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Taxonomy and song of the cicada Ayesha serva (Walker, 1850) from the coasts of northern Sundaland

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The genus Ayesha belongs to the tribe Dundubiini and is distinguished from other genera of the tribe by the spatulate and strongly overlapping male opercula. The synonymy of three species, Cosmopsaltria vomerigera Breddin, 1901, Dundubia lelita Kirkaldy, 1902 and Cicada elopurina Distant, 1888, which are treated as junior synonyms of A. serva (Walker, 1850) in the literature, is confirmed. Two other species, A. spathulata Stål, 1870 and A. operculissima Stål, 1870, are synonymized here with A. serva, so that Ayesha now becomes a monotypic genus. Ayesha serva is redescribed and recorded from Greater Natuna Island, the northern parts of Borneo and Sulawesi and the southern Philippines; the species is mainly found in trees on the beach, in mangroves and other coastal forests. The broad band long lasting monotonous calling song has a very simple and constant pattern. It consists of a fast repetition of many echemes of duration from 41.7 to 79.0 ms, which are composed of 8 to 19 pulses with a repetition rate of 240 pulses per second.

Affiliations: 1: Naturalis Biodiversity Center, Department of Terrestrial Zoology, P.O. Box 9517, NL-2300 RA Leiden, The Netherlands. ; 2: Slovenian Museum of Natural History, Prešernova 20, P.O. Box 290, SI-1001 Ljubljana, Slovenia.


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