Freshwater Macroinvertebrates in Hong Kong

Cybister tripunctatus orientalis

Family: Dytiscidae

Habitat: Wetland

General appearance: A large species, with total length of about 25-27 mm. Yellow lateral band on elytra and pronotum like most Cybister spp. Hind coxal lines distinct.

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

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