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 Microvelia ( Picaultia ) douglasi Scott, 1874 Material examined. – Telaga Tujuh – Air Telaga: 1 male (apterous), 2 females (macropterous), HZ1a; 1 male , 1 female (macropterous), TAD0613 . Jalan Tanjung Rhu, fish pond: 1 male , 1 female (apterous), 2 females (macropterous), HZL7 a. Swamp on way to Telaga Tujuh: 4 males , 2 females (apterous), 2 males , 6 females (macropterous), HZL8 . Distribution. – From India to Japan and Australia (Andersen & Weir, 2004).