Necrosciinae sp. "Attapeu"
(by Bruno Kneubuehler) 

 

OrderPhasmatodea
 
SuborderVerophasmatodea 
InfraorderAnareolatae 
FamilyDiapheromeridaeKirby, 1904
SubfamilyNecrosciinaeBrunner v. Wattenwyl, 1893
Genus  not yet specified
SpeciesNecrosciinae sp. "Attapeu"not yet specified

 

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Allgemeine Bemerkungen

  • 2012 - so far it has not been possible to identifiy this species. Some
             taxonomic characteristics imply that this species belongs
             to the subfamily Necrosciinae (Joachim Bresseel, pers. comm.)
  • 2012 - first successful culture by Bruno Kneubuehler
  • 2012 - this species is being distributed as Necrosciinae sp. "Attapeu"

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Origin

  • Dr. Michel Brancucci (Switzerland) found this species in June 2011 in Attapeu (Laos)

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Females

  • inconspicuous, typical phasmids
  • about 8.5 - 9.5 cm long
  • coloration is variable between amongst females (in F1 generation)
  • brown, reddish-brown, brown-green and green females
  • antennae longer than fore legs
  • they have very small, rudimentary hind wings (alae)
  • body surface is strongly granulated

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Males

  • thin phasmids
  • about 7 - 7.5 cm
  • coloration of males in F1 generation is highly variable
  • very dark (almost black), brown, reddish-brown and green males
  • a reddish-brown stripe borders the pro- and mesothorax (laterally)
  • they have very small, rudimentary hind wings (alae)
  • antennae are longer than fore legs

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Nymphs

  • about 16 mm (L1)
  • dark brown (L1)
  • older nymphs have a wide colour spectrum - brown (with or without dark longitudinal stripes), green, green-brown
  • antennae longer than fore legs
  • distinction between males and females (by the naked eye) is easily possible with older nymphs (about L4)

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Eggs

  • about 2 x 1.5 mm
  • mottled with shades of brown
  • no Capitulum present
  • the micorpylar plate is light brown, with a clear Y-shaped structure

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Food Plants

  • bramble (Rubus sp.) - is easily accepted by freshly hatched nymphs, older nymphs and adults

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Behaviour

  • nymphs and adults often fein death when being touched or let themselves drop to the ground
  • if they feel threatened, the might try to crawl away - just to freeze again after a few steps
  • matings occur during the night, males do not stay with a single female for a prolonged time

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Developement

  • incubation time (HH-incubation on slightly damp sand at 20 - 23 °C) is about 4 - 4.5 months
  • spread some dry moss over the eggs - this will make it much easier for the nymphs to hatch unscathed and it also reduces mould growth to some extend
  • hatching ratio was high (> 50%)
  • males will be adult after about 2.5 months (at 20 - 23°C), females after about 3 - 3.5 months
  • females start to lay eggs after about 2 - 3 weeks
  • eggs are just dropped to the ground
  • about 20 - 30 eggs per week and female
  • adults live for several months

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Breeding Notes

  • an very easy to keep species
  • keep the nymphs in a cage with good ventilation
  • but take care that the humidity does not drop too low
  • a constantly wet paper towel on the floor of the cage helps raising humidity
  • nymphs can be kept in a Faunabox (or similar cages)
  • move nymphs to a bigger cage as they grow bigger
  • I have never sprayed nymphs or adults with water
  • make shure that nymphs, which are about to undergo their adult moult, do not find places in the cage which would not offer them enough space beneath to moult successfully

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References

  • Phasmida Species Files  (www.phasmida.orthoptera.org)

     

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direct link to category: Necrosciinae sp. (Attapeu, Laos)