Now that makes sense...thanks for the update, Latchie.
I found the following info on www.buggspray.com
[font=arial]Biting Gnat Control
[font=arial]September 19, 2002 - StarTribune Fixit column
[font=arial]Q. - What are the tiny black bugs that almost look like gnats and bite? They really hurt and seem to be out in the early evening and during the day.
[font=arial]A. It's hard to tell for sure, but your description sounds like black flies, said entomologist Jeffrey Hahn of the University of Minnesota's Yard and Garden Clinic.
[font=arial]Black flies, also called gnats, are common and a nuisance in summer, generally in the morning, evening and on cloudy days.
[font=arial]Vanilla extract works well to repel gnats. Apply it around the head, especially on a head band. The extract has to be re-applied every 20 to 30 minutes. [font=arial]The commercial product Buggspray Vanilla is available at many drug and sporting goods stores. [font=arial]Gnat nuisances diminish as fall settles in.