How long do mealworms live?

How long do mealworms live?

How long do mealworms live?

Mealworms are one of the most popular food sources for a variety of animals, from lizards and frogs to birds and chickens. Mealworms are often described as living up to one year, but the truth is that their life span can vary greatly depending on their environment. Generally, mealworms can live anywhere from 3 to 12 months, but some can live as long as two years.

It is important to remember that a mealworm’s lifespan can be greatly shortened if the environment is too hot, too cold, or too dry. For example, mealworms kept in temperatures above 85 degrees Fahrenheit will not survive as long as mealworms kept in more moderate temperatures. Likewise, if they are kept too dry, their lifespan can be significantly shortened. When kept in ideal conditions, which includes a temperature of around 70-80 degrees Fahrenheit, steady moisture, and the right food to let mealworms eat, mealworms can live up to two years.

How Long Do Mealworms Live: A Fascinating Insight into the Lifecycle of Your Favorite Feeder Insect

What do mealworms turn into? Mealworms are undoubtedly one of the most popular feeder insects used in reptile and bird feeding. But have you ever wondered how long mealworms live? Well, wonder no more, because we’ve got you covered!

Mealworms live through a complete metamorphosis process – from egg to larva to pupa to adult. The average lifespan of a mealworm is determined by the environmental conditions, food source, and their stage of development.

How long do mealworms live: During the egg stage

During the egg stage, mealworm eggs incubate for about 2-4 weeks before they hatch into tiny mealworms. Once hatched, these young mealworms (larvae) feed on a diet of grains or vegetables and molasses for about 2-4 months. During this time, they undergo several molts or shedding of skin, growing in size with each shedding.

How long do mealworms live: Larval stage

After the larval stage, mealworms enter the pupal stage, where they stay for approximately 6-18 days. During this stage, mealworms remain inactive, converting their larval bodies into adult bodies. After the pupal stage, mealworms finally emerge as adults.


The lifespan of an adult mealworm is relatively short, lasting only 2-3 months. However, it’s worth noting that mealworms kept in optimal conditions with proper care and nutrition can live up to six months under certain conditions.

In conclusion

mealworms live an average of 4-8 months, depending on their stage of development and the environmental conditions they are kept in. So next time you’re feeding your pets, remember that the mealworms you’re providing have a fascinating lifecycle!

Where do mealworms live

Mealworms, also known as Tenebrio molitor, live in a variety of environments, from dry and sandy areas to damp and humid places. They are often found under logs, leaf litter, and stones in gardens, meadows, and forests. In urban areas, they are typically found beneath stones and wood, in compost piles, and near pet food storage areas.

They can also be found under the bark of trees and in the cracks of buildings and other structures. Because these worms thrive in moist environments, they are often found in stored grains, fungus, bird nests, and other damp areas. In fact, they even have the ability to survive in stored food and grain products. Mealworms are proficient climbers, so they are also commonly found on walls, window sills, and even in light fixtures. Mealworms are nocturnal creatures, so they are most active at night and less active during the day.

How long can mealworms live in the fridge

Mealworms can live in the fridge for a long time, with some reports of mealworms living in refrigerators for up to two years. Mealworms in the fridge will likely require some type of food to keep them alive, such as oatmeal or bran flakes, as well as a source of moisture, such as a damp paper towel. It is important to keep the relative humidity inside the refrigerator in the range of 30-50%, to prevent mealworms from drying out and dying.

Additionally, mealworms need to be stored at a temperature of at least 35°F (1.7°C) to prevent them from entering a state of dormancy, in which they will not grow or reproduce. If all these conditions are met, mealworms should be able to thrive in a refrigerator for an extended period of time.


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Franck Wang
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