Canthydrus ritsemae ( Régimbart, 1880 )

Hendrich, Lars & Balke, Michael, 2004, Aquatic Coleoptera Of Singapore: Species Richness, Ecology And Conservation #, Raffles Bulletin of Zoology 52 (1), pp. 97-145 : 108

Canthydrus ritsemae ( Régimbart, 1880)

Hydrocanthus ritsemae Régimbart, 1880: 213 .

Canthydrus javanus Wehncke, 1883: 149 .

Canthydrus pseudoflavus Rocchi, 1986: 31 .

Canthydrus ritsemae ( Régimbart, 1880) - Wewalka, 1992: 806, and references therein.

Material known. – Number? – “ Singapore ”, coll. C. J. Saunders ( BMNH) ( Wewalka, 1992). Specimens not seen.

Distribution. – China, India, Indonesia [Kalimantan, Java, Sumatra], Malaysia, Myanmar, Nepal, Singapore, Thailand, Vietnam (Nilsson, 1995; Wewalka, 1992).

Ecology. – In other countries of Southeast Asia C. ritsemae inhabits shallow water of open or semi-shaded swamps; at the edge of artificial ponds (e.g., fish ponds or paddy fields); and in slowly flowing ditches and streams. The species is also attracted to light.