The aquatic Adephaga of the Makay, central-western Madagascar, with description of two new diving beetle species (Coleoptera, Gyrinidae, Haliplidae, Noteridae, Dytiscidae) Author Ramahandrison, Andriamirado Tahina https://orcid.org/0000-0002-0833-8730 Departement de Biologie et Ecologie Vegetales, Faculte des Sciences, BP 906, Universite d'Antananarivo, Antananarivo, Madagascar & Sorbonne Universite, Institut de Systematique, Evolution, Biodiversite (UMR 7205), MNHN SU CNRS EPHE UA, Case 05, 7 quai St Bernard, Paris, France Author Rakouth, Bakolimalala https://orcid.org/0000-0001-5710-2006 Departement de Biologie et Ecologie Vegetales, Faculte des Sciences, BP 906, Universite d'Antananarivo, Antananarivo, Madagascar Author Manuel, Michael Sorbonne Universite, Institut de Systematique, Evolution, Biodiversite (UMR 7205), MNHN SU CNRS EPHE UA, Case 05, 7 quai St Bernard, Paris, France manuel1570@yahoo.fr text ZooKeys 2022 2022-11-02 1127 1 60 http://dx.doi.org/10.3897/zookeys.1127.85737 journal article http://dx.doi.org/10.3897/zookeys.1127.85737 1313-2970-1127-1 4759AFC32EFD47A7853F645FB32829BA D72971CE12A85992AFFD69F186474E85 Dineutus sinuosipennis sinuosipennis Castelnau, 1840 Dineutus bidens = D. bidens Vollenhoven, 1869; D. denticulatus Regimbart , 1882. Type locality. Tibet (erroneous locality?). Material examined. 1 ♂ , 4 ♀♀ : MAK-27; 3 ♂♂ , 4 ♀♀ : MAK-37B; 1 ♂ , 1 ♀ : MAK-40A; 1 ♂ : MAK-40B; 1 ♀ : MAK-48; 1 ♂ , 5 ♀♀ : MAK-52; 5 ♂♂ , 9 ♀♀ : MAK-55; 1 ♀ : MAK-58. Distribution. Madagascar, widespread ( Legros 1951 ; Brinck 1955 ; Bameul 1984 ). Another subspecies, D. sinuosipennis comorensis Regimbart , 1892, is present in the Comoro archipelago ( Brinck 1955 ; Wewalka 1980 ). Habitat in study area. Same as D. proximus (both species often syntopic). This species is less abundant than D. proximus in the Makay massif.