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. They are characterised by hairy wings, unusual in the order Diptera, and have long antennae. Some Cecidomyiids are also known for the strange phenomenon of paedogenesis in which the larval stage reproduces without maturing first. In some species, the daughter larvae consume the mother, while in others, reproduction occurs later on in the egg or pupa.
Solidago canadensis, known as Canada goldenrod or Canadian goldenrod, is an herbaceous perennial plant of the family Asteraceae. It is native to northeastern and north-central North America and often forms colonies of upright growing plants, with many small yellow flowers in a branching inflorescence held above the foliage. It is an invasive plant in other parts of the continent and several areas worldwide, including Europe and Asia. It is grown as an ornamental in flower gardens.
Solidago altissima, the tall goldenrod or late goldenrod, is a North American species of goldenrod in the family Asteraceae which is widespread across much of Canada, the United States, and northern Mexico. It is common in much of its range and fairly tolerant of landscapes which have been disturbed by humans. It has become naturalized in many parts of the world.
Rhopalomyia pedicellata is a species of gall midges, insects in the family Cecidomyiidae.
Rhopalomyia is a genus of gall midges, insects in the family Cecidomyiidae. There are at least 267 described species in Rhopalomyia. Most species in this genus induce galls on plants in the Asteraceae. This genus has a cosmopolitan distribution. Rhopalomyia was first established by Ewald Heinrich Rübsaamen in 1892.
Rhopalomyia baccharis, the coyote brush twisted stem gall midge, is a species of gall midges, insects in the family Cecidomyiidae.
Rhopalomyia pomum, the sponge gall midge, is a species of gall midges, insects in the family Cecidomyiidae. The midges form leaf galls on Great Basin sagebrush.
Rhopalomyia anthophilathe Downy Flower Gall Midgeis a species of gall midges, insects in the family Cecidomyiidae. It induces galls on the host Solidago altissima across much of North America.
Rhopalomyia californica, the coyote brush bud gall midge, is a species of gall midges, insects in the family Cecidomyiidae.
Rhopalomyia solidaginis, the goldenrod bunch gall, is a species of gall midges, insects in the family Cecidomyiidae The galls of this species have the following host species of goldenrods:Solidago altissima, Solidago canadensis, Solidago rugosa They have been found across eastern North American.
Rhopalomyia lobata is a species of gall midges, insects in the family Cecidomyiidae. The galls form on stems and buds of Euthamia graminifolia the grass-leaved goldenrod. The species ranges from Florida to Mississippi, north to Oregon, New England and most of Canada.
Rhopalomyia audibertiae, the sage leaf gall midge, is a species of gall midges, insects in the family Cecidomyiidae.
Asphondylia solidaginis is a species of gall midge (Cecidomyiidae) that induces galls on goldenrods in North America where it is widespread. It was first described by William Beutenmuller in 1907.
Rhopalomyia chrysothamni is a species of gall midges, insects in the family Cecidomyiidae. The midge causes very small, conical-tubular stem galls on rubber rabbitbrush [Ericameria nauseosa].
Rhopalomyia hirtipes is a species of gall midges, insects in the family Cecidomyiidae. They are found in the eastern part of North American on buds and stems of Solidago juncea
Rhopalomyia grossulariae, the gooseberry gall midge, is a species of gall midges, insects in the family Cecidomyiidae.
Asteromyia carbonifera is a species of gall midges in the family Cecidomyiidae. It creates galls on Solidago plants. Females can lay up to 300 eggs at a time and often collect conidia of the fungus Botryosphaeria dothidea, which is deposited on the plant alongside the eggs. The larvae grow within the gall that the fungus creates, a form of mutualism.
Dasineura folliculi is a species of gall midge that induces galls on several species of goldenrod in North America. It was first described by Ephraim Porter Felt in 1908. Adults live for only one to three days, mating near the goldenrod before laying eggs between leaves. Larvae are gregarious, with anywhere between five and eighty in a gall. The larvae mature within three to four weeks of hatching.
Rhopalomyia capitata, the giant goldenrod bunch gall, is a species of gall midge in the family Cecidomyiidae. It is found across North America. They have been collected from Solidago canadensis, Solidago gigantea, and Solidago leavenworthiigallormers species page
Rhopalomyia thompsoni is a species of gall midges, insects in the family Cecidomyiidae. It induces galls on the host Solidago altissima across much of North America.
