backswimmer

Definitions of backswimmer
1

n predaceous aquatic insect that swims on its back and may inflict painful bites

Synonyms:
Notonecta undulata
Type of:
bug, hemipteran, hemipteron, hemipterous insect
insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis

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