Conocephalus (Anisoptera) truncatus (Redtenbacher)

Fianco, Marcos, 2023, Katydids (Orthoptera: Tettigoniidae) from Guartelá State Park, State of Paraná, Southern Brazil: diversity, bioacoustics and description of five new species, Journal of Natural History 57 (1), pp. 1080-1137 : 1094

Conocephalus (Anisoptera) truncatus (Redtenbacher)

( Figure 5d )

Bioacoustics ( Figure 6g –h )

Male calls only at night. Duration of the pulses: 15.3 ± 1.6 ms (12–19 ms); duration of echemes: 0.5 ± 0.05 s (0.4– 0.6 s); mute interval between echemes: 0.07 ± 0.01 s (0.49– 0.12 s); bandwidth: 17.6 ± 0.3 kHz (16.8–18.6 kHz); peak frequency: 28.5 ± 0.8 kHz (23.8– 30.4 kHz). This is the only species of Conocephalus studied herein for which the peak frequency of the calling song is situated in the ultrasound; due to the large bandwidth the sound can be heard, but it is quite soft.

Examined material

One male, ′ Brasil, PR, Tibagi, Parque\Estadual do Guartelá [Guartelá State Park]\ 24.5660°S, 50.2561°W 08–11.iii.2021 Coleta ativa\diurna [diurnal active collection] M. Fianco, D.N. Barbosa & H. Preis '.

Figures

Figure 5. Species of Conocephalini found in Guartelá State Park. (a) female (top) and male (bottom) of Conocephalus (Anisoptera) goianus; (b) male (top) and female (bottom) of C. (A.) guartela sp. nov.; (c) male (top) and female (bottom) of C. (A.) saltator; (d) male of C. (A.) truncatus; (e) male of C. (Opeastylus) longipes; (f) male and female of an unknown genus and species of Conocephalini; (g) male of C. (A.) goianus; (h) male of C. (A.) saltator; (i) female of C. (O.) longipes.

Figure 6. Calling songs of the species of Conocephalus (Anisoptera). (a, c, e, g) echeme sequence; (b, d, f, h) spectrogram of an echeme, in linear intensity scale. (a, b) C. (A.) goianus; (c, d) C. (A.) guartela sp. nov.; (e, f) C. (A.) saltator; (g, h) C. (A.) truncatus.