What Is the Largest Praying Mantis?

Praying mantises are captivating insects known for their distinctive appearance and unique behaviors. They are renowned for their predatory nature, waiting in a “praying” posture to ambush prey. Their elongated bodies and large, grasping forelegs make them effective hunters in various environments. Mantises vary widely in size, with some species reaching impressive lengths.

Meet the Record-Holder: The Largest Praying Mantis

The largest known praying mantis species is Ischnomantis gigas, the Giant African Stick Mantis. Females can reach up to 172 millimeters (6.77 inches) in body length, with males averaging around 157 millimeters. Its exceptionally slender and elongated build allows it to blend seamlessly with stick-like vegetation in its habitat.

Ischnomantis gigas is primarily brown, providing effective camouflage among branches and bushes. Unlike some other large mantis species, females have relatively small wings, rendering them flightless. This mantis is indigenous to sub-Saharan Africa, found in countries like Senegal, Mali, and Cameroon. Its preferred environments are tropical and subtropical areas with dense vegetation like grasslands and forests. As an ambush predator, it preys on insects such as crickets and mealworms, and even small vertebrates like frogs.

Giants Among Us: Other Impressive Mantis Species

Mantis size is typically measured as body length, from head to the end of the abdomen or wings, and expressed in millimeters or inches. While Ischnomantis gigas holds the record for length, several other mantis species are notable for their considerable size. The Chinese Mantis (Tenodera sinensis) can grow up to 11 centimeters (4.3 inches) long. Native to Asia, this species is now widespread in North America, where it is often considered the largest mantis.

The European Mantis (Mantis religiosa) reaches about 10 centimeters (4 inches) long. These mantises are usually green, though some individuals may appear light brown. The West African Mega Mantis (Plistospilota guineensis) stands out not for its length, which is comparable to other large species at up to 11 centimeters, but for its substantial mass. It is considered the heaviest mantis species, with females weighing approximately 13.08 grams (0.029 pounds), making them bulkier than Ischnomantis gigas. The Giant Asian Mantis (Hierodula membranacea) measures between 7 and 9 centimeters (2.8 to 3.5 inches).