Canthydrus sp. Ma5

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

Canthydrus sp. Ma5

Material examined.

1 ♀: MAK-20; 1 ♂, 3 ♀♀: MAK-60; 3 ♀♀: MAK-61.

Note.

This species is very similar to C. flavosignatus but smaller and with a slightly different shape of the apex of the median lobe of aedeagus in lateral view. The Malagasy species of Noteridae are in great need of revision, and in the current state of knowledge we cannot assign a name to this species.

Distribution.

Madagascar. In addition to the specimens from the Makay, we also have specimens from Namoroka (north-eastern part of the island).

Habitat in study area.

Species collected in permanent lentic environments in open peripheral sites, with clay bottom, clear water and presence of vegetation. One of the collecting sites was a rice field.