Cybister rugosus ( MacLeay, 1825 )

Hendrich, Lars & Balke, Michael, 2004, Aquatic Coleoptera Of Singapore: Species Richness, Ecology And Conservation #, Raffles Bulletin of Zoology 52 (1), pp. 97-145 : 120

Cybister rugosus ( MacLeay, 1825)

Trochalus rugosus MacLeay, 1825: 136 .

Cybister indicus Aubé, 1838: 62 .

Cybister rugosus Sharp, 1882: 745 ; Régimbart, 1899: 347; Zimmermann, 1920: 264.

Cybister rugosus (MacLeay) - Vazirani, 1977: 92; Yano at al., 1983a: 17; Chen et al., 1998: 27; Nilsson, 2001: 89.

Material examined. – 1 specimen – Other areas - 1 ex., from fish food, 10 Jul.1990, coll. C.H. Teo ZRC). No further data available .

Distribution. – Southern Vietnam, Thailand, Cambodia, Peninsular Malaysia, Indonesia: Batam, Sumatra, Java and Kalimantan ( MacLeay, 1825; Régimbart, 1899; Zimmermann, 1927). Singapore!

Ecology. – In other parts of Southeast Asia Cybister rugosus has been collected in various types of mostly perennial standing waters such as ponds, paddy fields ( Yano et al., 1983a), fish ponds, shallow lakes and ditches. Cybister rugosus is frequently attracted to light but much rarer than C. tripunctatus lateralis . The species is sold as food in Thailand ( Chen et al., 1998).