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The Giant Shield Mantis, as the name suggests, is one of the largest mantis species in the world, reaching lengths of up to 5 inches. They are robust and hardy insects that are easy to care for and are ideal for novices or anyone who wants an alternative to the more commonly found species. The Giant Shield is certainly one of the most beautiful, and they make excellent pets to observe.
If you want to bring one of these giant insects home, keep reading for more information and helpful tips on caring for the Giant Shield Mantis.
Quick Facts About the Giant Shield Mantis
Species Name: | Rhombodera extensicollis |
Family: | Mantids |
Care Level: | Easy |
Temperature: | 70°–85° Fahrenheit |
Temperament: | Friendly, feisty, occasionally aggressive |
Color Form: | Light and dark green |
Lifespan: | 6– 12 months (males), up to 18 months (females) |
Size: | 3–4 inches |
Diet: | Insects |
Minimum Tank Size: | 10″ L x 10″ W x 15″ H |
Tank Set-Up: | Well-ventilated, live plants, substrate |
Giant Shield Mantis Overview
The Giant Shield Mantis is native to southeast Asia and commonly found in China, Borneo, and Thailand. They are one of the most popular mantis pets because they are easy to care for and don’t have many complicated housing requirements. They are also not particularly picky about food and will hunt down anything that moves with precision and speed.
Generally, females live longer than males and can live for up to 18 months, whereas males tend to live for only around a year at the most. Males are known to be more feisty and aggressive than females and are not as easy to handle or hold as females are.

How Much Do Giant Shield Mantises Cost?
Giant Shield Mantises are easy to find all over the United States and breed in captivity. If you’re considering bringing one of these giant insects home, you can expect to pay as little as $30 or up to $60 in some cases. You should budget another $50–$100 for additional expenses, like the tank setup and food.
Typical Behavior & Temperament
One of the joys of owning a Giant Mantis is watching them hunt their prey. Sometimes, they sit and wait, entirely still, and pounce when their prey comes close, but they often hunt their prey down. They ferociously attack any insect their size or smaller but are generally docile and friendly with humans. Most Giant Mantids are happy to be held, but males can sometimes be aggressive. When they feel threatened, you’ll know it, as they produce a hissing sound produced by air pumped out from their abdomen.
Mantids are primarily diurnal, and they are active during the day since their hunting relies heavily on their eyesight.

Appearance & Varieties
Giant Shield Mantises are primarily green but can occasionally be found in yellow and brown colorations. Many experts speculate that this color change is based on the environment that they are raised in, but the exact cause is unknown. They are best known and most recognizable from their large thorax, which resembles a shield or leaf and provides expert camouflage for hunting.
They occasionally have a blue tinge to their coloration, with a pair of tan “eyespots” that further enhance their camouflage. These are also used as scare tactics for would-be predators, making the mantis appear bigger than it is.
How to Take Care of a Giant Shield Mantis
Housing
The Giant Shield Mantis needs a tank or vivarium that is taller than it is wide, preferably glass, because this allows heat to escape on hot days. A good rule of thumb is to have an enclosure that is roughly three times the height of the mantis and twice as wide as the mantis’s length. Adequate ventilation is essential, and a tightly fitted mesh top is ideal. This will give your mantis something to hang from during molting, too.
A vivarium with live plants is great for mantises because plants can break down the mantis’s waste, and peat moss as a substrate will help maintain humidity. Be careful of mold, as it can be lethal to mantises, so be sure not to spray too much water inside the tank.
Temperature and humidity
The native habitat of Southeast Asia of the Giant Shield Mantis is relatively warm and humid, and you should replicate this in their captive habitat. They do well in temperatures between 70° and 80° Fahrenheit, and the humidity should be around 80%. Misting should be done once every day or two to maintain humidity and allow your mantis to stay hydrated, as they drink from condensation on leaves rather than from bowls. Be careful of misting the tank too much since it can create mold.
Accessories
Accessories and decorations are personal choices, but your mantis will love to have various branches and twigs to climb on. Artificial or live plants are suitable, and natural rock and wood ornaments will look great and provide plenty of climbing space.

Do Giant Shield Mantises Get Along With Other Pets?
Because these mantises are such ferocious predators, they should not be housed together. Eventually, only one mantis will be left because they are not opposed to cannibalism. However, young nymphs are not as aggressive or territorial and can usually be housed together until maturity.
While they should be kept safely away from other pets in your home, they are not disturbed by them being nearby.
What to Feed Your Giant Shield Mantis
The Giant Shield Mantis is carnivorous and should be fed a steady diet of live insects. They generally have enormous appetites and are not picky about what they eat. Nymphs need two or three fruit flies every day, juveniles need just one cricket or large fly, and adults will do fine on one or two crickets every 2–3 days.
The best way to judge feeding is by looking at your mantises’ abdomen; a swollen abdomen means they can probably skip a meal. Be careful not to overfeed them, as this can cause serious health issues and may even shorten their lifespan.

Keeping Your Giant Shield Mantis Healthy
The most crucial factor in keeping your mantis healthy is a balanced diet. Crickets are a great staple food, but they must be clean and healthy specimens, and the health of your crickets will affect the health of your mantis, so you’ll need to treat them as if they are pets, too. Remove dead or sick crickets, and do not feed them to your mantis.
As long as your mantis has the proper humidity and temperature levels in their enclosure and are fed on a healthy, balanced, and varied diet, they are hardy and robust animals that rarely get sick.
Breeding
The Giant Asian Mantis is easy to breed in captivity, and many home enthusiasts have done it successfully. It’s important to note that females are ferocious and aggressive during the breeding season, and you should give her a large meal to keep her occupied when introducing the male. Female mantises are often cannibalistic after mating, and if you see her acting aggressively toward the male, remove him immediately before he gets eaten!
After mating, the female typically produces five to eight ootheca, or egg cases, from which around 200 nymphs or babies can hatch, usually after about 4 weeks. These small nymphs develop quickly and begin to eat after just a few hours.

Are Giant Shield Mantises Suitable for You?
Giant Shield Mantises are fascinating animals and a joy to observe. They are expert hunters and hunt their prey with incredible stealth and precision, which is one of the biggest reasons enthusiasts love them so much. They are also easy to care for and are not picky eaters, making them great for beginners. They also breed readily in captivity, which can be an amazing process to watch. Their short lifespan and ease of care make them great animals for children.
If you want to own a truly unique pet that doesn’t need any special habitat requirements, the Giant Shield Mantis is ideal.
Related Reads:
- 10 Interesting Insects That Make Great Pets (With Pictures)
- Unusual Pets that are Legal to Own in the US
Featured Image Credit: Lauren Suryanata, Shutterstock