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See also:FLY (formed on the See also:root of the supposed See also:original See also:Tent. fleugan, to fly) , a designation applied to the winged or perfect See also:state of many See also:insects belonging to various orders, as in butterfly (see See also:LEPIDOPTERA), See also:dragon-See also:fly (q.v.), may-fly (q.v.), caddis-fly (q.v.), &c.; also specially employed by entomologists to mean any See also:species of the two-winged flies, or See also:DIPTERA (q.v.) . In See also:ordinary parlance fly is often used in the sense of the See also:common See also:house-fly (Musca domestica); and by See also:English colonists and sportsmen in See also:South See also:Africa in that of a species of tsetse-fly (Glossina), or a See also:tract of See also:country (" See also:belt ") in which these insects abound (see TSETSE-FLY) . Apart from the house-fly proper (Musca domestica), which in See also:England is the usual one, several species of flies are commonly found in houses; e.g. the Stomoxys calcitrans, or See also:stable-fly; Pollenia rudis, or cluster-fly; Muscina slabulans, another stable-fly; Calliphora erythrocephala, See also:blue-See also:bottle fly, See also:blow-fly or See also:meat-fly, with smaller sorts of blue-bottle, Phormia terraenovae and Lucilia See also:caesar; Homalomyia canicularis and brevis, the small house-fly; Scenopinus fenestralis, the See also:black window-fly, &c . But Musca domestica is far the most numerous, and in many places, especially in hot See also:weather and in hot climates, is a See also:regular pest . Mr L . O . See also:Howard (Circular 71 of the See also:Bureau of See also:Entomology U.S . Dept. of See also:Agriculture, See also:Washington, 1906) says that in 1900 he made a collection of the flies in dining-rooms in different parts of the See also:United States, and out of a See also:total of 23,087 flies, 22,808 were the common house-fly . Its See also:geographical See also:distribution is of the widest, and its rapidity of breeding, in manure and See also:door-yard filth, so See also:great that, as a See also:carrier of germs of disease, especially See also:cholera and typhoid, the house-fly is now recognized as a potent source of danger; and various sanitary regulations have been made, or precautions suggested, for getting rid of it . These are discussed by Mr Howard in the See also:paper referred to, but in brief they all amount to See also:measures of See also:general See also:hygiene, and the See also:isolation, prompt removal, or proper sterilization of the See also:animal or human excrement in which these flies breed . |
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