Megadytes ducalis

Megadytes ducalis is a species of water beetle in the family Dytiscidae. It is the largest species in the family. Until recently, the species was only known from a single specimen that was collected in the 19th century from Brazil, but more specimens, also collected in the 19th century from Brazil, were discovered in 2019. Although listed as extinct by the IUCN, the limited studies conducted on water beetles in Brazil means that it might still survive.

Megadytes ducalis
Holotype of Megadytes ducalis, housed in the Natural History Museum, London
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Dytiscidae
Genus: Megadytes
Species:
M. ducalis
Binomial name
Megadytes ducalis
Sharp, 1882
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