. Animal studies. 140 ANIMAL STUDIES Many of this great group of the flies spend their early life in the water or other medium acting as scavengers; but, on \,he other hand, numbers attack domestic and other animals, and throughout their entire lives are an intolerable plague. 131. The beetles (Coleoptera).—Owing to the ease of pres- ervation and their bright colors, the beetles have probably been more widely collected than other insects. Fully ten. Fig. 82.—Long-homed borer {Ergates). Larva (left-hand figure), pupa, and adult insect. thousand distinct species are known in Xorth America alone.
. Animal studies. 140 ANIMAL STUDIES Many of this great group of the flies spend their early life in the water or other medium acting as scavengers; but, on \,he other hand, numbers attack domestic and other animals, and throughout their entire lives are an intolerable plague. 131. The beetles (Coleoptera).—Owing to the ease of pres- ervation and their bright colors, the beetles have probably been more widely collected than other insects. Fully ten. Fig. 82.—Long-homed borer {Ergates). Larva (left-hand figure), pupa, and adult insect. thousand distinct species are known in Xorth America alone. They are all readily recognized by the two firm, horny sheaths enclosing the two membranous wings, which alone are organs of flight. The mouth is provided with jaws, which are used in gnawing. Some prey on noxious insects or upon decaying vegetable or animal matter, and are often highly beneficial; but others attack our trees and domestic animals, and work incalculable 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 Jordan, David Starr, 1851-1931; Kellogg, Vernon L. [from old catalog].
Size: 1568px × 1594px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorjordanda, bookcentury1900, bookdecade1900, bookyear1903
