Abstract
A new subspecies, Tibicina quadrisignata pilleti Puissant ssp. nov. is described from Morocco. This cicada is similar to Tibicina quadrisignata (Hagen, 1855) but differs mainly in the body color of the males and some acoustic parameters, notably in the courtship song. A complete pipeline is developed for detailed analysis of the morphology and acoustic behavior of the two Tibicina taxa currently known in Morocco, i.e. Tibicina quadrisignata (Hagen, 1855) pilleti Puissant ssp. nov. and Tibicina maldesi Boulard, 1981. Biology, ecology and distribution are presented for the first time for both taxa. Tibicina maldesi emits an abnormally high carrier frequency relative to its size. It could be an adaptation to avoid acoustic interference with a sympatric Tibicina species yet to be discovered or extinct.
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