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Ramulus nematodes Blue

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Description

Ramulus nematodes "Blue"

Ramulus nematodes "Blue" is one of the most phenomenal and specialized representatives of the stick insect order. The offered line originates from an isolated population from the Khao Lak region in Thailand (designated in the breeding world as PSG 55). This species represents a textbook example of extreme sexual dimorphism and is a true rarity in the collections of advanced keepers. Maintaining the purity of this genetic line is crucial for preserving the incredible coloration of the males.

Feature	Description
Scientific Name	Ramulus nematodes (Haan, 1842)
Common Name	None
Origin	Thailand (Khao Lak)
Size (without legs)	Females up to 170 mm, males up to 100 mm
Lifespan (as imago)	Females 12 to 14 months, males 10 to 12 months
Temperature	21 to 26°C
Humidity	60 to 70%
Difficulty Level	Intermediate to advanced

Appearance and sexual dimorphism

The differences between the sexes are drastic in this species. The adult female is a massive insect in camouflage colors. These are usually olive greens and sandy browns. It reaches up to 17 cm in body length. With its legs extended, its total span can exceed 25 cm. A characteristic feature of the female is large ear-like projections on the head. They serve the function of camouflage perfectly. The adult male is a true entomological phenomenon. He is much smaller and extremely slender. After the final molt his body takes on a stunning metallic blue or deep turquoise color. This contrasts wonderfully with the dark brown-black legs.

Breeding conditions and terrarium

Success in caring for this species depends on rigorous ventilation and appropriate enclosure height. These stick insects absolutely require a vertically oriented terrarium. Minimum dimensions for a group of 3 to 4 pairs are a 40x40 cm base and 60 cm in height. Mesh aviaries (aerariums) or terrariums with a completely mesh ceiling are the optimal solution. The mesh is essential for a secure grip during molting. Stagnant air combined with high humidity is mortally dangerous for them. Humidity should be maintained at 60 to 70% by misting the leaves and substrate. Spraying the insects themselves should be avoided.

Feeding

This species adapts perfectly to the food available in our climate. The absolute basis of the diet is blackberry leaves which the insects eagerly eat at every stage of development. Additionally you can offer leaves of raspberry, pedunculate oak, beech and salal. It is extremely important to obtain food exclusively from clean forest areas. Plants bought in florist shops or garden centers contain systemic insecticides hidden in the sap. They lead to the immediate death of the entire colony. Mechanical washing of such leaves does not remove the poison.

Behavior and safety

These animals are nocturnal. During the day they extend their front legs along the body axis and remain completely motionless. In a threatening situation the insect can let go of the branch and fall into a state of catalepsy. This perfectly simulates a dead twig. It also possesses the ability of autotomy. This is the deliberate shedding of limbs to escape a predator or in case of getting stuck during a molt. Regeneration of a lost limb is only partially possible in young nymphs during subsequent molts. An adult insect will remain permanently crippled. This is a species intended for observation only. Handling this species is categorically discouraged.

Reproduction and incubation

This specific genetic line does not possess the ability for parthenogenesis. Sexual reproduction and the constant presence of males are absolutely required to obtain fertilized eggs. Females scatter the eggs to the bottom of the terrarium with a sudden movement of the abdomen. The eggs resemble flat seeds and require separate incubation in an appropriately prepared container. They should be placed on dust-free vermiculite which is only slightly moist. Embryonic development is a slow process and takes 4 to 5 months at a room temperature of 18 to 25°C. Freshly hatched nymphs are very delicate. Immediately after hatching they must pump their bodies with hemolymph. Therefore they must be provided with absolute peace and kept in separate containers away from heavy adult insects.

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Ramulus nematodes Blue

Description