Gall-inducing insect Gall-inducing insect A gall-inducing insect is any insect that can cause the growth of galls within plants. The term gall fly is also used to cover these species, although most are not true flies. There are several groups of insects that meet this description. They include the gall wasps, scales, gall midges, aphids, psyllids and certain species of leafminer flies. Galls are growth deformities induced in certain plants by various insects which are mostly species-specific. The gall's form or type depends on what organism is attacking the plant and where the plant is being attacked. Based on the form, there
Jack jumper ant in his "Catalogue of hymenopterous insects in the collection of the British Museum part VI", under the binomial name "Myrmecia pilosula" from specimens he collected in Hobart in Tasmania. There, Smith described the specimens of a worker, queen and male. The type specimen is located in the British Museum in London. In 1922, American entomologist William Morton Wheeler established the subgenus "Halmamyrmecia" characterised by its jumping behaviour, of which the jack jumper ant was designated as the type species. However, John Clark later synonymised "Halmamyrmecia" under the subgenus "Promyrmecia" in 1927 and placed the ant in the subgenus in 1943.