. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. 250 ORDER DIPTERA aquatic and air-breathing, with tlie trachea opening at the end of the abdomen. The pupae are also aquatic but keep near the surface and spiracles open near the head. The pupa case splits on the dorsal side and the mosquito rests on the. Fig. 194.—Anopheles punctipennis: female. (From Howard, Div. Eiit., U. S. Dept. Ag.) surface of the water until its wings are dried enough for flight. One species has been observed whose eggs may remain over winter in mud,
. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. 250 ORDER DIPTERA aquatic and air-breathing, with tlie trachea opening at the end of the abdomen. The pupae are also aquatic but keep near the surface and spiracles open near the head. The pupa case splits on the dorsal side and the mosquito rests on the. Fig. 194.—Anopheles punctipennis: female. (From Howard, Div. Eiit., U. S. Dept. Ag.) surface of the water until its wings are dried enough for flight. One species has been observed whose eggs may remain over winter in mud, and hatching and development depends upon the presence of water. Mosquitoes breed in minute quanti-. 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
Size: 1480px × 1689px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectb, booksubjectinsects
