Entomology (Study of Bugs)/mysterious bug bites

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Question
My 9 year old daughter has bug bites on her legs - at the knee and below.  We live in Northern Virginia.  She seems to get them at night in her room.  We have had it inspected for bed bugs.  Nothing.  We have questioned it being a rash, but it is clearly bites.  Any suggestions as to how to figure out the source.  Our pest control company and another one is stumped.  However, it is remarkably frustrating to have her continue to be eaten.  Any thoughts are greatly appreciated.

Answer
Sally,

Bites that occur low on the legs and ankles are often caused by fleas (see http://www.livingwithbugs.com/fleas.html). Also, here's a list of other insects and mites that bite people http://www.livingwithbugs.com/unknown_bug_bites.html plus some things that can mimic bug bites such as allergies. Allergies can cause skin eruptions that are nearly indistinguishable from bug bites so don't dismiss this possibility too quickly. Sorry I can't be more specific.

Jack DeAngelis

Entomology (Study of Bugs)

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Jack DeAngelis

Expertise

I can answer questions in any area of entomology (study of insects, spiders, mites, ticks, and other terrestrial arthropods). Contact me about home and garden insects, insects that bite and sting, and insects that damage homes such as carpenter ants and termites.

Experience

20 years as university extension entomologist, now retired; currently publish a website about home and garden insects.

Publications
see www.livingwithbugs.com/resume.html

Education/Credentials
Ph.D. in Entomology

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