Abstract
Taxonomic notes, a checklist, and a key to most of the 89 recognized, currently named species of Myrmecia are presented. Twenty-seven species or species complexes are discussed in detail, and eight species described as new—M. acuta (Western Australia), M. borealis (N. Queensland), M. browningi (South Australia), M. erecta (WA, SA), M. eungellensis (N. Qld), M. fabricii (N. Qld), M. loweryi (New South Wales, Australian Capital Territory), and M. tridentata (NSW). Fourteen new synonyms are proposed (senior names listed first): M. brevinoda Forel = M. decipians Clark = M. longinodis Clark; M. froggatti Forel = M. eupoecila (Clark) = M. excavata (Clark) = M. greavesi (Clark); M. fulgida Clark = M. suttoni Clark; M. harderi Forel = M. celaena (Clark); M. nigriceps Mayr = M. fasciata Clark; M. occidentalis (Clark) = M. opaca (Clark); M. pavida Clark = M. atrata Clark; M. rowlandi Forel = M. cordata Clark = M. cardigaster Brown; M. testaceipes (Clark) = M. dixoni (Clark); M. vindex F. Smith = M. vindex basirufa Forel. M. athertonensis Forel and M. fuscipes Clark are reinstated from junior synonymy, and 4 previous subspecies, M. chasei ludlowi Crawley, M. flavicoma minuscula Forel, M. maura formosa Wheeler and M. michaelseni queenslandica Forel, are raised to species.