Archiinocellia is an extinct monotypic genus of Snakefly containing the single species Archiinocellia oligoneura. The specimen was first studied and described by the prolific paleoentomologist Anton Handlirsch from a specimen collected by Canadian geologist and paleontologist Lawrence M. Lambe during fieldwork in central British Columbia. Only a single specimen, the holotype, is known, which was collected on July 21, 1906 from fossil bearing rocks near the Horsefly mine in Horsefly, British Columbia. The genus was named from archi referring to the primitive appearance of the wing characters and Inocellia, the type genus for Inocelliidae, the family the genus was placed in originally. The species name is a combination of oligo in reference to Oligocene, the age the location of the fossil wa