horsefly

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Related to Horseflies: Black flies, Deer flies

horsefly,

common name for the large hairy fliesfly,
name commonly used for any of a variety of winged insects, but properly restricted to members of the order Diptera, the true flies, which includes the housefly, gnat, midge, mosquito, and tsetse fly.
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 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., the mourning horsefly and the 1-in. (2.5-cm) black horsefly, belong to the genus Tabanus; the smaller and more common banded horseflies, with black, brown, or yellow bodies and brilliantly colored eyes, are members of the genus Chrysops. The deerflies, which carry the diseases anthraxanthrax
, acute infectious disease of animals that can be secondarily transmitted to humans. It is caused by a bacterium (Bacillus anthracis) that primarily affects sheep, horses, hogs, cattle, and goats and is almost always fatal in animals.
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 and tularemiatularemia
or rabbit fever,
acute, infectious disease caused by Francisella tularensis (Pasteurella tularensis). The greatest incidence is among people who handle infected wild rabbits.
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, and in Africa, a filarial worm infestation, belong to this group. Horseflies are most abundant in hot weather. The eggs are laid on plants or stones close to water. The somewhat flattened 1-2-in. (1.3-cm) larvae have fleshy protuberances on each body segment, aiding in locomotion; they live in water or in moist earth and feed on snails and on other insect larvae. Horseflies 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.
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, class Insecta, order Diptera, family Tabanidae. See insectinsect,
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.
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

horsefly

any large stout-bodied dipterous fly of the family Tabanidae, the females of which suck the blood of mammals, esp horses, cattle, and man
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
The traps are recommended for use around swimming pools too, where horseflies are attracted to the shine of the water and there is a lot of bare flesh to feast on.
The fairer-skinned one attracted double the number of horseflies when compared with the striped one, and the darker models had 5.1 times more flies than the fairer-skinned mannequins.
But now a team of researchers from Hungary and Sweden say they may have the answer: The stripes repel blood-sucking horseflies. The alternating black and white bars, the scientists say, reflect light in a way that drives horseflies away; by contrast the "flat" light waves created by stripe-free horses and donkeys seem to attract the insects.
Horseflies are equipped with scissor-like mandibles that tear and cut.
On the third round, the horses bolted because of the green horseflies. Halfway down the field they were on a full gallop, throwing rooster tails of corn, weeds and dirt.
It's charming to think of him, in his rolled up shirtsleeves at the side of the road on a sweltering Ontario summer's day, imperiously swatting away horseflies and mentally composing press releases that all begin with the phrase "this is not a metaphor." Who takes buses these days anyway?
"I don't know if you are being bitten by mosquitoes or by horseflies but you are using every single issue to draw apocalyptic scenarios," declared in turn MP Pavel Shopov from the Ataka party which supports the Borisov government.
Matt Garza - Garza almost always pitches well against the Red Sox and Matsuzaka will drive you crazier than a cloud of horseflies at a cookout.
Black flies, brown flies, horseflies, deer flies; all emerge at this time to wreak havoc on every farmer's animals.
Written by Tom Turpin (Professor of Entomology in Purdue's College of Agriculture), Flies in the Face of Fashion, Mites Make Right, and Other Bugdacious Tales is jam-packed with fun facts about insects--from the bug that ancient Egyptians used to worship as a god to how horseflies can fly without a head to the inordinate contribution that humble fruit flies have made to science.
The question we select and the answer we provide may depend in part on whether we are gadflies or horseflies. Or, alternatively, whether we are becoming barflies.