Neohydrocoptus sp. Ma3

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

Neohydrocoptus sp. Ma3

Material examined.

3 ♂♂, 2 ♀♀: MAK-43; 2 ♀♀: MAK-44C; 4 ♂♂, 1 ♀: MAK-56.

Note.

This species is smaller than N. seriatus and the elytra do not bear additional serial groups of punctures beyond discal and lateral puncture rows. External features and the shape of the aedeagus evoke N. aethiopicus (J. Balfour-Browne, 1961), a widespread sub-Saharan species, but examination of type material in the context of a revision will be necessary to confirm the identity of this species.

Distribution.

Madagascar, widespread but not very common.

Habitat in study area.

This species was sampled at three sites in inner Makay, in slowly flowing lotic habitats and a dead river arm, in forested or semi-forested contexts without anthropogenic disturbance. These biotopes had sandy bottoms with moderate abundance of plant debris. Two of the sites were surrounded by a well-developed hygrophilous vegetation and contained cyanobacteria.