Herbert Zettel, David J.W. Lane, Clister V. Pangantihon, Hendrik Freitag
Updated distribution data are presented for the following species of Notonectidae (Heteroptera) in southeastern Asia: Anisops breddini Kirkaldy, 1901, A. kuroiwae Matsumura, 1915, A. nasutus Fieber, 1851, A. nigrolineatus Lundblad, 1933, A. occipitalis Breddin, 1905, A. rhomboides Nieser & Chen, 1999, A. stali Kirkaldy, 1904, Aphelonecta philippina Zettel, 1995, Enithares bakeri Brooks, 1948, E. freyi Brooks, 1948, E. intha Paiva, 1918, E. mandalayensis Distant, 1910, E. martini martini Kirkaldy, 1898, E. quadrispinosa Lansbury, 1967, E. sinica (Stål, 1854), E. subparallela Lansbury, 1968, E. uncata Lundblad, 1933, E. cf. vicintricata Lansbury, 1968, and Nychia sappho Kirkaldy, 1901. There are six first records from Brunei Darussalam (Anisops breddini, A. nasutus, A. nigrolineatus, Aphelonecta philippina, Enithares cf. vicintricata, and Nychia sappho) and one first record each from the Philippines (Anisops occipitalis), China (Enithares mandalayensis), West Malaysia (Enithares sinica) and East Malaysia (Sarawak) (Enithares uncata). A short description of the previously unknown female of Enithares intha is given. The status of Enithares quadrispinosa as a separate species (not a subspecies of E. freyi) is confirmed. Check-lists of the Notonectidae of the Philippines and Brunei are provided.
Natural History Museum, Entomological Department, 1010 Vienna, Burgring 7, Austria; Department of Biology, Universiti Brunei Darussalam, BE1410, Jalan Tungku Link, Brunei Darussalam; Biology Department, University of San Carlos, Cebu City 6000, Philippines; Ateneo de Manila University, Biology Department, School of Science and Engineering, Quezon City 1101, Loyola Heights, Philippines; Senckenberg Museum of Zoology, 01109 Dresden, Königsbrücker Landstraße 159, Germany
