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A Contribution to Our Knowledge of the Bionomics of the Common North American Chigger, Eutrombicula Alfreddugesi (Oudemans) with a Description of a Rapid Collecting Method
Roger W. Williams
Roger W. Williams
School of Public Health of the Faculty of Medicine, Columbia University
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Summary
- 1. A new and rapid method of collecting chiggers in nature is described.
- 2. Rarely do chiggers fed on blood and never is it their chief source of food. An extraoral digestion of epidermal cells is practiced by this parasite.
- 3. Chiggers overwinter in the larval stage deep in the ears and on the eyelids of rabbits, squirrels, and possibly other animals.
- 4. “Red-bugs” are negatively geotropic and possess amazing speed for their size.
- 5. Chiggers are frequently preyed upon by members of the mite family Bdellidae.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 311 | 126 | 4 |
| Full Text Views | 6 | 1 | 1 |
| PDF Downloads | 8 | 1 | 1 |