Yes
A giant water bug can weigh anywhere from 2 to 5 grams, depending on the species and its size.
everywhere in rivers
The biological name of the giant water bug in binomial nomenclature is Belostomatidae.
Wear steel-toed boots.
A shell, insides (guts), blood, gills
giant water bug
It is unknown what the largest bug in Canada is. However, it is believed that between Canada and the U.S. that the giant water bug is one of the largest insects.
under water
they usually eat insects, fish, frogs ans small water birds
The name of the black bug with a hard shell is a beetle.
Amur giant water bug (Lethocerus deyrollei) is the name of the biggest bug in Russia. A bug technically must be a member of the Heteroptera suborder of the Hemiptera insect/true bugs order, whose largest-sized members are always giant water bugs such as the 1.9- to 2.6-inch (4.8- to 6.5-centimeter) invertebrate in question.
The crane fly is a bug that looks like a giant mosquito.