Two tribes of Mecopodinae (Mecopodini and Sexavaini) are represented in Australia. Both are confined to the tropics. The Mecopodini have been covered recently (see Rentz et al., 2006) and that group comprises a single genus with four species that live in grassy situations, often adjacent to rainforests. The Sexavaini is represented by a single species of Segestidea I. Bolívar, a genus with several species to the north of Australia. Some Segestidea species are well known to cause damage to coconuts. The single species, S. queenslandica, the Queensland Palm Katydid, is apparently facultatively parthenogenetic and is described with notes on its biology and distribution.