Halyomorpha halys (Stṏl, 1855)

Halyomorpha halys (Stṏl, 1855)

( Heteroptera : Pentatomidae ) has not been reported for the Canary Islands, yet. This invasive Asian species has to be added to the list of Heteroptera which are present on the archipelago, as the species was found on the island of Tenerife : On 17-12-2021, the second author found and photographed an adult specimen of H. halys ( Fig. 1 View Fig ) in an urban environment in Costa Adeje at the southwestern coast of Tenerife (see here). Within the next few days more adult specimens were seen ( Fig. 2 View Fig ). In total, at least six specimens were found, of which four were collected and handed over to the local plant health agency. Furthermore, on 07-03-2023 an adult specimen of H. halys was photographed by another observer in the vicinity of the first cluster of records in Costa Adeje, suggesting an established population. These records represent a dramatic species expansion and raise important questions about the species demography and potential economic and biodiversity impacts on Tenerife. The population could also act as a source for invasion of other Canary Islands.