First Inventory Of The Water Bugs (Heteroptera: Nepomorpha: Gerromorpha) Of Langkawi Island, Kedah, Malaysia Author Zettel, Herbert Author Tran, A. D. text Raffles Bulletin of Zoology 2009 2009-08-31 57 2 279 295 journal article 10.5281/zenodo.5342032 2345-7600 5342032 Halobates (sensu stricto) hayanus White, 1883 Material examined. – (all apterous): Jalan Tanjung Rhu, rocky shore: 5 males , 3 females , HZL7 b, 3 males , 3 females , TAD0620 . Former record from Langkawi : 1 male , “Langkawi Is., 4.IV.1934 , leg. R . Birch”, in the Natural History Museum, London ( HERRING 1961 ) . Distribution. – Indo-West Pacific, from the Red Sea to Australia (Andersen & Cheng, 2004).