Marmessoidea sp. "Cat Tien"
(by Thies Büscher)
 

OrderPhasmatodea
 
SuborderVerophasmatodea 
InfraorderAnareolatae 
FamilyDiapheromeridaeKirby, 1904
SubfamilyNecrosciinaeBrunner v. Wattenwil, 1893
TribusNecrosciiniBrunner v. Wattenwil, 1893
GenusMarmessoideaBrunner v. Wattenwil, 1893
SpeciesMarmessoidea sp. "Cat Tien"(not yet described)


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General Notes

  • this culture was formerly known as Necrosciinae sp. "Cat Tien"
  • Joachim Bresseel does taxonomical work on this species and genus
  • there are various similar Necrosciinae species which are part of this new genus and are going to be described by Joachim Bresseel
  • their appearance is very similar to Necrosciinae sp. “Con Dao”, thus they might be related

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Origin

  • Joachim Bresseel (Belgium) and Jérôme Constant (RBINS) collected this species in  2012 in Cat Tien National Park, Vietnam

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Females

  • approx. 80mm (body length)
  • short winged (hind wings reach to 1/3 of the abdomen, approx. 20mm)
  • colorful; head and wings in different brown shades
  • body dorsal brown with a yellow stripe and ventral green
  • membranous part of the hind wings is dark brown
  • long antennae
  • legs are turquoise and have dark stripes

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Males

  • approx. 70mm (body length)
  • wings reach 1/3 of the Abdomen
  • colorful; head and wings in different brown shades
  • body dorsal brown with a yellow stripe and ventral green
  • membranous part of the hind wings is dark brown
  • long antennae
  • legs are turquoise and have dark stripes

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Nymphs

  • often accept crack willow (Salix fragilis) better than Laurus nobilis

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Eggs

  • hatch after 3-4 months
  • short posterior spine
  • about 5 x 1,5 mm (including spine)
  • elongated
  • grey, with elongated micropylar plate
  • often placed in clusters

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Food Plants

  • Bay laurel (Laurus nobilis)
    is accepted well
  • many willow species (Salix sp.) are accepted well; especially crack willow (Salix fragilis)
  • bramble (Rubus spp.) is well accepted   (Info Reto Bonfiglioli, Andreas Rolke)
  • I tried some different plants, but I did not find any further accepted foodplants
  • probably Salal (Gaultheria shallon) coated with Laurel also might work
  • privet (Ligustrum) is well accepted (Info von Philippe van der Schoor)

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Behaviour

  • both, nymphs and adults, are rather active during the day
  • mostly active during the night
  • if small nymphs are touched, they use thanatosis
  • older nymphs and adults (especially adult males) try to drop to the ground or crawl away, if being touched.
  • an odorous defense spray is used
  • mating and deposition of eggs occurs during the night

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Developement

  • incubation time (HH-incubation on slightly damp sand at 20 - 23 °C) is approx. 3 months
  • high hatching ratio
  • I spread some dry moss over the eggs to support the process of hatching
  • females start laying eggs after about 2 – 3 weeks
  • eggs are sticked into different substrates
  • I offer floral foam for the deposition of eggs and it is accepted very well
  • lay about 10-15 Eggs per week
  • male and female live several months (5-7)

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Breeding Notes

  • keep them  in good ventilation with moderate humidity (60%+ rH).
  • I have never sprayed nymphs or adults with water, but I have watered  the soil once a week
  • a wet towel paper could also be enough to keep up the humidity
  • keep the nymphs in a cage that offers no chance to escape; for example a prepared  faunabox works
  • when the nymphs grow bigger, move them into cages of appropriate size
  • I generally keep species separately to avoid cross-breeding and overcrowding
  • choose cages which are high enough to avoid mistakes at moult and ensure that individuals have no chance to moult in places that would lead to miss-moult

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References

  • Phasmida Species Files  (www.phasmida.orthoptera.org).
  • Grootaert&Constant, A step further in the Entomodiversity of Vietnam (Part III), 2012 (http://www.taxonomy.be/gti_calls/grants_awarded/2004-grants-obtained-rbins-promoters/grootaert-constant/annual-reports/constant-2012-report.pdf)

 

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