Never had fleas, so I’d choose the mosquitoes anyday (fear of the unknown and all). I don’t know what part of Brazil Tom, #5, was in, but where I was in the Northeast it was impossible to sleep without a net or fan. Most of used a fan pointed at our heads to keep the mosquitoes away—they don’t like flying in wind.
Geoff J: I learned all I need to know about chiggers when I was visiting my in-laws in Missouri. One chigger is all it takes!