A new species recently collected in Papua New Guinea, Microtrigonia sinuosa sp. nov. (Holotype ♂ from upper Sepik Basin), is described, illustrated and discussed. A revised key to the genus is presented.
Nannophya fenshami sp. nov., a tiny libellulid dragonfly is described from an artesian spring wetland in Queensland. Diagnostic characters of male, female and larva are presented and illustrated and the probable affinities of the species are discussed.