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wildlife spider from french guyane but name?

Discussion in 'Field Trips (Natural Habitats)' started by scriba, Dec 24, 2010.

  1. scriba

    scriba Arachnopeon

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    i guy, i am an amateur wild life photographer from france,
    i am looking for the mames of the following spider, i took theses pics in french guyana in mars 2009.
    all pics have been taken by night in tropical rain forest.

    thank.
     

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  2. Deroplatys

    Deroplatys Arachnodemon Old Timer

    UK
    Am i right in thinking that looks like a Ctenid?
    Some sort of wandering spider?
     
  3. revilo

    revilo Arachnoknight

    hi,

    without any guarantee :

    1. ancylometes spp.
    2. (right above) maybe a cupiennius spp.
    3. phoneutria spp.
    but this three are ctenidae, quite sure with this.

    4. ? no idea ? was this living and hunting in a net :eek: ??

    regards, oliver
     
  4. scriba

    scriba Arachnopeon

    my first investigation :

    1: Phoneutria_nigriventer
    it was bigger than a plate, near 25 cm of diameter (with legs).

    2 and 3 probably the same spécies, i think :
    Phoneutria fera or boliviensis, i will investigate about where it live exactly.
    size : bigger than a dvd (with legs)

    4: really don't now!
    people met it very often, the web was bigger than a square meter,
    the body only is near 3 cm
    i send a new one of it.

    thank for your help, not easy to have information!
     
    Last edited: Dec 27, 2010
  5. Tarantula_Hawk

    Tarantula_Hawk Arachnobaron Old Timer

    Hmm none of these spiders belong to the genus Phoneutria.
    First pic is an Ancylometes sp.
    2 and 3 are both Cupiennius sp.
    4 is an Araneidae.
     
  6. scriba

    scriba Arachnopeon

    revilo and Tarantula_Hawk are right about the first one, it's a ancylometes !
    i just discover this kind off amazing fishing spider.
    thank a lot men, i will be back in french guyana for tree week, i hope to meet it
    again!
    tree new pics: theraphosa leblondi, and and scorpio (thythius?) eating a leaf grasshoper (cycloptéra)
     

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    Last edited: Dec 27, 2010
  7. revilo

    revilo Arachnoknight

    hi all !

    yes, tarantula hawk is right. no. 4 is an araneidae - a quite hairy one on venter...really nice.

    but, sorry to tarantula hawk. i can't agree with no. 3 - this is not a cupiennius. for example, look at the legs and recognize the light spots on base of the spine hairs . i don't know much about the genus phoneutria, but i really belive this is one.

    to scriba : the right name is teraphosa blondi since a longer time...

    the ancylometes could be a. rufus - only could...

    regards, oli
     
  8. scriba

    scriba Arachnopeon

    hello i'm back with a close up off the third in another side, maybe it can help.
    and a last who could be a young avicularia
     
  9. Tarantula_Hawk

    Tarantula_Hawk Arachnobaron Old Timer

    Yep revilo you're probably right. After looking at 3 more carefully i agree with Phoneutria being the best guess. You can even see the typical dark stripe on the palps. My bad. :D
    I cant see the picture of scriba's last post though.
     
  10. scriba

    scriba Arachnopeon

    sorry maximum off size attachement, i try again
     

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  11. Tarantula_Hawk

    Tarantula_Hawk Arachnobaron Old Timer

    Yea, this pretty much confirms Phoneutria 100%. :)
     
  12. Michiel

    Michiel Arachnoking Old Timer

    Hi Scriba,

    wishy I could go with you :D Yes that scorpion might is a Tityus species. No other Buthid genus that resembles Tityus (like Centruroides) is reported from FG, so that narrows it down. Most probably Tityus obscurus. Can't see the scorpion good enough to sex satisfactory.....
    Guyananian scorpions are my prime interest so if you need them identified, just post the pics here.

    Cheers, Michiel
     
  13. scriba

    scriba Arachnopeon

    let's go there:

    http://www3.uni-bonn.de/die-universitaet/informationsquellen/presseinformationen/2006/455
    i don't understand anythong in german but....

    clic on pic, it's anamazing underwater pic of an ancylomete. (big size)

    i Michiel, i don't remenber how many scorpios i saw in two week in 2009!
    the weather was very dry, (el ninio or something like),during the nights
    many spiders, amblypige, and scorpio were hunting.

    i would like to show you something strange, some eggs and fly on the back of a théraphosa?
     

    Attached Files:

  14. Michiel

    Michiel Arachnoking Old Timer

    Hi Scriba,

    I don't know much about flies, but I do known that certain species are parasites and host on diverse invertebrates also spiders and scorpions. This fly could be a parasitic one that lays eggs on the host, and then the maggots have a fresh spider to eat.

    The black scorpion is a male Tityus obscurus (females have shorter and thicker pedipalpal segments). I wrote a species biography about this species on website The Scorpion Files. The changing of the season, from dry to wet or vice versa, can increase surface activity in arthropods, so when you saw so many species in 2009, you where there at the right time.
    I have contact with some people in Suriname, next to FG, and they tell me that they see most scorpions in the dry season. So in a certain season you find many, and on other times you find none at the same places....

    Thanks for posting these pics.

    Cheers, Michiel
     
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