Anurogryllus sp. 1

Anurogryllus sp. 1

Calling song

A trill. The signal presents syllables with a duration of 0.002 ± 0.0004 ( 0.0021 –0.0032) seconds, with an interval between syllables of 0.001 ± 0.0003 ( 0.0016 –0.0022) seconds. Overall, the signal exhibits 144.2 ± 14.6 (139–167) syllables per second, with a peak frequency of 7.099 ± 0.155 ( 6.908 –7.313) kHz.

Collection site

Municipality of Porto Alegre. Males emit signals from burrows near urban roads. The males were recorded and collected in January 2021, at 8 pm, with a temperature of 26°C ( Figures 17C View Figure 17 and 18C View Figure 18 ).

Remarks

The specimens were identified as a new species which the description will be published later.

Anurogryllus sp. 2

Calling song

A uninterrupted trill with brief frequency variations throughout the emission. The signal presents syllables with a duration of 0.005 ± 0.0005 ( 0.0045 –0.0062) seconds, and the interval between syllables is 0.004 ± 0.0003 ( 0.0045 –0.0054) seconds. Overall, the signal exhibits 108 ± 0 (108–108) syllables per second, with a peak frequency of 5.653 ± 0.046 ( 5.622 –5.733) kHz.

Collection site

Santa Vitória do Palmar. Males emit signals from burrows on the ground between 7 pm and 9 pm, during a period when the temperature remains stable at dusk (>20°C). Males were recorded and collected between December and January of 2021 and 2022, from 7 pm to 8 pm, with temperatures ranging between 20 and 24°C ( Figures 17D View Figure 17 and 18D View Figure 18 ).

Remarks: the specimens were identified as a new species which the description will be published later.

Anurogryllus sp. 3

Calling song

A trill. The signal exhibits syllables with a duration of 0.002 ± 0.0001 ( 0.0026 –0.0031), and the interval between syllables is 0.004 ± 0.0002 ( 0.0047 –0.0053). Overall, the signal exhibits 129.2 ± 1.303 (128–131) syllables per second, with a peak frequency of 5.586 ± 0.045 ( 5.484 –5.619) kHz.

Collection site

Porto Alegre. Males emit signals from burrows close to urban roads between 7 pm and 9 pm. Males were recorded and collected in October and November of 2022, at 8 pm, with a temperature of 24°C ( Figures 17E View Figure 17 and 18E View Figure 18 ).

Remarks

The specimens were identified as a new species which the description will be published later. Anurogryllus sp. 4

Calling song

A trill with a lower number of syllables at the beginning of the signal. The signal exhibits syllables with a duration of 0.005 ± 0.0004 ( 0.0045 –0.0055), and the interval between syllables is 0.002 ± 0.0003 ( 0.0022 –0.0027) seconds. Overall, the signal exhibits 129.3 ± 18.32 (82–129) syllables per second, with a peak frequency of 5.177 ± 0.032 ( 5.140 –5.234) kHz.

Collection site

Santa Vitória do Palmar. Males emit signals from burrows in the ground between 7 pm and 9 pm. Males were recorded and collected in November 2021, at 8 pm, with a temperature of 20°C ( Figures 17F View Figure 17 and 18F View Figure 18 ).

Remarks

The specimens were identified as a new species which the description will be published later. Gryllus sp.

Calling song

A chirp. The signal consists of phrases lasting 0.169 ± 0.015 (0.161–0.2) seconds, with 5.16 ± 0.4 (5–6) syllables each. The interval between each phrase is 0.507 ± 0.02 (0.47– 0.53) seconds, and the peak frequency is 3.41 ± 0.009 ( 3.407 –3.429) kHz.

Collection site

EstaÇão Ecológica do Taim. Males emit signals between 9 pm and 3 am in open vegetation areas on the ground. Males were recorded and collected in January 2021, at 9 pm, with a temperature of 19°C ( Figure 17G View Figure 17 ).

Remarks

Unfortunately, was not possible to identify the species, but the signal is very similar to Gryllus sp.2 , available in Zefa et al. (2022b).