I have had flea beetles in potatoes but for some reason no damage was found in my tomatoes. I did a search for Colorado and Ohio. Used Cuil.com to search.
Dozens of species of flea beetles are found in Colorado (Table 1). Although there is some overlap of tastes, each type of flea beetle has a decided preference for certain plants. For example, some flea beetles feed only on potatoes, tomatoes and other members of the nightshade family. Others have a taste for broccoli, cabbage and other cole Crops.
Can't help much but look into these sites for clues. Tom
http://info.ag.uidaho.edu/keys/plates/plate33.htm
http://www.cuil.com/search?q=flea+beetle
http://www.cuil.com/search?q=flea+beetles+ohio