Notes on the Ant GeneraRomblonellaandWillowsiella, with Comments on Their Affinities, and the First Descriptions of Australian Species (Hymenoptera: Formicidae: Myrmicinae)

The originally monotypic genus Romblonella and its type-species R. grandinodis were described by Wheeler (1935) from the small central Philippines Island of Romblon (12 33’N; 122 17’E). Two species congeneric with grandinodis had in fact been described previously in the genus Tetramorium Mayr, namely R. scrobiferum (Emery, 1897) (Berlinhafen (= Aitape) (03 10’S; 142 17’E), Papua, New Guinea), and R. elysii (Mann, 1919) (Malaupina (= Malapina) I. (0951’N; 16050’E), Three Sisters Is, Solomon Islands) (Smith, 1956). Four additional species were later described by Marion R. Smith, as follows: R. townesi (1953A; Mt. Lasso, Tinian I. (1458’N; 14538’E), Northern Mariana Is); R. vitiensis (1953A: Wakaya I. (1739’S; 17901’E), Lomaiviti Group, Fiji Is); R. yapensis (1953A; Yap I. (0930’N; 13809’E), Caroline Is); and R. palauensis (1953B; Ulebsechel (-Auluptagel,-Aurapushekaru) I., Belau (-Palau) Group (07 03’N; 134 30’E), Caroline Is).