Answer
Apr 25, 2021 - 05:57 AM
Our regular mealworms and giant mealworms only differ in size. Our regular mealworms are available in sizes from 1/4" (mini) to 1" (large) and will undergo pupation to become a grain beetle.
You have hit the nail on the head in stating that they are both Tenebrio molitor.
Our Giant mealworms have been forced to remain a larva instead of pupating. The energy that they harness as larvae for turning into a pupa is instead channeled into making them grow 50% larger in width and length to 1.25 to 1.5" long, though we are selling so many at this time they are nearer 1.2"
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