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Leaf galls. This is a list of insect galls arranged into families. This list is incomplete; you can help by adding missing items. (January 2023) Coleoptera Beetles
Gall-inducing insects are usually species-specific and sometimes tissue-specific on the plants they gall. Gall-inducing insects include gall wasps, gall midges, gall flies, leaf-miner flies, aphids, scale insects, psyllids, thrips, gall moths, and weevils. [36] Many gall insects remain to be described. Estimates range up to more than 210,000 ...
The gall itself is a typical oak apple gall in appearance, roughly spherical and varies from greenish to reddish or orange depending on host, age and environmental conditions. The galls range in size from a 2–14 cm across and often contain multiple larvae as well as parasites and other species that form a mutual relationship by feeding off ...
Galls are growth deformities induced in certain plants by various insects which are mostly species-specific. Galls induced by insects can be viewed as an extended phenotype of the inducing insect, and gall-inducing insects specialize on their host plants, often to a greater extent than insects that feed on the same plant without creating galls. [2]
Pemphigus spyrothecae, or the poplar spiral gall aphid, is a social insect which exhibits apparent altruistic behaviors. The aphids form galls and act as colony defenders, at times sacrificing their own lives to do so.
Cecidomyiidae is a family of flies known as gall midges or gall gnats. As the name implies, the larvae of most gall midges feed within plant tissue, creating abnormal plant growths called galls . Cecidomyiidae are very fragile small insects usually only 2–3 mm (0.079–0.118 in) in length; many are less than 1 mm (0.039 in) long.
Cylindrococcus is a genus of scale insects that induces galls on plants of the genus Allocasuarina. There are two described species of Cylindrococcus, both of which occur only in Australia. [1] The galls of adult females (10–30 mm long) look somewhat similar to the cone-like "fruit" of the host plant and might be mistaken for such.
Galls are induced by female Pemphigus populitransversus on the base of leaves in black cottonwood, narrowleaf cottonwood, fremont cottonwood, and aspen trees. The female P. populitransversus then lays her eggs inside of it. These galls are green or red, fleshy, smooth, and up to 14 mm in diameter. A slit allows the aphids to exit the gall. [1]