I just ordered 500 small mealies from ebay as they're not far away from my town, and I figure they'll arrive safer? I do live in a warm climate, but I still feel like I'm a bit too late in the season to raise enough mealies to feed my chicks any time soon (might take a few out to feed 'em for fun, but that'll reduce my production, eh? LOL) Oh well...
The small ones will take longer to get to the beetle stage and begin laying eggs. I'll tell you what, the chickens know the whipped topping bowl I use to bring the meal worms out for them on sight: I get mobbed before I make it half way to the coop. They will love you for raising these!
BTW-the ones I purchased from GrubCo arrived in perfect order without even one dead worm. I was very pleased with the purchase. They only have small and medium ones available right now. I also have ordered from Armstrong's Cricket farm (got both crickets and meal worms) and got good service from them as well.