david.beadle:
Corixini (Water Boatmen) - Bruce County, Ontario
david.beadle:
Hesperocorixa (Water Boatmen) - Prince Edward County, Ontario
david.beadle:
Lethocerus americanus (American Giant Water Bug) - Parry Sound District, Ontario
david.beadle:
Lethocerus americanus (American Giant Water Bug) - Parry Sound District, Ontario
david.beadle:
Tribe Corixini (Water Boatmen) - Essex County, Ontario
david.beadle:
Notonecta irrorata (Backswimmers) - Toronto, Ontario