What are these bugs that seem to love to bite me?. I never see them and the bites are mostly on my arms and legs. Sometimes the bite ends up as a small red dot, other times a big red welt appears. Usually a day or so after I get bitten the area becomes very itchy. The bite takes about a week or 10 days to completely disappear. I used to think I was getting bitten at the beach, but this proved wrong as I was bitten on days I didn't go. It can't be mosquitoes. I sure I would see them. I tried using Deet spray I bought at one of the pharmacies, but to no avail. Any suggestions on how to stop this annoyance?