Hemianax ephippiger is an extremely rare subtropical vagrant, first found in The Netherlands in 1995. The second record was in 1996. Both records involved two patrolling males and were part of larger influxes of this species into northern Europe. The record of an individual in an urban garden was added in 2000. No reproduction has been reported to date.
- Nederlandse Vereniging voor Libellenstudie 2002. De Nederlandse libellen (Odonata). Nederlandse Fauna 4: 1-440. Nationaal Natuurhistorisch Museum Naturalis, KNNV Uitgeverij & European Invertebrate Survey-Nederland, Leiden.