What kind of Chameleon is she? How long are you misting for and how often? Sometimes it takes a long enough misting session before they will start drinking. Sometimes when I mist my female Jackson she will not start drinking until about at the 4 minute mark of the misting session.
I am sure that you can get them at a pet store there in Colorado and you can also get them online from one of the many sponsors on this site. What is good about Dubias besides their good nutritional value(given you gutloaded them good) is their ease in breeding. You do not even need a separate bin to separate out the babies. They all can be kept in the same bin. Heck they even tend to eat their own poo minimizing the cleanup.