Bridging the gap: the first record of the diving beetle subfamily Hydrodytinae Miller, 2001 in Guadeloupe

Kevin Scheers , Michaël Manuel (1, 2)

1 ISYEB - Institut de Systématique, Evolution, Biodiversité
2 Evolution Paris Seine

Several specimens of Hydrodytes opalinus (Zimmermann, 1921) were found in a coastal wetland on Basse Terre island in Guadeloupe. This is the first record of the subfamily Hydrodytinae Miller, 2001 from the Caribbean Basin north of Trinidad. This finding sheds light on the biogeographical history of the subfamily by bridging the gap between its main distribution area in continental Central and South America and the isolated occurrence of Hydrodytes dodgei (Young, 1989) in Florida. The habitus and some female reproductive structures of the specimens are illustrated.

Mots clés: Dytiscidae; water beetles; Antilles; Guadeloupe; Hydrodytes; new record

Domaines: Systématique, phylogénie et taxonomie

Kevin Scheers, Michaël Manuel. Bridging the gap: the first record of the diving beetle subfamily Hydrodytinae Miller, 2001 in Guadeloupe. Spixiana, 2019, 42 (1), pp.15-18. ⟨mnhn-03963255⟩