Deroplatys trignodera – Giant dead leaf mantis

General information

DistributionIndonesië, Maleisië, Sumatra
HabitatTropical rainforests
SizeFemales ~7cm Males ~5cm
Life expectancyFemales up to 2 years. Males up to 1 year.
ColorsSeveral brown colors, rarily seen in green
Group keeping possibleNymphs up to L3, or adult amles

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.


Day: 22-28C                       

Night: Room temperature, (under 18C no problem)

Humidity: 60/80%

Food recommendation

L1/L2Big fruitflies (Drosophila hydei)
L3/L4Big fruitflies (D. hydei) and green bottle flies
L5+Green bottle flies, bluebottle flies, small crickets, small redrunners.


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 L7

Amount of molts can sometimes differ 1 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 around 4 weeks after the last molt, males after around 2 weeks after the last molt.

Oothecas & incubation

De oothecas are around 2 to 3cm long. Up to 8 oothecas can be layed, with an interval of 2 to 4 weeks. The first ootheca will be layed after 6 to 8 weeks after the female became an adult.

The hatching of the ootheca should happen after around 7 weeks. On average, aroun 40 nymphs will be born. The nymphs are pretty big for an L1 compared to other species.