Aquatic Coleoptera Of Singapore: Species Richness, Ecology And Conservation # Author Hendrich, Lars Author Balke, Michael text Raffles Bulletin of Zoology 2004 52 1 97 145 journal article 10.5281/zenodo.13244881 2345-7600 13244881 Orectochilus (Patrus) klynstrai Ochs, 1927 Orectochilus klynstrai Ochs, 1927b: 117 , 122; 1929: 402; 1953: 220. Material known . – Number ? – Other areas - St. George Road , 10 Apr.1922 , coll. N. Smedley ( NMKL ); Katong, July1922 , coll. F.N. Chasen ( NMKL ) ( Ochs, 1929 ). Not seen . Distribution . – Thailand , West Malaysia , Singapore , Indonesia : Sumatra ( Ochs, 1929 and Mazzoldi, in litt.). Ecology. – See Orectochilus andamanicus and O. corporaali .