O.k. What type of UVB light are you using? And how is it positioned in/on the enclosure? Is it a tank/aquarium?
How are you measuring the basking temperature? He can get between 2" - 6" of the basking light? The best way to set up the basking area is to set up a platform of some type (a branch, log, platform from the pet store, rock, ledge, etc...) underneath the light at what ever height necessary so it is 105 - 110 F in the actual spot right under the basking lamp.
How big is the enclosure?
Also, from the question you had on Y!answers, are you using a red light for his basking light? That doesn't seem to work for bearded dragons, "psychologically". You want a bright white light for the basking area. You can buy a fancy one from a pet shop. I normally use GE reveal halogen floodlight bulbs I get at home depot. It really doesn't make a difference. The wattage, and how warm they make the basking area does. They seem to enjoy sitting in the bright, warm area. It promotes a natural behavior with them.
Also from that question, he sounds like he may be dehydrated, the "folds", or somewhat wrinkly skin. You should give him a bath at least every other day, just deep enough to come up to his shoulders, baby bath warm, 85 - 88 degrees F. Let him sit in there for 5 - 10 minutes, use something he can't get out of if he tries.
And once past all of the enclosure questions, how old is he? And where/who did you get him from? Do you know what he was being fed?
If he is very young, less than 6 weeks, especially if he was shipped, they can be very picky eaters. I would avoid the mealworms altogether. Even if he does eat them, the risk of impaction is far to great with a baby to make them worth it.
If he is very young, and the breeder/seller was feeding him Phoenix worms, which isn't uncommon for some better breeders, or something else, he may not have seen or eaten much in the way of crickets.
