Hierodula majuscula – Giant Australian Rainforest Mantis

General information

SizeFemales up to 10cm Males up to 9cm
Life expectancyFemales up to 2 years Males up to 1.5 year
ColorsGreen, with red on the inside of the raptors.
DifficultyEasy (Perfect beginner mantis)
Group keeping possibleNo, only in L1

Keeping requirements

-Individual keeping: From 20x20x20cm

-Smaller nymphs are best kept in smaller enclosures in order to make sure they can catch their food more easily.

Terrarium setup

-Substrate: soil, sand, kitchen towel, coco peat, spagnum moss or a mixture.

-Climbing surfaces: Branches, live or plastic plants, mesh sides or a combination.

-Ventilation: Top ventilation, best to provide ventilation from the side as well.




Humidity: 40/60%

Food recommendation

L1/L2Small and big fruitflies
L3/L4Big fruitflies and curly wing flies
L5/L6Blue bottle flies, Green bottle flies, small roaches
L7+Blue bottle flies, locusts, redrunners, dubias, other roaches.


In general: Praying mantises have segments on their abdomen(=belly). The amount of segments differs for males and females. This is a reliable method to use for sexing nymphs, the bigger they are the easier it is to see the difference.


Adult stage:

Females will be adult in L9, males in L8

Amount of molts can sometimes differ when they are kept under extreme conditions. Both adult sexes will have wings, but especially the males are capable of flying short distances.

Sexual maturity:

Females are sexually mature 4 weeks after their final molt, whilst males are after 3 weeks.

Oothecas & incubation

The oothecas are around 3-4cm big and have an oval shape. The color is usually brownish. Up to 5 oothecas can be laid, with an interval of around 20 days. The first ootheca will be laid around 5-6 weeks after the last molt.

It takes around 5-8 weeks for the ootheca to hatch. Up to 100 nymphs can hatch per ootheca. The freshly born nymphs are around 5mm in size.