A new species of Neolasioptera (Diptera: Cecidomyiidae) from Parkinsonia aculeata (Leguminosae) in Argentina for possible use in biological control in Australia, with a key to Neotropical species of Neolasioptera Author Gagné, Raymond J. Author Kay, Fernando Mc Author Heard, Tim A. text Zootaxa 2011 2866 61 68 journal article 10.5281/zenodo.277453 c45e0c87-440b-47a7-b673-b8db9baede4e 1175-5326 277453 Taxonomy of Neolasioptera Neolasioptera is the largest genus of the tribe Alycaulini . Its species are primary gall makers and have adults with 3- or 4-segmented palpi and fully fused, unlobed female cerci, pupae with a non-brittle exoskeleton, and larvae with the spatula (the characteristic dermal thoracic structure of most cecidomyiids) usually well-developed (with four exceptions), 3 or 4 lateral papillae on each side of the spatula and usually 6–8 papillae (two species with 4) on the terminal segment, which is convex and unlobed ( Gagné 1994 ). Many Neolasioptera species have an associated, presumably symbiotic fungus, but the tunnels of the new species show no sign of fungal hyphae or its excrescence.