Hydrovatus pictulus Sharp, 1882

Ramahandrison, Andriamirado Tahina, Rakouth, Bakolimalala & Manuel, Michael, 2022, The aquatic Adephaga of the Makay, central-western Madagascar, with description of two new diving beetle species (Coleoptera, Gyrinidae, Haliplidae, Noteridae, Dytiscidae), ZooKeys 1127, pp. 1-60 : 1

Hydrovatus pictulus Sharp, 1882

H. dilutus H. J. Kolbe, 1883; H. scymnoides Régimbart, 1895.

Type locality.

Madagascar.

Material examined.

5 ♂♂, 1 ♀: MAK-2; 1 ♂: MAK-62.

Distribution.

Sub-Saharan Africa, Madagascar ( Guignot 1959-1961; Biström 1996). In Madagascar, widespread.

Habitat in study area.

Same as Hydrovatus otiosus (see above). Throughout Madagascar, this species has an ecological optimum in the calm parts of rivers and streams or their satellite puddles and pools, with sandy or muddy bottom and few or no vegetation and is quite tolerant to anthropogenic disturbance.