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 Idiotrephes chinai Lundblad, 1933 Material examined. – Telaga Tujuh – Air Telaga: 6 males , 1 female (brachypterous), KV6; 2 males (brachypterous), 5 males , 10 females (macropterous), HZL1 a; 1 male , 1 female (brachypterous), 5 males , 4 females (macropterous), HZL1 b; 1 female (brachypterous), TAD0613 . Distribution. – West Malaysia , Sumatra, and Borneo (Papá ek & Zettel, 2000), southern Thailand (Sites & Polhemus 2002).