Medaurini sp. "Khao Yai"
(by Dr. Sascha Eilmus, Germany, Biologist)

FamilyPhasmatidaeGray, 1835
SubfamilyClitumninaeBrunner v. Wattenwil, 1893
TribeMedauriniBrunner v. Wattenwil, 1893
Genus (not yet determined)
Species (not yet determined)


General Notes

  • PHASMA assessed this species in the "protected status",  because it is relatively rare reared



  • stock 1
    Thailand, Nakhon Ratchasima Region, leg. Ingo Fritzsche IX.1997 - I.1998. [this culture stock might be lost
  • stock 2
    Thailand, Khao Yai National Park, leg. Allan J. E. Harman VIII.2000



  • typical brown, bright green or beige phasmids
  • size varies around 9 to 9.5 cm
  • not winged
  • entire body is covered with small bright spots
  • the front legs bulge (femora) is colored red
  • the overall appearance is reminiscent of the Mediterranean stick insect Bacillus rossius. However, they are not closely related



  • also typical phasmids
  • about 8 cm long
  • they are not winged
  • males are red-brown in color



  • dark grey
  • round
  • bright operculum and micropylar plate
  • very small, only 1 mm


Food Plants

  • bramble (Rubus spp.)
    easily accepted by both nymphs and adults
  • other plants which are eaily accepted:
    hazel (Corylus avellana), oak (Quercus spp.), beech (Fagus spp.), rose (Rosa spp.), raspberry (Rubus idaeus) and many other plants 
  • natural host plant is unknown but it is likely that this species is polyphagous



  • freshly hatched nymphs are very small (less than 1 cm) and prefer to rest on dry leaves on the ground of the cage
  • therefore it is recommended to offer fresh food plants also on the ground of the cage when hatching starts
  • during the day, young nymphs are usually on the leaves of the food plants
  • older nymphs and adults prefer to rest on the screen of the cage with head down.


  • incubate the eggs at room temperatures (18-25°C) on some slightly humid substrate, e.g. vermiculite
  • incubation time is about 6 - 7 months at 23°C (but sometimes it can take much longer – up to 1 year)
  • they will be adult after about 3 to 4 months at about 23°C
  • females lay several eggs per day, which they just drop to the ground


Breeding Notes

  • an easy to breed species
  • one just needs to be patient because the development in the egg takes some time
  • adults and nymphs can be kept together in a big and quite airy cage
  • young nymphs have been sprayed with water 3 to 4 times a week, older nymphs an adults do not need additional water spraying
  • for a successful development and molting the terrarium was filled with a thin layer of slightly moist vermiculite on the cage floor
  • best rearing results have been achieved by just leaving the tiny eggs in the cage and keeping the vermiculite slightly moist. Drought for a few weeks does not seem to affect the eggs



  • Phasmida Species Files  (


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direct link to category: sp. (PSG 229)