
Indian Stick Insect
Carausius morosus
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Originating from Tamil Nadu, Southern Indian
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Size: up to 6 inches
Lifespan: 12 Months
Temperature: 17c +
This is a relatively hardy species, and good for beginners. They are quite happy to be kept at room temperature, and as long as it doesn't get excessively cold or hot, you shouldn't need any further heating equipment for them.
Humidity: 50-60%
This level of humidity can be achieved by spraying the enclosure with water slightly every day, doing so will also provide extra water for your stick insects to drink, (they get most of their water from their food, but will drink from surface water on the leaves from time to time).
Any tap water should be boiled and left to stand in an open container overnight to allow the chlorine to evaporate.
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Housing
Exactly how big their enclosure will need to be will depend on how many you intend to keep, but as a general rule of thumb their enclosure should be at least 3 times as high as the length of your largest stick insect (although this is a minimum, and slightly taller would be preferable) and at least twice its length in width and depth. With this species height is more important than floor space.
There are many different types of enclosure that are suitable for your Indian stick insect(s), as long as it's big enough, secure enough (no large holes to allow for escape), allows for natural light to enter and has enough ventilation (we will get to that part shortly). Of the different options available some will look "prettier" than others and some will be more costly or budget friendly, but as long as it meets all the requirements then it can be considered suitable.
Plenty of branches should be provided to allow them to move around, this can be bramble branches for example. Enough space should also be given for them to hang from the branches in order to moult, also please make sure there are no enclosed spaces where they can get stuck.
The ratios mentioned above can also be applied to nymphs (baby stick insects) meaning that they can be kept in a smaller "nursery" enclosure while they are small, this could even be an container found in the home, as long as it is secure and provides enough height and ventilation and the nymphs do not become overcrowded. You can then increase the size and re-house them as they grow.
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Substrate
While using soil or vermiculite etc. can look nice, this makes cleaning the enclosure rather difficult and can make spotting eggs extremely hard. We recommend simply laying a couple sheets of kitchen roll, enough to cover the bottom of the enclosure. This makes both cleaning and spotting eggs easier as well as helping to retain humidity.
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Ventilation
This species requires a good amount of ventilation, cross ventilation is ideal. Cross ventilation is where there is ventilation on more than one side of an enclosure to allow for a direct flow through of air. Depending on what type of enclosure you have you may be able to do this yourself (for example if it is made out of plastic).
If you are using a converted glass fish tank for example and cross ventilation isn't possible, then one full side of the enclosure should be ventilated. (In this example that would be the lid). We would recommend either removing or keeping the lid open and covering the top with some sturdy mesh, this can be cut to fit snugly (remember the holes shouldn't be big enough for your stick insects to escape through, but the mesh should also not be so fine that they get their feet stuck).
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Diet
They can be fed a variety of leaves, some favourites including Bramble, Ivy and Privet, they will also eat Oak, Hawthorn and Rose (leaves). Please make sure no pesticides, weed killer, or any other contaminants have come into contact with any plants that you feed to your stick insects. This can also include being careful about harvesting them from the roadside, as exhaust fumes from vehicles can be absorbed into the plants. Also be careful when buying any plants from garden centres etc. as they may have used pesticides. It is usually best to thoroughly rinse the plants before feeding.
You do not need to provide a water dish for your stick insects.
Any open water sources can cause a high risk of drowning!
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Lifecycle
Indian stick insects usually live for around 12 months. Once they reach maturity they will start to lay roughly 3-4 eggs per day. This species reproduces via parthenogenesis, this means that the females do not need a male to reproduce, so she will lay fertilised eggs even without a male, the nymphs that hatch from these eggs will all be female and will be clones of the mother. Males of the species do exist, but are extremely rare.
Eggs
If you do not wish to be overrun with stick insects, you should either squash, boil or freeze any eggs you do not intend to hatch before disposing of them.
(if you have any pet fish, they enjoy these eggs as a treat if you squash them before dropping them in to the tank).
Any eggs you do wish to hatch should be placed in a well ventilated container with kitchen roll at the bottom. They can be kept at the same temperature and humidity as adults and should take about 2-4 months to hatch, with a typical hatch rate of around 80-90%. The hatch time can be shorter or longer, depending on a number of factors. It is important that the eggs have a day and night cycle as this is crucial for their development! Please change the kitchen roll regularly and watch out for any mould, as this can harm the development off the eggs and be harmful to the nymphs once they hatch.