. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. FAMILY MUSCID^ 279 gots from four to six days to grow, and pupation six to eiglit days, so there may be many generations in a summer. Pro- tection may be readily gained by community effort. Their flight is sufficiently' restricted to make individual effort on a farm well worth while, even if some nearby farms are neg- Fig. 224.—The common house fly: a, pupa removed from puparium; b, hind end of body of larva in second stage; c, anal spiracles of larva in fiist stage
. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. FAMILY MUSCID^ 279 gots from four to six days to grow, and pupation six to eiglit days, so there may be many generations in a summer. Pro- tection may be readily gained by community effort. Their flight is sufficiently' restricted to make individual effort on a farm well worth while, even if some nearby farms are neg- Fig. 224.—The common house fly: a, pupa removed from puparium; b, hind end of body of larva in second stage; c, anal spiracles of larva in fiist stage. All enlarged. (From Howard, Div. Ent., U. S. Dept. Ag.) Horn Fly {Hcematobio serrata ).—In the intro- duction and rapid spread of this insect we have an excellent illustration of the importance of gi\ing attention to the injurious insects of other countries and of taking all possible means to prevent their importation. The species in hand has been a common insect in Europe, and with other members of the same genus recognized as a troublesome insect, though apparently no careful study of its life history has been made 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 Osborn, Herbert, 1856-1954. Philadelphia ; New York : Lea & Febiger
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectb, booksubjectinsects
