Pacarina schumanni, Distant

SUEUR, JÉRÔME, 2002, Cicada acoustic communication: potential sound partitioning in a multispecies community from Mexico (Hemiptera: Cicadomorpha: Cicadidae), Biological Journal of the Linnean Society 75 (3), pp. 379-394 : 383

PACARINA SCHUMANNI ( FIG. 4 )

Seasonal rhythm. From March to July, dry and wet seasons.

Nycthemeral rhythm. Continuous activity from 6.30 a.m. to 7.50 p.m. with higher activity at dawn and dusk.

Calling site and calling posture. Inhabited the lower strata at height between 5–10 m. Males did not stop their sound production when the sky was cloudy. No body movement occurred during sound production.

Calling song. Very high pitched succession of sequences of 4.17 s ± 1.1 (1.48–5.99, 40) separated by pauses of 5.22 s ± 1.99 (1.70–11.61, 39) with a main energy band between 13 and 18 kHz. Sequences were made up of a train of echemes produced at a repetition rate of 32 Hz. Echemes were composed of two pulses at the beginning of the sequence increasing to eight at the end of the sequence. Pulses were repeated with a frequency of about 450 Hz.

Behaviour. Cryptic, gregarious, still and calling in chorus with fine synchronization.

Figures

Figure 4. Calling song of Pacarina schumanni. (A) Oscillogram and sonogram of one sequence; (B) train of group of sixteen pulses in the middle of the sequence; (C) detail of a group of six pulses; (D) elementary oscillations of one pulse.