Assassin Mimic Cockroach Nymphs

Assassin Mimic Cockroaches are a fascinating species known for their unusual appearance and behaviour. They are named for their resemblance to assassin bugs, which helps them avoid predators in the wild. Their long legs and alert posture make them very different from most common cockroach species.

They are a hardy species and relatively easy to keep, making them a great choice for anyone interested in unusual invertebrates.

Difficulty

Easy to Moderate

Assassin Mimic Cockroaches are fairly hardy and adaptable as long as they are kept warm and provided with the correct humidity and food.

Temperature

I keep mine between 24–28°C.

They prefer warm conditions and tend to be more active at higher temperatures.

Humidity

Moderate humidity works best.

I keep part of the enclosure slightly moist while leaving other areas drier so they can choose where they are most comfortable.

Enclosure

A well-ventilated plastic tub or glass enclosure works well.

These cockroaches are active and like space to move around, so I recommend giving them a reasonable amount of floor space rather than a tall enclosure.

Make sure the enclosure has good ventilation, as stagnant air can cause problems.

Substrate

A natural substrate helps maintain humidity and provides a more natural environment.

A simple mix works well such as:

Organic soil

Coconut fibre

Leaf litter

Keeping the substrate slightly damp in one area helps maintain humidity.

Hides and Enrichment

Providing hiding spots will help them feel secure.

Good options include:

Cork bark

Pieces of wood

Leaf litter

They will often hide during the day and become more active in the evening.

Diet

Assassin Mimic Cockroaches are omnivorous scavengers and will eat a wide range of foods.

I feed mine a varied diet including:

Fresh vegetables

Fruit

Fish flakes or dried shrimp for protein

Leaf litter

Removing uneaten fresh food after a day or two helps keep the enclosure clean.