Freshwater Macroinvertebrates in Hong Kong

Rhantus sp.

Family: Dytiscidae
Subfamily: Colymbetinae
Tribe: Colymbetini

Habitat: Wetland

General appearance: Dense black speckles on yellow elytra. Prosternal process convex to carinate.

Fullview
Cranium and pronotum (dorsal view)
Head in ventral view
Hind coxal process
Right protarsi (ventral view)
Right hind tarsi (ventral view)

 

Reference:
Pederzani, F. (1995). Keys to the identification of the genera and subgenera of adult Dytiscidae (sensu lato) of the world (Coleoptera Dytiscidae). Atti dell'Accademia Roveretana degli Agiati, a, 244, 5-83.