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.

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.

[1] 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.

[1] Overall the vein structure of Allorapisma is most similar to the genus Principiala, known from Cretaceous fossils found in both Brazil and England.

[1] The holotype and paratype are both composed of partially complete fore-wings, each of which is missing a sections of the lower wing edge.