Taxonomic study of the genus Promalactis Meyrick (Lepidoptera, Oecophoridae) from Hainan Island, China (II).

Ten species of the genus Promalactis Meyrick, 1908 are treated from Hainan Island, China. Eight species are described as new: P. falciprocessa sp. nov.; P. bilobulata sp. nov.; P. longivalvaris sp. nov.; P. pugnivalvata sp. nov.; P. termelliptica sp. nov.; P. gladiata sp. nov.; P. lucida sp. nov. and P. latitaeniata sp. nov.; the male of P. caperatiella Kim et Park, 2014 and the female of P. clavata Du, Li et Wang, 2011 are reported for the first time in science; and P. caperatiella Kim et Park, 2014 is newly recorded in China. Images of adults and genitalia are provided.