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Mauna Kea Wekiu Bug — Mauna Kea Volcano Observatory

We have frequently pointed out the importance of recycling agents in the natural world. They are creatures that take waste material of any kind and process it so that our planet is not inundated with excrement and dead bodies. The microbes that process dead material and produce soil, the dung beetles that handle excrement, and the vultures that eat carrion are among those recyclers essential to our environment. From the Hawaiian Volcano Observatory comes a recent discovery of another recycling agent to handle waste most of us would not even know existed. It’s the Mauna Kea wekiu bug (Nysius wekiuicola).

In 1980, scientists on Mauna Kea in Hawaii discovered the wekiu bug that handles natural waste on the summits of mountains where it is too cold for life to exist. At these extreme elevations, the jet stream, typhoons, and other sources of high elevation winds deposit the dead bodies of insects and birds. Instead of those bodies piling up, the Mauna Kea wekiu bug processes them. It’s a beetle whose name comes from the Hawaiian word for “summit.” This bug is specially designed to process mountaintop waste.

The wekiu bug has a straw-shaped mouth that it inserts into a dead insect or bird, allowing the bug to draw out any fluids or nutrients. That leaves the hard parts, which crumble and are carried away by rain, snow, ice, and wind. Even in this very inhospitable area for life, with frequent temperatures well below freezing and no surviving plant life, these bugs process organic material. The Mauna Kea wekiu bug is another example of God’s design to provide balance in nature. He created a natural system designed to allow the constant reprocessing of organic materials so that our planet can support an abundance of all kinds of life.

Reference: The PBS series of Planet Earth for 2022 and Wikipedia.

American burying beetles (Nicrophorus americanus) are among nature’s most efficient and fascinating carcass recyclers. These largest carrion beetles in North America can be up to 1.77 inches (45 mm) long. Unfortunately, they are “critically threatened.”

American burying beetles have a unique appearance, with two bright orange patches on the covers of each of their shiny black wings. Their pronotum, a shield-like area just behind the head covering the thorax, also has an orange patch. In addition, an orange patch between their eyes is rounded on males but smaller and more triangular on females.

Carrion beetles such as American burying beetles play a vital role in returning valuable nutrients to the soil. Dead things would accumulate if tiny insects and microorganisms didn’t do that job. These carcass recyclers fly at night and use chemical receptors on their antennae to detect dead or decaying flesh.

It is unusual in the insect world for both the males and females to participate in raising the young, but American carrion beetles are involved parents. The male will find a carcass about the size of a small bird or chipmunk and attract a female. The two beetles bury the carcass, and the female will lay up to 30 eggs. When the larvae hatch, both parents feed the young from the decaying carcass while keeping them safe underground. After about a week, the larvae go into a pupal stage and eventually emerge as adults that live for about 12 months. When the temperature drops, they bury themselves for the winter and re-emerge in the spring.

We seldom think about the importance of carrion beetles as carcass recyclers, but they play an essential ecological role. Each living species is designed to serve a function in nature, and every loss destabilizes the fragile balance God gave us to enjoy and protect. We can know there is a God by the things He has made (Romans 1:20).

Tag: natural recycling

Mauna Kea Wekiu Bug

Carrion Beetles – Carcass Recyclers