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Perissommatidae
| Description | The Perissommatidae are a family of flies (Diptera) that was newly proposed in 1962. The family contains five species, four from Australia and one from Chile. The Perissommatidae are unusual as they have four 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. In the case of Perissomma macalpinei, numbers of adults have been observed congregate in clumps of foliage, rising in short, zigzag flights in the sunlight above the foliage for short periods before descending. From Wikipedia article at https://en.wikipedia.org/wiki/Perissommatidae, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Source Data |
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| Rank | family | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (GBIF,PBDB) | Life : Animalia : Arthropoda : Insecta : Diptera : Perissommatidae | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Perissommatidae | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extant | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 12 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Extant Size (PBDB) | 3 (25%) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 170 - 166 Ma Middle Jurassic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Environment | terrestrial (based on Insecta) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | actively mobile (based on Arthropoda) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | chitin (based on Insecta) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | E. D. Lukashevich, D. Y. Huang, and Q. B. Lin. 2006. Rare families of lower Diptera (Hennigmatidae, Blephariceridae, Perissommatidae) from the Jurassic of China. Studia Dipterologica 13:127-143 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Perissommatidae |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Perissommatinae subfamily | listed (PBDB) | 3 | 170 Ma Middle Jurassic | 0 Ma Extant | |
| Perissordinae subfamily | listed (PBDB) | 1 | 166 Ma Middle Jurassic | 0 Ma Extant | |
| Rasnicynommatinae ✝ subfamily | listed (PBDB) | 1 | 152 Ma Late Jurassic | 152 Ma Late Jurassic | |
| Limnorhyphus ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 166 Ma Middle Jurassic | 166 Ma Middle Jurassic | |
| Palaeoperissomma ✝ genus | accepted (GBIF) listed (PBDB) | 3 | 170 Ma Middle Jurassic | 125 Ma Early/Lower Cretaceous | |
| Perissomma genus | accepted (GBIF) | No associated record in PBDB | |||
| Perissordes ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 166 Ma Middle Jurassic | 166 Ma Middle Jurassic | |
| Rasnicynomma ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 152 Ma Late Jurassic | 152 Ma Late Jurassic | |
Obsolete Names
| Name | Source | Taxon Rank | Taxonomy |
|---|---|---|---|
| Perissomatidae | GBIF | family | Animalia : Arthropoda : Insecta : Diptera : Perissomatidae |
| Limnorhyphidae | GBIF | family | Animalia : Arthropoda : Insecta : Diptera : Limnorhyphidae |
Synonymy List
| Year | Name and Author |
|---|---|
| 1962 | Perissommatidae Colless |
| 1983 | Limnorhyphidae Hong p. 131 |
| 1985 | Perissommatidae Kovalev p. 113 |
| 2006 | Perissommatidae Lukashevich et al. p. 132 |
| 2007 | Perissommatidae Yeates et al. |
| 2011 | Perissommatidae Lukashevich p. 625 |
| 2011 | Perissommatidae Wiegmann et al. |
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
