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The first records of the iconic lycaenid butterfly  Hypolycaena amasa amasa  Hewitson, [1865], commonly known as Fluffy Tit, from Macau and Hong Kong are reported here, along with its other Chinese records. A review on the knowledge of this species across its full distribution range reveals poor information on the larval food plants, in particular. In Hong Kong, early life stages have been found grazing only on the indigenous and widespread plant  Clerodendrum cyrtophyllum  Turcz. (Verbenaceae). While it is possible that its sudden presence in Macau and Hong Kong, some 150 km southeast of its previously known range, may be related to artificial transport of ornamental plants from mainland China, the fact that the immature stages selectively utilised only  C. cyrtophyllum  as host, while ignoring completely congeneric ornamental plants species of exotic origin (i.e.,  C. japonicum  (Thumb.) Sweet and  C. thomsonae  Balf.), indicates that support for this hypothesis is highly unlikely. Therefore, this may represent a new case of poleward migration of species in response to environmental fluctuations related to ongoing climatic changes, global warming in particular. It is now important to monitor these colonies and establish whether they are able to survive in the medium to long term.

New records of the Fluffy Tit butterfly, Hypolycaena amasa Hewitson, [1865] (Lepidoptera: Lycaenidae: Theclinae), from Macau and Hong Kong