. Circular. Insect pests; Insect pests. 3.—Muscina stabulnns, (author's illustration) enlarged —Phormia terrcenovm. enlarRed (author's illustration). me stica, that is, per cent of the whole number captured. The remainder, consisting of per cent of the whole, comprised various species, including those mentioned above. LIFE HISTORY OF THE TRUE HOUSE FLY. Musca dotnestica commonly lays its eggs upon horse manure. This substance seems to be its favorite larval food. It will ovi- posit on cow ma- nure, but we have not been able to rear it in this substance. It will also breed in human excr
. Circular. Insect pests; Insect pests. 3.—Muscina stabulnns, (author's illustration) enlarged —Phormia terrcenovm. enlarRed (author's illustration). me stica, that is, per cent of the whole number captured. The remainder, consisting of per cent of the whole, comprised various species, including those mentioned above. LIFE HISTORY OF THE TRUE HOUSE FLY. Musca dotnestica commonly lays its eggs upon horse manure. This substance seems to be its favorite larval food. It will ovi- posit on cow ma- nure, but we have not been able to rear it in this substance. It will also breed in human excrement, and from this habit it becomes very dangerous to the health of human beings, carr3'ing, as it does, the germs of intestinal dis- eases such as typhoid fever and cholera from excreta to food supplies. It will also lay its eggs upon other decaying vegetable and animal material, but of the flies that infest dwelling houses, both in cities and on farms, a vast proportion comes from horse manure. At Salem, Mass., Packard states that he bred a generation in four- teen days in horse manure, The duration of the egg state was twenty-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology. Washington, D. C. : The Bureau
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectp, bookyear1904
