Morio worms are the tropical version of a mealworm, only much larger and are sometimes referred to as ‘super giant mealworms.’ They are the larvae of the Zophobas Morio beetle and are a species of darkling beetle.
The insect’s larvae resemble very large mealworms, about 50 to 60 mm (1.7–2.25 in) long when full size, but unlike mealworms, the ends of their bodies are very dark, almost resembling a black color. Nutritionally the values are similar to those of mealworms.
Upon receiving your order empty them into a well-ventilated container and keep at room temperature, feeding bran and small pieces of chopped carrot.
Morio worms are an insect that are effected by the cold weather so if they appear to be dead on arrival put it near a warm source for around an hour to see them start moving around again.