The loss of the specimen and the mention by Tillyard of a second insect fossil from the same site, later described as Robinjohnia tillyardi resulted in much confusion regarding the taxonomic affiliations of P. patricia. Robinjohnia, a four winged insect which is now placed in the order Mecoptera.
The loss of the specimen and Tillyard's mention of a second insect fossil from the same site, later identified as Robinjohnia tillyardi, led to considerable uncertainty regarding the taxonomic classification of P. patricia. Robinjohnia, a four-winged insect now classified in the order Mecoptera.