Perissommatidae

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Perissommatidae
Temporal range: Middle Jurassic–Recent
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Perissomma mcalpinei.jpg
Scientific classification e
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Suborder: Nematocera
Infraorder: Perissommatomorpha
Family: Perissommatidae
Colless, 1962[1]
Genera
  • †
  • †Perissordes[2]
  • †Collessomma
  • †Gurvaniella
  • †Limnorhyphus

The Perissommatidae are a family of flies (Diptera) that was proposed in 1962 by Donald Colless based on the species Perissomma fusca from Australia. The family now includes five extant species within the single genus Perissomma, four from Australia and one from Chile. The Perissommatidae are unusual as they appear to have four compound eyes. They have a small slender body less than 2 mm in length. Their wings are large in comparison to their bodies and subsequently their flight is weak. Preferring high-altitude forest environments, adults only fly in the winter. The larvae live in decaying leaf litter in wet sclerophyll or cool rain forests. Some species are suspected to be associated with fungi. In the case of Perissomma macalpinei, numbers of adults have been observed congregating in clumps of foliage and rising in short, zigzag flights in the sunlight above the foliage for short periods before descending.[3][4]

Fossils of the family are known from the Middle Jurassic to Early Cretaceous of Eastern and Northern Asia.[5]

Extinct genera[]

After[5]

  • † Hong 1983, Haifanggou Formation, China, Callovian
  • Subfamily Perissommatinae Colless 1962
    • † Lukashevich and Blagoderov 2020 Khasurty locality, Russia, Aptian, , Mongolia, Aptian
    • † Kovalev 1986 , Mongolia, Aptian
    • † Kovalev 1985 Itat Formation, Russia, Bathonian, Shar Teeg, Mongolia, Tithonian , Russia, Aptian
  • †subfamily Rasnicynommatinae Lukashevich 2011
    • † Lukashevich 2011 Shar Teeg, Mongolia, Tithonian
  • †subfamily Perissordinae Lukashevich et al. 2006
    • † Lukashevich et al. 2006 Daohugou, China, Callovian

References[]

  1. ^ Colless, DH (1962). "A new Australian genus and family of Diptera (Nematocera: Perissommatidae)". Australian Journal of Zoology. 10 (3): 519. doi:10.1071/ZO9620519.
  2. ^ Lukashevich, Elena D.; Huang, Di-Ying; Lin, Qi-Bin (2006). "Rare families of lower Diptera (Hennigmatidae, Blephariceridae, Perissommatidae) from the Jurassic of China" (PDF). Studia dipterologica. 13: 127–143.
  3. ^ McAlpine, David K. (1987). "Note on aerial swarming of 'Perissomma' (Diptera: Perissommatidae)". Australian Entomologist. 14 (1–2): 29–30.
  4. ^ Colless, DH (1969). "The genus Perissomma (Diptera : Perissommatidae) with new species from Australia and Chile". Australian Journal of Zoology. 17 (4): 719. doi:10.1071/ZO9690719.
  5. ^ a b Lukashevich, Elena D.; Blagoderov, Vladimir A. (2020). ". Review of Mesozoic Perissommatidae (Insecta: Diptera)". Zootaxa. 4718 (4): 481–496. doi:10.11646/zootaxa.4718.4.3. PMID 32230004.

External links[]

  • Short account By Evenhuis, N. L. [1]
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