Description of the song of Purana metallica from Thailand and P. latifascia from Borneo (Hemiptera, Cicadidae)

Abstract

Duffels et al. (2007) presented a revision of the Purana tigrina species group in Sundaland. Purana tigrina (Walker, 1850) and five new species were identified, named and described. It would be a great advantage, if we could describe also the songs of all six species of the group, since calling songs of cicadas are highly species specific and of a great help for the recognition of hidden sister species (e.g. Puissant & Boulard 2000, Gogala & Trilar 2004, Presern et al. 2004, Gogala 2006). A knowledge of song patterns is very useful also in biodiversity investigations and monitoring of faunal changes. Currently we know from this species group only the songs of Purana metallica Duffels & Schouten, 2007 and Purana latifascia Duffels & Schouten, 2007. Purana metallica is known from southern Thailand and Langkawi Island (Malaysia), P. latifascia occurs in eastern Sabah, Borneo. The main characteristics of the calling song of P. metallica have been already described as Purana aff. tigrina from Ko Tarutao, Thailand (Gogala 1995). Here we give the description of the song of P. latifascia and a more detailed description of the song of P. metallica with emphasis on time parameters and some other details.