Prexaspes cneius "Saül"
(by Yannick Bellanger)


General Informations

  • provenience: Saül (French Guiana)
  • collected by ASPER (FR) in October 2013
  • F1 CB culture in 2014 by Yannick Bellanger (FR)
  • further taxonomical informations ➤ Phasmida Species Files
  • this is a pure culture, and serious breeders are requested to avoid mixing this culture with similar populations from a different provenience. When spreading this culture to other breeders, then always use the full name with provenience


  • slender species
  • body length 7 cm
  • greenish with grey-brown wings
  • winged
  • antennae shorter than body


  • very slender
  • body length 5 cm
  • greenish with grey-brown wings
  • antennae sligthly shorter than body


  • freshly hatched nymphs are light green
  • about 10 mm
  • on how to distinguish between male and female nymphs


  • 2.5 x 1 mm
  • dark brown or even black
  • suface looks furry

Food Plants

  • hypericum (Hypericum "Hidcote")
    well accepted by nymphs and adults

Breeding, Behaviour

  • nocturnal species, nymphs and adults spend the day time in the branchs and under leaves
  • adults rarely try to fly
  • incubation (on humid peat at 18 - 20 °C) is about 3 months
  • males are adults (at 18-22°C) in 3.5 months, females in 4 months
  • I keep this species in a humid cage with a little bit of ventilation
  • nymphs can be kept with adults but this species dislikes overpopulation. If there are too many specimens in the same cage, they die without apparent reason
  • I spray water on the ground about 2 times per week and sometime on the leaves
  • this species likes a high level of humidity

Basics of phasmids breeding

  • keep only one species per cage, overpopulation is one of the main reasons for breeding failures
  • choose the cage big enough. When in doubt, too big is (usually) better than too small
  • a ventilator often supports good breeding results, as it seems to increase activity and feeding
  • provide enough light, but avoid direct sunlight (overheating)
  • try to keep day time temperatures below 25°C
  • a nocturnal fall of temperature is natural, and thus advantageous
  • do not spray too much, phasmids are no fish ! Allow the water to dry up before you spray again
  • minimize disturbances (loud music, commotions, light at or during the night, opening up cages in the morning [often a moulting phase] ect.)

Useful informations

detailed infos on how to breed phasmids

infos on newly cultured phasmid species

how to recognize the difference between male / female nymphs

eggs for breeding


direct link to this category

direct link to category: cneius (Saül, French Guiana)