Notonecta glauca
Encyclopedia
Notonecta glauca is a species of backswimmer
. It the most widespread and abundant of the four British notonectids.
Notonectidae
Notonectidae is a cosmopolitan family of aquatic insects in the order Hemiptera, commonly called backswimmers because they swim upside down. They are all predators, up to nearly 2 cm in size. They are similar in appearance to Corixidae , but can be separated by differences in their...
. It the most widespread and abundant of the four British notonectids.