Laccophilus cf pulicarius 

Family: Dytiscidae
Subfamily: Laccophilinae

Habitat: Wetland

General appearance: Sculletum not visible. First four segments of hind tarsi produced into apical lobes in outer half, without swimming hair at their posterior margins. Markings on elytra are in black blotches.

 

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.