Mithrenes sp. "Negros"
(by Bruno Kneubuehler)
 

OrderPhasmatodea
 
SuborderVerophasmatodea 
InfraorderAnareolatae 
FamilyPhasmatidae Gray, 1853
SubfamilyLonchodinaeBrunner v. Wattenwil, 1893
TribeLonchodiniBrunner v. Wattenwil, 1893
GenusMithrenesStål, 1877
SpeciesMithrenes sp. "Negros"(not yet identified)


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General Notes

  • the taxonomic position of this species is subject to current research by Joachim Bresseel (Belguim)
  • 2009 - first successful culture by Bruno Kneubuehler
  • 2010 - distributed to other breeders as Mithrenes sp. "Negros"

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Origin

  • collected by J. Arimas (Negros-Occidental) in Mai 2008 on Mt. Kanlaon and Mt. Mandalagan (two volcanos in nothern Negros, Philippines)

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Females

  • very typical stick insects
  • about 10 - 10,5 cm long
  • upper body side is green
  • underside is green-brown, brown or brown-black
  • long antennae
  • no spines
  • wingless

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Males

  • very typical stick insects too
  • about 8 cm long
  • body is coloured red-brown
  • head and legs are brown
  • long antennae
  • no spines
  • wingless

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Nymphs (L1)

  • yellow-green coloured
  • antennae with white tips

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Eggs

  • irregularely shaped, typical for the genus Mithrenes
  • about 3 x 2 mm
  • mottled with different brown shades

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Food Plants

  • they feed very well on Privet (Ligustrum sp.)
  • no other food plant has been accepted

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Defensive Behaviour

  • if they feel threatened, they just freeze
  • they do not display an active flight

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Breeding Notes

  • actually an easy species, but their specific food requirements make their culture a bit more complicated
  • incubation with the HH-method or on damp (not too wet) sand, with springtails to reduce mould growth
  • incubation time at room temperatures (20 - 23°C) is about 5 - 6 months
  • hatching ratio has been rather low (about 30 %) for 2 generations
  • mortality of the nymphs is low
  • keep the nymphs in a cage with good ventilation
  • take care that the humidity does not drop too low
  • a constantly wet paper towel on the bottom of the cage helps raising humidity
  • nymphs and adults can be kept in a Faunabox (or similar cage)
  • 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
  • males will be adult after about 3 months (at 20 - 23°C), females after 4 - 4,5 months
  • females start to lay eggs after about 3 - 4 weeks
  • about 10 eggs are laid per female and per week
  • eggs are just dropped to the ground

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References

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

direct link to this category

direct link to category: sp. (Negros 1)