TL;DR: The type species of the genus Myrmarachne melanocephala MacLeay, 1839, is rediscovered and redescribed, and a neotype is here designated, which results in a homonym with MyrmarACHne galianoae Cutler, 1981.
Abstract: Myrmarachne melanocephala MacLeay, 1839, type species of the genus Myrmarachne MacLeay, 1839, is rediscovered and redescribed, and a neotype is here designated. Five new synonyms of M. melanocephala are proposed: M. contracta (Karsch, 1880) [lectotype here designated], M. providens (Peckham & Peckham, 1892), M. ramosa Badcock, 1918, M. albicrurata Badcock, 1918, and M. lateralis Badcock, 1918. Myrmarachne melanocephala is shown to be a widespread species in southern Asia that mimics the ant Tetraponera rufonigra (Jerdon). Myrmarachne christae (Proszynski, 2001) and Myrmarachne galianoae (Proszynski, 2001) are transferred from Damoetas, new combinations. The latter results in a homonym with Myrmarachne galianoae Cutler, 1981: we rename the species Myrmarachne mariaelenae Edwards & Benjamin, replacement name. Further characterization of the species groups of Myrmarachne is presented, related genera are discussed, and a preliminary phylogeny of the Myrmarachninae is given.
TL;DR: A taxonomic and phylogenetic study based on morphological characters revealed the type species of the genus Lucida Evans, 1955, Lucida lucia to be paraphyletic to other species of this genus, and a new genus, Ginungagapus gen. nov, is erected including four species previously placed in Lucida.
Abstract: A taxonomic and phylogenetic study based on morphological characters revealed the type species of the genus Lucida Evans, 1955, Lucida lucia (Capronnier, 1874) to be paraphyletic to other species of the genus. As a result, a new genus, Ginungagapus gen. nov., is erected including four species previously placed in Lucida: Ginungagapus schmithi (Bell, 1930) comb. nov., Ginungagapus bocus (Bell, 1947) comb. nov., Ginungagapus ranesus (Schaus, 1902) comb. nov., and Ginungagapus rogan (Evans, 1955) comb. nov.; and four new species are added: Ginungagapus awarreni, sp. nov., Ginungagapus tangerinii, sp. nov., Ginungagapus fiedleri, sp. nov. and Ginungagapus brasilia, sp. nov. The new genus is taxonomically revised, genitalia are illustrated, except of the female of G. rogan (Evans, 1955) and of the male of G. brasilia, sp. nov., which are still unknown. An identification key is provided.