Freshwater Macroinvertebrates in Hong Kong

Eretes sticticus

Family: Dytiscidae
Subfamily: Dytiscinae
Tribe: Eretini

Habitat: Wetland

General appearance: Medium size; 12.0 - 14.0 mm. Side margins of pronotom bordered. Prosternal process pointed at the end. Side margins of elytron on the posterior half serrated with a series of spines; Elytra punctate with each puncture bearing a black spot. Posterior margins of first four segments of hind tarsi transersely with a coarse frnge of flat, adpressed, golden yellow setae. Only female specimen is presented here for E. sticticus.

Fullview
Cranium and pronotum (dorsal view)
Head in ventral view
Prosternal and hind coxal process
Right hind tarsi (ventral view)
Posterior of left elytra

 

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.