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. Handbook of medical entomology. Insect pests; Insects as carriers of disease; Medical parasitology. 40. Ixodes ricinus; male, ventral aspect, Braun and Lwehe. After work indicates that their long- evity has been considerably under-estimated. Typically, they are permanent feeders, remaining on the host, or hosts, during the greater part of their life. They molt twice only, on leaving the larval and the nymphal stages. The adult female deposits a single, large batch of eggs. Contrasting the habits of the Ixodidas to those of the Argasidse, Nuttall (1911) emphasizes that the Ixodidse are more h

. Handbook of medical entomology. Insect pests; Insects as carriers of disease; Medical parasitology. 40. Ixodes ricinus; male, ventral aspect, Braun and Lwehe. After work indicates that their long- evity has been considerably under-estimated. Typically, they are permanent feeders, remaining on the host, or hosts, during the greater part of their life. They molt twice only, on leaving the larval and the nymphal stages. The adult female deposits a single, large batch of eggs. Contrasting the habits of the Ixodidas to those of the Argasidse, Nuttall (1911) emphasizes that the Ixodidse are more h Stock Photo
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. Handbook of medical entomology. Insect pests; Insects as carriers of disease; Medical parasitology. 40. Ixodes ricinus; male, ventral aspect, Braun and Lwehe. After work indicates that their long- evity has been considerably under-estimated. Typically, they are permanent feeders, remaining on the host, or hosts, during the greater part of their life. They molt twice only, on leaving the larval and the nymphal stages. The adult female deposits a single, large batch of eggs. Contrasting the habits of the Ixodidas to those of the Argasidse, Nuttall (1911) emphasizes that the Ixodidse are more highly specialized parasites. "The majority are parasitic on hosts having no fixed habitat and consequently all stages, as a rule, occur upon the host." As mere parasites of man, apart from their power to transmit disease, the Ixodidae are much less important than the Argasidae. Many are reported as occasionally attacking man and of these the following native spe- cies may be mentioned. Ixodes ricinus, the European castor bean tick (figs. 49, so), is a species which has been often reported from this country but Banks (1908) has shown that, though it does occur, practically all of the records apply to Ixodes scapularis or Ixodes cookei. In Europe, Ixodes ricinus is very oT-iiinrlQTTf- Qnri â 7P^-r7 ^^' ^^o*^^^ ricinus, var. scapularis, female. Capitulum and auUnQanX ana very scutum; ventral aspect of capitulum; coxae; tarsus 4; ^â 1 â,, iâ spiracle; genital and anal grooves. After Nuttall and commonly attacks warburton.. 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 work.. Riley, William A. (William Albert), b. 1876; Johanssen, Oskar Augustus, 1870-. Ithaca, N. Y. , The Comstock Publishing Company

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