. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. Fig. 156. Spotted fever tick, Dermacentor venustus, male (J) and female (9 )• X Fio. 157. Development of spotted fever tick, Dermacentor venustus; A, eggs; B, larva; C, nymph. X 30. in the country where the ticks occur, especially squirrels of various kinds. Usually the larvse, and the nymphs also, attach themselves about the head and ears of their host. After a few days the larvae drop, transform into nymphs (Fig. 157C) and. Please note that these images are extracted from scanned page images that

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. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. Fig. 156. Spotted fever tick, Dermacentor venustus, male (J) and female (9 )• X Fio. 157. Development of spotted fever tick, Dermacentor venustus; A, eggs; B, larva; C, nymph. X 30. in the country where the ticks occur, especially squirrels of various kinds. Usually the larvse, and the nymphs also, attach themselves about the head and ears of their host. After a few days the larvae drop, transform into nymphs (Fig. 157C) and. 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 Chandler, Asa Crawford, 1891-. New York, J. Wiley

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