Cybister fimbriolatus

Cybister fimbriolatus, the giant diving beetle, is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America and the Neotropics.^{[1][2][3][4][5]}

Giant diving beetle, Cybister fimbriolatus

Giant diving beetle, Cybister fimbriolatus

Cybister fimbriolatus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Adephaga
Family:	Dytiscidae
Genus:	Cybister
Species:	C. fimbriolatus
Binomial name
Cybister fimbriolatus (Say, 1825)

Overview

These beetles are active in summer and live in ponds or ditches, feeding on other aquatic arthropods. They are nocturnal but sometimes active during the day. For mating, the males have expanded front feet to help them grab hold of a female.

Taxonomy

Subspecies

There were formerly two subspecies that belonged to the species Cybister fimbriolatus:

• Cybister fimbriolatus crotchi Wilke, 1920
• Cybister fimbriolatus fimbriolatus (Say, 1825)

Synonyms

The species has these synonyms:^[5][6]

• Dytiscus dissimilis (Dejean, 1821)
• Dytiscus fimbriolatus (Say, 1823)
• Cybister flavocinctus (Aubé, 1838)
• Cybister dissimilis (Aubé, 1838)
• Cybister ellipticus (LeConte, 1852)
• Cybister cavicollis (Sharp, 1887)
• Cybister crotchi (Wilke, 1920)