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fly,name commonly used for any of a variety of winged insectsinsect,
invertebrate animal of the class Insecta of the phylum Arthropoda. Like other arthropods, an insect has a hard outer covering, or exoskeleton, a segmented body, and jointed legs. Adult insects typically have wings and are the only flying invertebrates.
..... Click the link for more information. , but properly restricted to members of the order Diptera, the true flies, which includes the houseflyhousefly,
common name of the fly Musca domestica, found in most parts of the world. The housefly, a scavenger, does not bite living animals but is dangerous because it carries bacteria and protozoans that cause many serious diseases, e.g.
..... Click the link for more information. , gnatgnat,
common name for any one of a number of small, fragile-looking two-winged flies of the suborder Nematocera, order Diptera, which includes the families Tipulidae (crane flies), Bibionidae (hairflies), Ceratopogonidae (biting midges), Chironomidae (true midges), Cecidomyidae
..... Click the link for more information. , midgemidge,
name for any of numerous minute, fragile flies in several families. The family Chironomidae consists of about 2,000 species, most of which are widely distributed. The herbivorous larvae are found in all freshwaters; the larvae of some species live in saltwater.
..... Click the link for more information. , mosquitomosquito
, small, long-legged insect of the order Diptera, the true flies. The females of most species have piercing and sucking mouth parts and apparently they must feed at least once upon mammalian blood before their eggs can develop properly.
..... Click the link for more information. , and tsetse flytsetse fly
, name for any of several bloodsucking African flies of the genus Glossina, and in the same family as the housefly. The larva of the tsetse fly develops inside the body of the mother until it is ready to pupate in the soil.
..... Click the link for more information. . All have sucking or piercing-and-sucking mouthparts and, except for a few wingless species, bear one pair of wings. The hind wings are reduced to knobbed balancing organs called halteres. All flies undergo complete metamorphosismetamorphosis
[Gr.,=transformation], in zoology, term used to describe a form of development from egg to adult in which there is a series of distinct stages. Many insects, amphibians, mollusks, crustaceans, and fishes undergo metamorphosis, which may involve a change in habitat,
..... Click the link for more information. , i.e., a four-stage development. The larvae, which occupy a wide variety of ecological niches, typically require a moist environment such as rotting flesh, decaying fruit, or the internal organs of other animals (see blowflyblowfly,
name for flies of the family Calliphoridae. Blowflies are about the same size as, and resemble, the housefly; because they are usually metallic blue or green they are also called bluebottle or greenbottle flies.
..... Click the link for more information. ; botflybotfly,
common name for several families of hairy flies whose larvae live as parasites within the bodies of mammals. The horse botfly secretes an irritating substance that is used to attach its eggs to the body hairs of a horse, mule, or donkey.
..... Click the link for more information. ; fruit flyfruit fly,
common name for any of the flies of the families Tephritidae and Drosophilidae. All fruit flies are very small insects that lay their eggs in various plant tissues.
..... Click the link for more information. ; tachinid flytachinid fly
, common name for any of the flies of the family Tachinidae, which parasitize caterpillars, beetles, grasshoppers, and other insects. Tachinid flies are generally small (about the size of houseflies), often bristly, and sometimes brilliantly colored.
..... Click the link for more information. ). Adults often feed on nectar and plant sap, but some, such as the female horseflyhorsefly,
common name for the large hairy flies of the family Tabanidae. Male horseflies feed on pollen and nectar, but the females suck blood as well and are common pests of animals and sometimes of humans. The bites of many species are very painful. The larger horseflies, e.g.
..... Click the link for more information. and female mosquito, feed on blood; the adults of some species do not feed at all. A few species are found worldwide, often dispersed by humans; more than 16,000 species are found in North America. Many flies are harmful either as carriers of disease or as destroyers of crops. Some parasitize harmful insects. Some, such as the fruit fly, are important in laboratory studies. Flies are classified in the phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
..... Click the link for more information. , class Insecta, order Diptera.
Fly,largest river of the island of New Guinea, c.650 mi (1,050 km) long, rising in the Star Mts. and flowing generally SE through Papua New Guinea to the Gulf of Papua. The Fly is navigable for steamers c.500 mi (800 km) upstream.
a river in the south of the island of New Guinea, in Papua New Guinea. The Fly rises in the mountains of the Central Range, forming for a short distance the border between Papua New Guinea and Indonesia. It empties into the Coral Sea’s Gulf of Papua, creating estuaries. It is 620 km long and drains an area of 64,400 sq km. The mean flow rate is 4,450 cu m per sec. High water occurs from December to April, and low water from June to August. The Fly is navigable for 300 km.
ii. To ride as a passenger in an aircraft.