Pyrgauchenia species

Stegmann, U. E., Webb, M. D. & Linsenmair, K. E., 2002, New species, synonymies and life-histories in the South-East Asian treehopper genus Pyrgauchenia Breddin (Auchenorrhyncha: Membracidae: Centrotinae), Journal of Natural History 36 (3), pp. 279-303 : 282

Distribution of Pyrgauchenia species

The 14 known Pyrgauchenia species are distributed across Sumatra, Java, Borneo, Sulawesi and Peninsular Malaysia ( Metcalf and Wade, 1965; present work). Two species are restricted to Sumatra, one to Java, six to East Malaysia (Borneo and Sabah), two to Sulawesi and one to Peninsular Malaysia ( table 1). The remaining two species both occur on Sumatra; one also occurs on Java and the other in Sabah. Thus, within the genus Pyrgauchenia , 11 of the 14 species are endemic to islands of South-East Asia. P. pendleburyi from Peninsular Malaysia is the ®rst published record for the genus on the South-East Asian mainland. Considering the available data on altitude ( table 1), it appears that Pyrgauchenia is restricted to higher altitudes (800±1600 m). Evidence from two species ( P. pendleburyi and P. tristaniopsis ) suggests that this pattern may not reēct a collection bias but rather actual altitudinal distribution (see species descriptions below for details).