Rhinoceros beetles are one of the most popular large beetle species. It’s relatively easy to care for these fascinating and visually appealing insects. Their owners love them because of their eye-catching aesthetic––a single, giant horn. In this guide, we’ll examine everything you need to know about keeping rhinoceros beetles.
1. Rhinoceros Beetles Live Among Decaying Forest Matter
Aspiring owners should know the origins of their rhinoceros beetles. This large species is endemic to every continent across the globe, except Antarctica. They love woodlands, and it’s common to find them in hedgerows or under branches of fallen trees. In the U.S., they live in southern states, like Arizona and Nebraska. They’re also very common in East Asian countries, including China and Japan. Rhinoceros beetles have massive strength relative to their size, being able to lift up to 100 times their own weight. This makes them one of the strongest insect species. These beetles can grow up to six inches, and the males use their powerful horns to fight off rivals. This is a typical part of mating rituals and something for owners to be wary of when housing several rhinoceros beetles together.
2. Tank Size Should Measure >10 Gallons
It’s important to provide the right enclosure for your rhinoceros beetles. Some people think it doesn’t matter how big their terrarium is, but we disagree. After all, these beetles are one of the world’s biggest bugs. A 10- to 20-gallon tank is perfect for them because it gives them room to wander and explore. It’s not ethical to contain a rhinoceros beetle in something smaller than this. A larger space also allows owners to decorate and accessorize it more.
Remember, rhinoceros beetles hail from dense woodland environments, so it’s fun to recreate this in their terrariums. It will provide a more authentic experience for the owner and a better life for the beetle.
3. A Good Substrate Is Crucial
After you buy an enclosure, you must think about the conditions inside it. A good substrate is essential for your beetle’s health and longevity. We recommend coconut fiber or peated soil because it will help maintain the humidity levels inside their enclosure. Some rhinoceros beetle keepers say that it’s not important, but we guarantee that dry air shortens their lifespans. The good news is that you rarely need to change the substrate. Every two to three months should be enough for adult rhinoceros beetles. However, you may need to do it more regularly for beetles in the larval stage.
4. They Need Certain Humidity and Temperature Levels
It’s not tricky to set the temperature levels for rhinoceros beetles. They should be comfortable at room temperature but prefer 75 to 85°F. Remember, they originate from warmer climates like the southern states of the U.S. It’s also important to set the right humidity levels. Seventy to 80 percent is ideal for Rhinoceros beetles. Use a hygrometer and thermometer to check if their conditions are appropriate. This is the easiest way to ensure a long life for your insect pals!
5. Rhinoceros Beetles Are Herbivores
Rhinoceros beetles are pure herbivores. We recommend feeding them formulated beetle jelly because this has all the nutrients they need. These giant insects need several key vitamins and minerals to stay healthy. Calcium is essential for a strong exoskeleton. Meanwhile, they need protein and carbohydrates for energy and growth.
Don’t neglect to give them water! Dehydration can drastically impact a beetle’s capacity to breathe. We recommend giving your Rhinoceros beetles extra tasty treats like sliced apples or bananas. Some owners give them a little bit of syrup for a sugar rush. They also love munching on rotting wood. Rhinoceros beetles are nocturnal creatures, so feed them in the evening. Don’t forget to remove uneaten food to keep their terrarium clean and free of mold.
6. Only Handle Rhinoceros Beetles When Necessary
Rhinoceros beetles have an intimidating appearance, but they are harmless to humans. That’s why they are one of the most popular pet insects. It’s perfectly safe to handle them, but it’s essential to do it in the right way to avoid stressing them. They don’t love when people pick them up, and they may hiss. Yet, you can handle them by gently grasping their bodies with your thumb and pointer finger.
Avoid the legs and horns because this could damage the beetle. It’s also essential to wash your hands before and after handling your rhinoceros beetles. New insect owners often forget this step, but it reduces the risk of transmitting any harmful bacteria to your other pets!
7. Different Rhinoceros Beetles Have Different Needs
There are over 300 different varieties of rhinoceros beetles across the globe, but some are more common than others. They may grow to different sizes, have varying lifespans, and require different enclosures. Popular beetles include:
- The common rhinoceros beetles. These gleaming beetles have an impressive aesthetic with their shimmering black armor. They only live for two to four months after emerging as adults, so they’re a short-term commitment.
- Japanese rhinoceros beetles. Japanese rhinoceros beetles are endemic to East Asia. Known as “Kabutomushi” in Japanese, prize specimens can fetch hundreds of dollars! They live for about 120 days.
- Eastern Hercules beetles. This is one of the two most common native U.S. rhinoceros beetle species. It’s indigenous to the eastern United States and has beautiful tan-gray armor. Their lifespan is about six months in captivity.
- Western Hercules beetles. Another popular U.S. rhinoceros beetle species, this one hails from the western states. Western Hercules Beetles have unique gray-white elytra or armor. They live for three to seven months and grow up to four inches long.
