Microcentrum marginatum Brunner von Wattenwyl, 1878

Fianco, Marcos, Szinwelski, Neucir & Faria, Luiz R. R., 2022, Katydids (Orthoptera: Tettigoniidae) from the Iguaçu National Park, Brazil, Zootaxa 5136 (1), pp. 1-72 : 32

Microcentrum marginatum Brunner von Wattenwyl, 1878

Fig. 13E, F

Distribution: Brazil: Paraná, Pernambuco; Suriname.

New record for the Paraná State.

Comments: This species was previously recorded only in northern regions of South America. The record of this species for the ParNa Iguaçu expands its distribution in at least 3,000 Km. The individuals were collected only in light traps.

Bioacoustics ( Fig. 14C, D ): Males stridulate only during the night, producing hemisyllables that are not grouped, so echemes are not present. Each hemisyllable is formed by several pulses in crescendo that after reaching the peak start diminishing their intensity reaching a frequency that are smaller than the initial frequency.

Dominant frequency: 11 ± 1.7 kHz.

Bandwidth: 4.4 ± 2.8 kHz.

Duration: Pulse: 0.7 ± 0.3 ms; Syllable: 25 ± 1 ms.

Mute interval: Pulse: 0.7 ± 0.06 ms.

Figures

FIGURE 13. Species of Microcentrini and Odonturini (Phaneropterinae) from the ParNa Iguaçu: A: Anapolisia micromargaritifera, male; B: Phillophyllia venosa, male; C and D: Microcentrum lanceolatum, male and female; E and F: Microcentrum marginatum, male and female; G and H: Phillophyllia latior, male and female; I and J: Anisophya melanochloris, male and female; K and L: Anisophya una, male and female; M and N: Xenicola taroba, male and female; O and P: Xenicola xukrixi, male and female.

FIGURE 14. Calling songs of species of Microcentrum (Phaneropterinae: Microcentrini) from the ParNa Iguaçu. A and B: a syllable of the calling song of M. lanceolatum, sonogram and spectrogram, respectively; C and D: a syllable of the calling song of M. marginatum, sonogram and spectrogram, respectively.