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218 CHAPTER 10

Source: Centers for Disease Control and Prevention (CDC)

FIGURE 10-5 Life cycle of Sarcoptes scabei, causal agent of scabies

Eutrombicula alfreddugèsi and E. splendens), are when working outside harvesting blackberries
six-legged red larvae of the mite family Trom- and other foods that grow wild. Chiggers attach
biculidae, also known as the harvest mite. In some to the skin of a host and bite the victim, causing a
regions of the country these mites are commonly wheal (elevated area of the skin) accompanied by
called the “redbug” and are usually contracted intense itching and severe dermatitis. These skin