Freshwater Macroinvertebrates in Hong Kong

Copelatus oblitus

Family: Dytiscidae
Subfamily: Copelatinae
Tribe: Copelatini

Habitat: Wetland

General appearance: Body outline fairly continuous; hind claws are of equal length; pronotum narrowly but clearly bordered laterally; Six conspicious elytra striae; all elytra striae ends near prosternal side; hind coxal lines well impressed and nearly touching median line, turning outward at a near-right angle into hind coxal process. Differ from Copelatus cf tenebrosus in that all elytra striae end close to the base of elytra.

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

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