A: Cnemidophyllum citrifolium, male; B and C: Steirodon dentiferoides, male and female, respectively; D and E: S. dentiferum, male and female, respectively; F and G: Stilpnochlora marginoides, male and female, respectively; H and I: S. nanna, male and female, respectively.

FIGURE 26. Calling songs of species of Steirodontini and of Enthephippion olivaceum. A–C: Cnemidophyllum citrifolium; D–F: Steirodon dentiferoides; G–I: S. dentiferum. A: sonogram of one echeme; B, E and H: sonogram of one syllable; D and G: sonogram of two isolated syllables; C, F and H: spectrogram of the respective syllable.