Infraorder Gerromorpha

Superfamily Gerroidea (Water Striders, Riffle Bugs)
Composed of three Australian families

Family Gerridae (Pond Skaters, Small Water Striders)
 

Family Veliidae (Riffle bugs, Water Striders)

     

Family Hermatobatidae (Coral Treaders)
(Currently empty)

Superfamily Hebroidea (Velvet Water Bugs)
Composed of a single Australian family.
Family Hebridae 
 

Superfamily Hydrometroidea
Composed of a single Australian family.
Family Hydrometridae
(Currently empty)

Superfamily Mesovelioidea  (Water Treaders)
Composed of a single Australian family.
Family Mesoveliidae
(Currently empty)