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

Table 1. List of the species sampled, with indication of status and values of relative frequencies of occurrence (RFO). E: endemic of Madagascar; E*: endemic of the Malagasy region; W (widespread): distribution extending outside the Malagasy region. NbOc (third column): total number of occurrences, i.e., number of samplings in which the species was present out of the 87 samplings performed. For RFO calculated by categories of sites, total number of samplings for each category indicated between parentheses in column headings.

Species	Status	NbOc (RFO %) all samplings (n = 87)	RFO % inner Makay (n = 73)	RFO % peripheral Makay (n = 14)	RFO % forested sites (n = 35)	RFO % semi-forested sites (n = 34)	RFO % non-forested sites (n = 18)
Gyrinidae
Dineutus proximus	E	15 (17.2)	20.6	0	28.6	14.7	0
D. s. sinuosipennis	E	8 (9.2)	11.0	0	14.3	8.8	0
Orectogyrus vicinus	E	5 (5.7)	6.9	0	11.4	2.9	0
Haliplidae
Peltodytes quadratus	E	2 (2.3)	0	14.3	0	0	11.1
Noteridae
Canthydrus concolor	E	1 (1.1)	0	7.1	0	0	5.6
C. flavosignatus	W	2 (2.3)	0	14.3	0	0	11.1
C. guttula	E*	11 (12.6)	5.5	50.0	5.7	2.9	44.4
C. sp. Ma5	?	3 (3.4)	1.4	14.3	0	2.9	11.1
Neohydrocoptus seriatus	W	12 (13.8)	8.2	42.9	8.6	5.9	38.9
N. sp. Ma3	?	3 (3.4)	4.1	0	5.7	2.9	0
Sternocanthus fabiennae	E	2 (2.3)	0	14.3	0	0	11.1
Synchortus asperatus	E	2 (2.3)	0	14.3	0	0	11.1
Dytiscidae
Copelatinae
Copelatus acamas	E	20 (23.0)	27.4	0	25.7	29.4	5.6
C. andobonicus	E	3 (3.4)	4.1	0	5.7	2.9	0
C. polystrigus	W	12 (13.8)	16.4	0	20.0	8.8	11.1
C. ruficapillus	E	21 (24.1)	28.8	0	25.7	32.3	5.6
C. vigintistriatus	E*	4 (4.6)	5.5	0	8.6	2.9	0
C. malavergnorum sp. nov.	E	1 (1.1)	1.4	0	2.9	0	0
C. zanabato sp. nov.	E	2 (2.3)	2.7	0	0	5.9	0
Madaglymbus fairmairei	E	12 (13.8)	16.4	0	20.0	11.8	5.6
Cybistrinae
Cybister cinctus	E	6 (6.9)	0	42.9	0	0	33.3
C. operosus	E	1 (1.1)	1.4	0	0	2.9	0
Dytiscinae, Aciliini
Rhantaticus congestus	W	3 (3.4)	0	21.4	0	0	16.7
Dytiscinae, Eretini
Eretes griseus	W	1 (1.1)	1.4	0	0	0	5.6
Dytiscinae, Hydaticini
Hydaticus dorsiger	W	7 (8.0)	5.5	21.4	2.9	2.9	27.8
H. exclamationis	W	1 (1.1)	1.4	0	0	0	5.6
H. petitii	E	1 (1.1)	1.4	0	0	2.9	0
H. servillianus	W	7 (8.0)	1.4	42.9	2.9	0	33.3
H. sobrinus	E*	5 (5.7)	6.8	0	5.7	8.8	0
Hydroporinae, Bidessini
Bidessus longistriga	E	6 (6.9)	1.4	35.7	0	2.9	27.8
B. perexiguus	E	7 (8.0)	2.7	35.7	0	5.9	27.8
Clypeodytes concivis	E	2 (2.3)	0	14.3	0	0	11.1
C. insularis	E	1 (1.1)	0	7.1	0	0	5.6
C. sp. Ma3	?	1 (1.1)	0	7.1	0	0	5.6
Hydroglyphus capitatus	E*	3 (3.4)	1.4	7.1	0	2.9	5.6
H. geminodes	W	7 (8.0)	2.7	35.7	0	5.9	27.8
H. plagiatus	E	1 (1.1)	1.4	0	0	2.9	0
Liodessus luteopictus	E*	1 (1.1)	1.4	0	2.9	0	0
Pachynectes costulifer	E	5 (5.7)	0	35.7	0	0	27.8
P. sp. Ma1	E	27 (31.0)	35.6	7.1	31.4	44.1	5.6
P. sp. Ma4	E	9 (10.3)	12.3	0	5.7	20.6	0
Pseuduvarus sp. Ma1	?	2 (2.3)	0	14.3	0	0	11.1
Uvarus betsimisarakus	E	1 (1.1)	0	7.1	0	0	5.6
U. rivulorum	E	5 (5.7)	1.4	28.6	0	2.9	22.2
Yola costipennis	E	8 (9.2)	1.4	50.0	0	2.9	38.9
Hydroporinae, Hydrovatini
Hydrovatus acuminatus	W	10 (11.5)	4.1	50.0	2.9	5.9	38.9
H. capnius	W	2 (2.3)	0	14.3	0	0	11.1
H. crassicornis	E	3 (3.4)	1.4	7.1	0	2.9	5.6
H. cruentatus	E	2 (2.3)	0	14.3	0	0	11.1
H. dentatus	W	1 (1.1)	0	7.1	0	0	5.6
H. otiosus	E	2 (2.3)	0	14.3	0	0	11.1
H. parvulus	W	3 (3.4)	1.4	7.1	0	2.9	5.6
H. pictulus	W	2 (2.3)	0	14.3	0	0	11.1
H. testudinarius	E	1 (1.1)	0	7.1	0	0	5.6
H. sp. Ma7	?	1 (1.1)	0	7.1	0	0	5.6
Hydroporinae, Hyphydrini
Hyphydrus separandus	E*	21 (24.1)	28.8	0	25.7	32.4	5.6
H. stipes	E	1 (1.1)	1.4	0	0	2.9	0
Hydroporinae, Methlini
Methles sp. Ma1	?	2 (2.3)	2.7	0	2.9	2.9	0
M. sp. Ma5	?	7 (8.0)	4.1	28.6	2.9	5.9	22.2
Laccophilinae
Africophilus bartolozzii	E	4 (4.6)	5.5	0	8.6	0	5.6
A. nesiotes	W	8 (9.2)	11.0	0	17.1	5.9	0
Laccophilus addendus	E	9 (10.3)	8.2	21.4	5.7	5.9	27.8
L. flaveolus	W	1 (1.1)	0	7.1	0	0	5.6
L. insularum	E	1 (1.1)	1.4	0	0	2.9	0
L. luctuosus	E	1 (1.1)	0	7.1	0	0	5.6
L. makay	E	48 (55.2)	65.6	0	62.9	73.5	5.6
L. pallescens	W	4 (4.6)	0	28.6	0	0	22.2
L. posticus	E*	19 (21.8)	13.7	64.3	8.6	14.7	61.1
L. rivulosus	E	2 (2.3)	0	14.3	0	0	11.1
L. seyrigi	E	1 (1.1)	0	7.1	0	0	5.6
L. transversovittatus	E	3 (3.4)	4.1	0	2.9	5.9	0
L. sp. Ma19	E	1 (1.1)	0	7.1	0	0	5.6
Neptosternus oblongus	E	2 (2.3)	2.7	0	0	5.9	0
Philaccolus elongatus	E	1 (1.1)	0	7.1	0	0	5.6