Pleidae

Pleidae
Plea minutissima - MHNT
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Suborder: Heteroptera
Infraorder: Nepomorpha
Clade: Tripartita
Superfamily: Notonectoidea
Family: Pleidae
Fieber, 1817
Genera

Neoplea
Paraplea
Plea

Pleidae, the pygmy backswimmers, is a family of aquatic insects in the order Hemiptera (infraorder Nepomorpha, or "true water bugs"). There are 37 species in three genera, distributed across most of the world, except the polar regions and remote oceanic islands.[1]

Pleidae belong to the Tripartita which contains the more advanced lineages of true water bugs, and are closely related to the true backswimmers (Notonectidae), but closer still to the Helotrephidae, another family of tiny Nepomorpha, which usually swim upside-down and, like the Pleidae, have a sensory organ in the center of the clypeus.[2] Either the pygmy backswimmers are united with the Helotrephidae in the superfamily Pleoidea, or these two and the true backswimmers are placed in a single superfamily Notonectoidea.[3]

  1. ^ Zack et al. (2007)
  2. ^ Nowińska, Agnieszka; Brożek, Jolanta (2021-12-14). "Morphology of the Antennal Sensilla of Notonectoidea and Comparison of Evolutionary Changes in Sensilla Types and Distribution in Infraorder Nepomorpha (Insecta: Heteroptera)". Insects. 12 (12): 1121. doi:10.3390/insects12121121. ISSN 2075-4450. PMC 8703933. PMID 34940209.
  3. ^ Hebsgaard et al. (2004)