Guaranisaria llanoi Torres 1964
Year: 2025
Type: article
Abstract: Guaranisaria llanoi Torres, 1964 (Eryngo-cicada) Flying song A series of short echemmes resembling ‘snaps’, lasting 0.161 ± 0.035 (0.061 –0.241) seconds, similar to the flying song of C. diardi. Overall, there are 23 ± 3 (16–28) syllables emitted, lasting approximately 0.173 ± 0.042 (0.097 –0.253) seconds. The peak frequency is 7.9 ± 1.4 (5.0–10.1) kHz. Calling song Produced when the male lands on a Gravatá (Eryngium horridum Malme, Apiaceae) without a female present. This signal can be divided into two parts. The first part of the signal, referred to as ‘part A’, consists of a single echemme lasting 0.035 ± 0.003 (0.031 –0.043) seconds, separated by a brief interval from the next part. The second part of the signal, ‘part B’, is an echeme with a series of syllables, lasting 0.104 ± 0.084 (0.024 –0.238) seconds. It has a peak frequency of 9.3 ± 0.8 (7.8–10.1) kHz, lasting approximately 0.035 ± 0.003 (0.031 –0.043) and 0.104 ± 0.084 (0.024 –0.238) seconds for parts A and B, respectively. Stress call A series of long-duration echemmes, but there is no defined rhythm as this signal depends on the organism’s stress level. It comprises about 119.8 ± 43 (86–203) syllables per echemme, lasting 0.666 ± 0.621 (0.22–1.7) seconds. The signal presents frequencies distributed in a broad-range frequency of F1, F2, and F3. F1 is at 6.6 ± 0.35 (6.1–7.1) kHz, F2 at 7.4 ± 0.24 (7.2–7.8) kHz, and F3 at 8.5 ± 0.2 (8.2–8.6) kHz. Collection site: Parque Natural Municipal Saint-Hilaire. The cicada sings and flies at heights below 1 metre, performing directional flights to its host plant, the Gravatá. Collected and recorded between September and October 2021, between 9 and 11 am, with a temperature of 20°C (Figures 2D–F and 5B). Remarks Acoustic repertoire previously described by Acosta et al. (2023).
Authors: Acosta, Riuler C., Timm, Vítor F., Zefa, Edison, da Costa, Maria K. M., Ruschel, Tatiana P., Lopes, Dimitrius A. R., Kaminski, Lucas A.
Language: English
Topic: Hemiptera Insect Studies
Domain: Life Sciences
Open Access status: gold
OpenAlex ID: W7078984618
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