Cicadetta cerdaniensis, Puissant & Boulard, 2000, Puissant & Boulard, 2000

Sueur, Jérôme & Puissant, Stéphane, 2007, Similar look but different song: a new Cicadetta species in the montana complex (Insecta, Hemiptera, Cicadidae), Zootaxa 1442, pp. 55-68 : 61

C. cerdaniensis calling song

Because C. cantilatrix sp. nov. and C. cerdaniensis calling songs have been previously mistaken, we here provide a description of a typical sound emission produced by C. cerdaniensis male. Echemes emitted by C. cerdaniensis basically follow the same pattern as those produced by C. cantilatrix sp. nov. However, as stated in the original description ( Puissant & Boulard, 2000), a typical calling sequence of C. cerdaniensis includes three phrases differing in echeme production rate ( Figure 6A ). All temporal parameters (ED, FPD, SPD, IED) covary ( Figure 6B ). The first phrase is made of short echemes produced at high rate (short ED, short FPD, short SPD, short IED, Figure 6C ). Then, during the second phrase, echemes lengthen and the gaps between them also increase (long ED, long FPD, long SPD, long IED, Figure 6D ). The third phrase is characterised by the emission of short echemes at a very high rate (short ED, short FPD, short, SPD, very short IED, Figure 6E ).

In the frequency domain, most of the spectral energy is between 12 kHz and 19 kHz, but the dominant frequency is around 15 kHz, higher than that of C. cantilatrix sp. nov. ( Table 1 , Figure 7 ).

Figures

FIGURE 6 A – E. Temporal pattern of C. cerdaniensis calling song. A, Oscillogram (time vs amplitude) of two typical sequences, each made of three phrases (P 1, P 2, P 3). Letters refer to temporal zooms depicted in C, D and E; B, Variations of temporal parameters along the phrases. ED, EID, FPD and SPD covary. C, Oscillogram of a typical echeme produced during phrase 1 (P 1); D, Oscillogram of a typical echeme produced during phrase 2 (P 2); E, Oscillogram of a typical echeme produced during phrase 3 (P 3). Abbreviations as in figure 2.

FIGURE 7 A – C. Frequency pattern of a typical long echeme produced by C. cerdaniensis. A, Oscillogram; B, Spectrogram (time vs frequency vs amplitude, colour amplitude scale given on the right) and mean spectrum (frequency vs amplitude) of the first and second parts of the echeme. C, Dominant frequency variation along the echeme. Parameters as in figure 6.