They can both have mealworms BUT...be aware that the all important calcium to phosphorus ratio of mealworms and waxworms is REALLY bad. It is why herp and flyer people coat them with calcium before feeding - to try to counteract that a little. I even limit them to my flyer - his food has additional protein in it via whey isolate so they are really just for the pure joy of eating something that wiggles on the way down and occasionally using them to slap me in the face when he faceplants me with one hanging out of his mouth (apparently the sight of me dry heaving in disgust is just the BEST). Lots of phosphorus and little calcium is the recipe for MBD. So they should be used only as occasional treats. If you are feeding them HHBs they are getting the correct amount of protein already so they aren't needed to boost that.
www.grubco.com has them.