Definition of saucer bug in English:

saucer bug

noun

  • A disc-shaped predatory water bug which lives in muddy ponds and breathes by means of an air bubble around the body.

    • ‘The Saucer bug crawls over the bottom under the plants to seek a safe hiding spot.’
    • ‘The Saucer Bug has a bubble of air trapped underneath its body as it swims around in the water using its long, hairy back legs.’
    • ‘The Saucer Bug creeps among vegetation under the water, attacking insect larvae, water lice and other small creatures.’