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 Amphiops mater sumatrensis Régimbart, 1903 ( Fig. 28 ) Amphiops mater Sharp, 1873: 62 ; Balfour-Browne, 1937: 304-306 ; Yano et al., 1983a: 19 ; Balke et al., 1999: 325; Hebauer et al., 1999: 346. Amphiops sumatrensis Régimbart, 1903b: 61 . Amphiops mater sumatrensis Régimbart - Balfour-Browne, 1939c: 304; Hansen, 1999: 107 , and references therein. Amphiops sp. : Yang, 1991: 94 . Material examined. – 205 specimens – Central catchment area – 9 ex. , Chestnut Drive , 27 May.1994 , NS143c ( ZRC ) ; 1 ex. , Chestnut Drive , 26 May.1994 , NS 142e ( ZRC ) ; 1 ex. , MacRitchie Reservoir , Sime Road , 8 Apr.1997 , coll. C. M. Yang et al. ( ZRC ) ; 4 ex. , MacRitchie Reservoir , stream towards reservoir, 20 Apr.1994 , NS 123B/G, coll. C. M. Yang et al. ( ZRC ) ; 1 ex. , Nee Soon Swamp Forest n. pump house, 6 Dec.1996 , coll. L. Hendrich ( ZRC ) ; 1 ex. , Lower Peirce Reservoir , after the concrete water runoff, 22 Apr.1997 , NS 230a, coll. H. K. Lua ( ZRC ) ; 3 ex. , MacRitchie Reservoir , “Cc” inlet, 7 Jun.1994 , NS 153, coll. Y.H. Lim ( ZRC ) ; 1 ex. , Seletar Reservoir Park , 12 May.1994 , NS 132C, coll. H. K. Lua et al. ( ZRC ) ; 1 ex. , Seletar Reservoir , bank, “J” inlet, 16 May.1994 , NS 134a, ZRC 6.18479, coll. H. K. Lua ( ZRC ) . Sungai Buloh – 1 ex. , fish pond, 15 Nov.1990 , ZRC staff coll. ( ZRC ) ; 23 ex. , pond, 5 Dec.1996 , coll. L. Hendrich ( CBH ) . Other areas – 1 ex. , Ulu Sembawang Road , 17 May.1994 , NS 135 ( ZRC ) ; 2 ex. , Lorong Banir “K” stream, 10 Jun.1994 , NS 157 E, coll. K.C. Queck et al. ( ZRC ) ; 2 ex. , Lorong Banir , pond 2, 16 Jun.1995 , NS 191, coll. H. K. Lua et al. ( ZRC ) ; 5 ex. , Jalan Kayu , along muddy bank of fish ponds, 7 Jun.1994 , LHK 257, coll. Y.H. Lim ( ZRC ) ; 10 ex. , Bukit Batok Nature Park , former granite quarry pond, 18 Dec.1995 , LHK 293, coll. H. K. Lua & S.L. Goh ( ZRC ) ; 1 ex. , Bukit Batok Nature Park , former granite quarry pond, 9 Jul.1995 , LHK 282, coll. H. K. Lua ( ZRC ) ; 2 ex. , Bukit Batok Nature Park , pond 2, 23 Apr.1997 , coll. M. Balke , L. Hendrich & H. K. Lua ( CBH ) ; 1 ex. , Warwick Road , 13 Nov.1998 , coll. K.L. Yeo ( ZRC ) ; 78 ex. , fish pond near Kranji Reservoir , 10 & 12 Oct.1990 , coll. C. M. Yang et al. ( ZRC ) ; 55 ex. , Kampong Java Park , 6 Apr.1990 , Y12-1, coll. C. M. Yang & H. K. Lua ( ZRC ) . Distribution. – Indonesia [Sumatra] and West Malaysia ( Balfour-Browne, 1939c ; Hebauer et al., 1999 ; Hansen, 1999 ). Singapore ! Ecology. – A very common species which inhabits very shallow water at the edge of weedy ponds, pools, puddles, slow-flowing streams, ditches and paddy fields ( Yano et al., 1983a ). It is sometimes found in small puddles fed by helocrenes or small streams. The beetles crawl among packs of rotten leaves, plant debris and mud ( Hebauer et al., 1999 ). TRIBE ANACAENINI