First incursion of crown scale Fiorinia coronata Williams & Watson (Hemiptera: Diaspididae) in England, with a review of Fiorinia species detected in Britain and a key to their identification.
Fiorinia coronata Williams & Watson (Hemiptera: Diaspididae) is a polyphagous scale insect native to South East Asia. A large infestation of F. coronata was found on a mature potted Arundinaria sp. (bamboo plant) imported from Thailand, indoors at a restaurant in South Yorkshire, in June 2003. It has also been intercepted by the Plant Health and Seeds Inspectorate on Areca palms imported from Thailand at Gatwick Airport, London, on four occasions between May and July 1998; and on a Calamus sp. (rattan palm) imported from Singapore at Heathrow Airport, London, in July 2012. These are the first findings of this scale insect in England. No statutory action was taken to control the scale in any of these cases, as it is a tropical species that could not establish outdoors and therefore is unlikely to have any significant economic and environmental impact in Britain. In 2005, F. coronata was reported to be present but uncommon on Arecaceae, Poaceae and Sapindaceae in an amenity glasshouse in south-east France. The biology, geographical distribution and economic importance of F. coronata are discussed. In addition, the status of the three other non-native Fiorinia species that have been recorded in Britain is reviewed; none of the three species is currently present in Britain. A morphological key for the identification of the four Fiorina species recorded from Britain is provided. Fiorinia coronata is recorded here for the first time from French Polynesia and Thailand; and F. proboscidaria Green for the first time from Bangladesh and Kenya.