Distribution details in United Kingdom (England)
From CABI Pest map 757 (2011): Present, no details
EPPO Reporting Service (2009/214) : in April 2005, O. maskelli was observed in a garden on 1 tree (Eucalyptus gunnii), in Lambeth, London. In June 2008, the pest was also found at Hyde Hall Gardens in Essex indicating that the gall wasp is spreading in England.
* Badmin J (2008) Spread of Ophelimus maskelli Ashmead (Hymenoptera: Eulophidae) in south-east England. British Journal of Entomology and Natural History 21(3), 147 (abst.)