Haan described this species as Phasma (Bacteria) nematodes in 1842
2005 - first successful culture of this species by Harald Lamprecht (Switzerland)
2008 - distributed as Ramulus nematodes "blue" to other breeders
thanks a lot to the following breeders for their contribution:  Harald Lamprecht
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Origin
Khao Lak (Thailand) – beside a street towards Pucket
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Females
typical, wingless stick insects. They can grow quite big (14 – 16,5 cm), thus they are bigger than the R. nematodes variation with red males
on their head are two big, brown lobe-like expansions
short feelers, only 1 – 1,5 cm long
colour is ranges from brown to green
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Males
typical, wingless stick insects. They are very thin, especially the legs, and grow to about 10 cm. Thus they are also bigger than the R. nematodeswith red males
beautifully coloured when adult. The body is blue, while the legs are brown
short feelers – about 3 cm long
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Eggs
very flat eggs, brown in colour - about 6 x 2 mm
incubate them at room temperatures (18°C to 25°C) on a damp substrate - e.g. sand. Incubation time is around 4 months
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Food Plants
nymphs as well as adults will feed easily on bramble. In summer you can offer them also other Rosaceae (raspberry, rose) - and they like oak
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Breeding Notes
an easy to breed species – still they need some basic care
phasmid breeders should be careful enough, as not to mix up R. nematodes cultures which originate from different locations !
keep the nymphs in smaller cages and transfer them to bigger cages – appropriate to their size – as the grow bigger
this is a fragile species, therefore one should take care that there are not too many specimens in the same cage
I do never spray nither nymphs nor adults, but I keep them in a fairly humid cage with wet paper towel on the bottom. That is enough to keep the humidity high enough, also for them to moult successfully