Allorapisma
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Allorapisma Temporal range: Ypresian |
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| Allorapisma chuorum holotype wing | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Neuroptera |
| Family: | Ithonidae |
| Genus: |
†Allorapisma Makarkin & Archibald, 2009 |
| Species: | †A. chuorum |
| Binomial name | |
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Allorapisma chuorum Makarkin & Archibald, 2009 |
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Allorapisma is an extinct genus of lacewing in the moth lacewings family Ithonidae. The genus is solely known from two Eocene fossils found in North America. At the time of description the genus was composed of a single species, Allorapisma chuorum.
Allorapisma chuorum is known only from two fossils, the part side of the holotype left fore-wing, specimen number SR 08-14-01, and the part side of a paratype right fore-wing, specimen number SRUI 08-04-01. Both the fossil are currently housed in the collections of the Stonerose Interpretive Center Republic, Washington, US. The specimens are preserved as compression fossils in silty yellow to grayish shale, which were recovered from outcrops of the Tom Thumb Tuff member of the Klondike Mountain Formation. The formation is approximately Early Eocene, Ypresian in age, being radiometrically dated as 49.4 million years old.
Allorapisma was first studied by the paleoentomologists Vladimir N. Makarkin of the Far Eastern Branch of the Russian Academy of Sciences and S. Bruce Archibald from Simon Fraser University in Burnaby, British Columbia. Their 2009 type description of the new genus and species was published in the online journal Zootaxa. The genus name Allorapisma was coined by the researchers as a combination of the moth lacewing type genus Rapisma and the Greek word Allo meaning "other", which is in reference to the similarity of the new genus to Rapisma. The specific epithet chuorum is honor of the Chu family from Kirkland, Washington who found the holotype and donated it to the Stonerose Interpretive Center.
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