david.beadle:
Cybister fimbriolatus (Fringed Diving Beetle) - Norfolk County, Ontario
david.beadle:
Copelatus glyphicus (Predaceous Diving Beetles) - Toronto, Ontario
david.beadle:
Copelatus glyphicus (Predaceous Diving Beetles) - Toronto, Ontario
david.beadle:
Dytiscus (Predaceous Diving Beetles) - Prince Edward County, Ontario