Alienobostra brocki
(by Sascha Eilmus)
 

OrderPhasmatodea
 
SuborderVerophasmatodea 
InfraorderAnareolatae 
FamilyDiapheromeridae Kirby, 1904
SubfamilyDiapheromerinaeKirby, 1904
TribeDiapheromerini Kirby, 1904
GenusAlienobostraZompro, 2001
SpeciesAlienobostra brocki(Hausleithner, 1987)


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General Notes

  • Hausleithner (1987) described this species first as Calynda brocki

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Culture History

  • Stock 1: Costa Rica, imported by a reasearch worker in the early 1980's
  • Stock 2: Costa Rica, imported by an unknown person as "Calynda sp." in 2005
  • Stock 3: Costa Rica, Santa Elena, Monteverde, imported by Sascha Eilmus in 2012

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Origin

  • my culture stock has been collected by myself (Sascha Eilmus) on a journey to Costa Rica in July 2012 at Santa Elena, Monteverde, Costa Rica

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Females

  • brown, bright green or dirty green, not winged phasmids
  • the size of the F1 generation varied from 14 to 16 cm. Females in the wild only reached 12 cm to 13 cm
  • two parallel bright stripes on the back
  • 2 blunt spines on the head
  • typical long subgenital plate

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Males

  • also typical phasmids - about 8 to 10 cm long
  • they are not winged

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Behaviour

  • Males as females can behave very hysteric and stagger around when being touched
  • this makes is not so easy to change food plants. You should handle them carefully. But they do not tend to drop legs

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Eggs

  • beige, about 3 mm long
  • incubate the eggs at room temperatures (18-25°C) on some humid substrate, e.g. vermiculite
  • incubation time is about 3 - 4 months

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Food Plants

  • bramble (Rubus spp.)
    is very well accepted by nymphs and adults
  • privet (Ligustrum spp.)
    is very well accepted by nymphs and adults
  • hazel (Corylus avellana), oak (Quercus spp.), rose (Rosa spp.) and raspberry (Rubus idaeus) have been mention in the literature as alternative host plants
  • In nature the females have been found feeding on plants of the families Melastomataceae and Asteraceae
  • firethorn (Pyracantha) is well accepted  (info by Pietro Missiaggia)

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Breeding Notes

  • an easy to breed, attractive and quit big species
  • during the day, nymphs are usually on the leaves of the food plants, sometimes with their abdomen in a "zigzag" position
  • keep nymphs in a normal terrarium (for increased humidity)
  • move nymphs to a bigger cage according to their size as they grow up
  • adults can be kept in quite an airy cage
  • adult moult will happen after about 3 to 4 months at about 23°C
  • females lay several eggs per day, which they just drop to the ground
  • nymphs and adults have been sprayed with water 3 to 4 times a week
  • for a successful development and moult the terrarium was filled with a thin layer of moist vermiculite on the cage floor. Note that the original habitat of this stock is a very wet tropical mountain cloud forest

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References

  • Phasmida Species Files  (www.phasmida.orthoptera.org)
  • Phasmatodea.com
  • Schulten. 1995. Wandelnde Blätter, Stab- und Gespenstschrecken, (Calynda brocki)
  • Seiler, C. & et al. 2000. Phasmiden Pflege und Zucht von Gespenstschrecken, Stabschrecken und Wandelnden Blattern im Terrarium, (Calynda brocki)
  • Eilmus S, Dernbach A. and Strumo R: Costa Rica - ein Reisebericht und Beobachtungen zu bemerkenswerten Vertretern der Stab- und Gespenstschrecken (Phasmatodea). ZAG Phoenix, ISSN 2190-3476, Jahrgang 3, Nr. 2, 2012

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