The following new records of Hydradephaga from the Maltese Islands
are reported: Gyrinus (Gyrinus) urinator Illiger, Agabus (Gaurodytes) bipustulatus
(Linnaeus), Cybister (Cybister) tripunctatus africanus Laporte, Eretes griseus
(Fabricius) and Hydaticus (Prodaticus) leander (Rossi). With the exception of Eretes
griseus (Fabricius), all other records are also new for the fauna of the islands of the
Sicilian Channel. The presence in Malta of Colymbetes fuscus (Linnaeus), recorded
only in the beginning of last century, is confirmed. Dytiscus circumflexus Fabricius is
also recorded for the first time for the island of Gozo.peer-reviewe
