Pterosthetops brincki Perkins & Balfour-Browne, 1994

Bilton, David T., 2014, New species and new records of Pterosthetops: eumadicolous water beetles of the South African Cape (Coleoptera, Hydraenidae), Zootaxa 3811 (4), pp. 438-462 : 454

Pterosthetops brincki Perkins & Balfour-Browne, 1994

Described from the Langeberg and Swartberg ranges, in the central part of the Western Cape. Specimens from the former range are labelled as being collected in a trickle over cliffs. As well as additional records from these mountains, the species is newly recorded from the Outeniquaberg, a mountain range extending eastwards from the end of the Langeberg system. New records from rock faces below springs and a rock face beside a stream.

Additional records: 19/ix/2009 Western Cape, Langeberg, Tradouw Pass, wet rock face along R324 road ca. 10 km S. of Barrydale—abundant; 24/ix/2009 Western Cape, Groote Swartberg, wet rock face beside stream on R328 road 1 km N. of De Top, on north side of Swartberg Pass— 1 ♂; 24/ix/2009 Western Cape, Groote Swartberg, temporary seepage on rock face beside R328 road 2 km N. of Gamkaskloof junction ( Fig. 7 A)— 5 ♂, 2 ♀; 3/i/2014 Western Cape, Outeniquaberg, wet rock faces in Robinson Pass —abundant. Distribution Fig. 8 .

Figures

FIGURE 7. Habitats of Pterosthetops species. A) Swartberg, seepage on sloping rock face beside R 328 road, north of Swartberg Pass, 2 km N of junction with Gamkaskloof road— P. br i nc k i, P. swartbergensis sp. nov. Seepage dry, January 2014; B) Cederberg, seepage at top of Uitkyk pass— P. hawequas, P. tuberculatus sp. nov. C) Cederberg, view from summit of Uitkyk Pass. Photos D T Bilton & A Foggo.

FIGURE 8. Distribution of Pterosthetops species in the Western Cape: red symbols P. br i nc k i, green symbols P. equestrius, yellow symbols P. hawequas, white symbols P. indwei sp. nov., blue symbol P. swartbergensis sp. nov. Basemap source: ESri, GigitalGlobe, GeoEye, i-cubed, USDA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, Swisstopo and the GIS User Community.