Indian Stick Insects (Carausius morosus) PSG 1 - Nymphs / Juveniles / Adults
Not currently breeding- Care info only
Looking for the quintessential "starter" species that combines ease of care with fascinating biological traits? The Indian Stick Insect (Carausius morosus) is a world-renowned laboratory and hobby staple, prized for its slender, twig-like silhouette and remarkably docile nature.
Originally from the high-altitude forests of Southern India, these phasmids have become the most successful pet insect in history due to their hardy constitution and unique reproductive strategies.
Explore the sections below for our biology-led guide on their Indian montane origins, their incredible "parthenogenetic" reproduction, and why these masters of disguise thrive in our high-clarity vertical habitats.
- Southern Indian Montane Origins: Native to the humid, high-altitude forests of the Tamil Nadu region in Southern India. Biologically, they are adapted to a cool-temperate tropical climate, which is why they thrive so effortlessly in UK homes without the need for supplemental heating. This highland heritage makes them one of the most resilient and forgiving species for new keepers.
- Anatomy and Appearance: The Indian Stick Insect is a master of mimicry, possessing an elongated, wingless body that perfectly replicates the texture and form of a small twig. Adult females typically reach a length of 8–10cm and are characterised by their smooth, matt exoskeleton which ranges in colour from a pale lime-green to a deep, bark-brown. A distinctive biological marker of this species is the bright red patches located on the inner base of their front legs; these are often hidden when the insect is at rest but serve as a flash of "startle colouration" to confuse predators if the insect is forced to move. Their slender antennae and delicate, spindly legs further enhance their camouflage, allowing them to remain virtually invisible amongst the foliage of the Indian sub-continent.
- Mastery of Catalepsy: To avoid detection by birds, Indian Stick Insects have mastered "catalepsy," or "playing dead." When threatened, they fold their legs tightly against their body and enter a rigid, trance-like state, appearing exactly like a fallen twig. This survival mechanism is a fascinating behaviour to observe, especially in younger nymphs.
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Low-Maintenance Feeding: One of the key reasons for their popularity is their unfussy diet. They will happily thrive on Bramble, Ivy, Privet, or Hawthorn, which remain green and accessible throughout the UK winter. Providing a fresh supply of water-misted leaves allows them to hydrate naturally while maintaining ambient humidity. This is also one of the very few species of stick insect that can solely live on ivy without being affected by toxins.
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Gentle Temperament: These are among the most passive insects available. They do not possess spines or defensive secretions, making them the safest choice for educational environments or younger enthusiasts who are learning how to handle invertebrates with care.
- The "Parthenogenetic" Powerhouse: One of the most remarkable traits of C. morosus is that males are almost non-existent in the hobby. Instead, females reproduce via parthenogenesis—the ability to produce fertile eggs without mating. This means a single female can establish an entire colony, providing an incredible, continuous look at the life cycle of a phasmid.
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