. Animal biology. Zoology; Biology. B. Fig. 210.—Mites. A, an itch mite, Sarcoptes scabiei DeGeer. Male from above. Greatly enlarged. B, Texas cattle iever tic]i., Margaropus annulatits (Say). Male. X 16. C, chigger, Trombicula irritans (Riley). Larva. X 75. D, adult of chigger. Greatly magnified. {A, C, and D from Ewing. ''Manual of External Parasites," by permission of the publisher: Charles C. Thomas; C after Oudemans: B from, Salmon and Stiles, " Cattle Ticks of the United States," Bur. An. Indus., U. S. Dept. Agr.) insects which they seize with the pincers of their palpi an
. Animal biology. Zoology; Biology. B. Fig. 210.—Mites. A, an itch mite, Sarcoptes scabiei DeGeer. Male from above. Greatly enlarged. B, Texas cattle iever tic]i., Margaropus annulatits (Say). Male. X 16. C, chigger, Trombicula irritans (Riley). Larva. X 75. D, adult of chigger. Greatly magnified. {A, C, and D from Ewing. ''Manual of External Parasites," by permission of the publisher: Charles C. Thomas; C after Oudemans: B from, Salmon and Stiles, " Cattle Ticks of the United States," Bur. An. Indus., U. S. Dept. Agr.) insects which they seize with the pincers of their palpi and sting to death. The sting also serves as a weapon of defense. It is, however, impossible for the scorpion to sting itself to death, as it has often been said to do. The sting rarely, if ever, proves fatal to man. 331. Mites.—Another group of arachnids contains the mites (Fig. 210), which in turn include the ticks. These are very small arachnids. 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 Wolcott, Robert Henry, 1868-1934; University of Nebraska (Lincoln campus). Dept. of Zoology. New York ; London : McGraw-Hill Book Company, Inc.
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