Prisomera spinicollis "Sinharaja"
(by Mieke Duytschaever)


General Informations

  • first culture attempt of this species by Frank Henneman (2000)
  • a couple of this species was collected by Mieke Duytschaever near Sinharaja rainforest reserve (Weddagala, Sri Lanka) on 24 july 2014
  • first successful culture by Mieke Duytschaever (Belguim) in 2015
  • further taxonomical informations ➤
  • this is a pure culture, and serious breeders are asked 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


  • about 10 - 11 cm long
  • the collected female was 10,5 cm long and lived for about a year
  • the F1 generation females are between 10,5 and 11,3 cm long
  • coloured in different brownish shades, with distinct white stripe all over the back
  • two distinct lobes (‘Mickey mouse ears’) on the head
  • mid and hind legs also show remarkable lobes
  • few small spines of different shape and size on the thorax and the head
  • antennae as long as forelegs


  • about 8 - 9 cm long
  • the collected male (now in Oskar Conle's collection) was approx. 8 cm long
  • the F1 generation males are between 8 and 8,8 cm long
  • slender body
  • brownish colouration all over the body, black lateral line on both sides of the body
  • two small spines on the head
  • one tiny spine on every mid and hind leg, 0.5 cm beneath the knee joint
  • striped legs
  • small cerci pointing downwards
  • antennae a little bit longer than forelegs


  • brown mottled
  • unusual shape  (see picture)
  • about 3 mm long
  • with typical, exceptionally large capitulum (1 mm long and 2 mm wide)
  • with oblong, light coloured micropylar plate

Food Plants

  • a mating couple was found during a rainy night feeding on an unknown shrub  (probably Hibiscus tiliaceus, personal communication Dr. Sascha Eilmus - see picture of leaf on the right)
  • traveling through Sri Lanka I could not find this plant anymore and offered some Hibiscus spec., which was very well accepted
  • the male died rather soon. It seemed that he was older than the female which had very recently moulted to adulthood
  • at home I offered the female other Hibiscus species from my garden. She readily accepted Hibiscus Newbiscus XXL 'Mauvelous', but refused Hibiscus syriacus 'Ardens'
  • I tried several other common food plants for phasmids, but she refused all of them
  • Salal (Gaultheria shallon) was immediately accepted by the adult female
  • but the first hatched F1 nymphs refused salal, so I had some losses.  I had to feed them what was left of the Hibiscus I brought from Sri Lanka and which had rooted in the meantime
  • I put the nymphs and their mother in the same cage and gradually most of the nymphs started feeding on salal as well
  • now I fed my first generation exclusively on Salal

Breeding, Behaviour

  • an easy to breed, very nice species
  • both female and male have an exceptionally relaxed attitude
  • they don’t move even when touched, they just spread their legs and stay motionless when picked up, or cling on to a branch when disturbed, thus making maximum use of their appearance and coloration to blend in with their environment
  • they move slowly when ‘walking’
  • pleasant handling because of their relaxed behaviour
  • eggs are just dropped to the ground
  • incubate eggs at room temperature (18 - 22°C) on humid substrate, e.g. vermiculite, sand or moss
  • incubation time is about 3 - 4 months at room temperature
  • hatching ratio of F1 generation was about 70%
  • nymphs hatch easily if eggs are kept moist
  • keep the nymphs in a cage with good ventilation but still high humidity, a constantly wet paper towel on the cage floor helps raising humidity
  • small nymphs can be kept in a faunabox (or similar cage)
  • move nymphs to a bigger cage according to their size
  • males will be adult after about 4 months, females after about 5 months (at room temperature)
  • I sprayed nymphs and adults with water 3 to 4 times a week, as I found the parents in an extremely humid environment.  It was dark and pouring with rain when I spotted the mating and feeding couple, very much at ease in these wet conditions
  • to give an idea about the local situation (very humid tropical forest): ‘Based on meteorological records gathered from in and around Sinharaja over the last 60 years, annual rainfall has ranged from 3614 mm to 5006 mm and temperatures from 19°C to 34°C.’
  • it can help to take natural circumstances as a guide line, but it is not absolutely necessary: like most phasmids, Prisomera spinicollis "Sinharaja" tolerates a fairly wide range of conditions

Many thanks to Stanislav Krejcik and François Tetaert for the pictures


Useful informations

detailed infos on how to breed phasmids

infos on newly cultured phasmid species

Online Culture List

PSG list

how to recognize the difference between male / female nymphs

eggs for breeding


direct link to this category

direct link to category: ignava