Stenus

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Stenus
Stenus biguttatus
Scientific classification
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Stenus[1]

Latreille, 1796

Stenus is a genus of semiaquatic

setae or that have a large body size. Stenus comma is more likely to catch such prey by lunging forward and grabbing them directly with its mandibles rather than using its labium.[3] Stenus species are also known for "skimming" on the water surface using their pygidial gland secretions that act as a surfactant and rapidly propel the beetle fast forward, a phenomenon known as the Marangoni effect
. Stenus comma has been seen to achieve a velocity of 0.75 m/s, and to cover a distance of up to 15 m if the secretion is continuous.[4][5]

Selected species

References

  1. ^ Bugguide Genus Stenus.
  2. ^ Bellamy, C. L. (2010). "Genus Agrilus". A Checklist of World Buprestoidea. Archived from the original on 11 July 2011. Retrieved 10 Jun 2011.
  3. .
  4. .
  5. (PDF) on July 10, 2007.
  6. ^ .
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