The insect was discovered in St Brelade on Sunday after apparently being disturbed from hibernation.
Last year, the first queen was spotted on 6 February.
Islanders are now being urged to be on the look-out for Asian hornet queens, which will soon start to emerge from their winter hibernation and attempt to form primary nests.
In a post on the Jersey Asian Hornet Group’s Facebook page, Alastair Christie, Jersey’s Asian hornet co-ordinator, said: ‘Please be vigilant – the queens may be hibernating in sheds, lofts and even (like queen wasps) in the folds of curtains!
‘If you find anything of concern please call 441633, or email asianhornet@gov.je with a photograph, if possible.’
More than 80 Asian hornet nests were found in Jersey last year.
Meanwhile, Jersey is now offering a master’s course of research-led study in Island biodiversity and conservation which launched last year in the Jersey International Centre of Advanced Studies (JICAS), it has been announced.
