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Project Noah Nature School
Family Araneidae
Telas orbiculares
Habito diurno Dimorfismo sexual
That's ok.. thank both... At the moment I`m going to recopilate many information about this spider and then will submit the draft to their respective targets.
Then, I will send you the information.
Thanks again
If you need any information to execute or proceed through a project let me be involved with the queries I am asking in series. Your specific responses may involve me in your project and that will be a real one.
Now proceed accordingly.
Good luck & cheers.
The other things that need to be known about this spider would be: 1) what is their preferred habitat?, 2) what does the egg sac look like? - need many photos, 3) in the micro-habitat where this spider lives, is there a species of plant that has black and red spines like the spider? That last comment was just a guess, remember, in the micro-habitat where Micrathena and Gasteracantha live, there is no plant in particular, that the spider might be mimmicing. It would seem that the spines on Micrathena and Gasteracantha are to make the spider unpalatable, but NOT plant mimmicry.
The other things that need to be known about this spider would be: 1) what is tieir preferred habitat?, 2) what does the egg sac look like? - need many photos, 3) in the micro-habitat where this spider lives, is there a species of plant that has blank and red spines like the spider? That last comment was just a guess, remember, in the micro-habitat where Micrathena and Gasteracantha live, there is no plant in particular, that the spider might be mimicing. It would seem that the spines on Micrathena and Gasteracantha are to make the spider unpalatable, but NOT plant mimicry.
OK, I will help. The first thing you must do is find the male, and also get many good photos of the female's web from different angles, with and without cornstarch (maizena). Jon Coddington, of the USNM Smithsonian, has published articles describing how to sprinkle cornstarch on spider webs for photography. The male will be found sitting at the edge of the female's web. This might be during the day, especially on a cloudy day, but more likely he will be seen at night, you must use a head lamp. The male might be just like the female but with large pedipalps, or just like the female but somewhat smaller and with the spines on the abdomen very small or nonexistant. He might be red or black, and he might be VERY tiny with an elongate abdomen or with a rounded abdomen.
John thank you for your info!!!!
Thats great!!!
I would like to start some proyect with this specie because in september I come back to Puerto Inirida
@John A Kochaka, could you send the details (specimen,photograps of dorsal, lateral & ventral views, measurements,habitat ,date & time of your collection etc). Then it can be prepared for publication after comparative studies?
That's pretty awesome John. I'm trying to get more acquainted with spider identification myself, and have some pictures that I need help identifying, maybe you can help out with that. I look forward to seeing some of your uploads!
I am an arachnologist with a specialty in spiders and also an entomologist, - also I study all freshwater and terrestrial invertebrates in Paraguay. In the 1970's I was studying the biogeography of spiders in the Sierra Nevada de Santa Marta, where I collected Josa sp. (Anyphaenidae) at an altitude of 18,200 feet (aprox. 5560m) but have not published yet. This may be the highest altitude at which any spider has ever been collected outside of the Himalayas.
Your information its amazing... thanks... I`m gonna read about this......
In August of this year I`m going to go back to Puerto Inirida and could be very interesting recolect two specimens :D
Now I am in my lab again and I have checked my books. The spider is Rubrepeira rubronigra, female. Distributed from Mexico to the Amazon Region of Brazil, it is a rather rare and poorly known species. No one has ever found a male specimen of this species. Read: H.W.Levi, 1991. The American species of the orb-weaver genus Carepalxis and the new genus Rubrepeira (Araneae: Araneidae). Psyche, vol. 98, no. 2-3: 251-264.
We need to have the original size to sort in to group but there is no doubt about the rareness of this species it is really interesting.
If I could go through the specimen or can get some more information like details of ventral view with photographs and scale and eye character with photographs
No solo es preciosa sino además muy muy interesante por los comentarios que hay.
THERE IS NO DOUBT ABOUT THE UNIQUENESS OF THE SPIDERS !
I THOUGHT THIS IS REALLY A RARE ONE. IN FAMILY ARANEIDAE IT IS IMILAR TO A CYCLOSA (SIZE IS ABNORMALLY LARGE LOOKING), a NEPHILA (HIGHLY DIVERSE) AND EVEN WITH THELACANTHA (NOT COMPARABLE WITH THE EXISTING SPECIES). A VIVID TAXONOMIC STUDY IS REQUIRE WITH THE ULTRA MICROSCOPIC VIEWS ON EPIGYNE,AND DETAILS OF THE SPINNERET.
THERE IS NO DOUBT ABOUT THE UNIQUENESS OF THE SPIDERS !
I THOUGHT THIS IS REALLY A RARE ONE. IN FAMILY ARANEIDAE IT IS IMILAR TO A CYCLOSA (SIZE IS ABNORMALLY LARGE LOOKING), a NEPHILA (HIGHLY DIVERSE) AND EVEN WITH THELACANTHA (NOT COMPARABLE WITH THE EXISTING SPECIES). A VIVID TAXONOMIC STUDY IS REQUIRE WITH THE ULTRA MICROSCOPIC VIEWS ON EPIGYNE,AND DETAILS OF THE SPINNERET.
I think this is Rubrepeira rubronigra, but I haven't checked my books yet. Your specimen is a female. If I remember correctly, no one has ever collected a male specimen of the genus Rubrepeira, - there is much work to be done !!!
I think this is Rubrepeira rubronigra, but I haven't checked my books yet. Your specimen is a female. If I remember correctly, no one has ever collected a male specimen of the genus Rubepeira, - there is much work to be done !!!
that´s right!!!! Colombia, Guania, Puerto Inirida, Resguardo Indígena Almidón la Ceiba.....
I can identify this Araneidae spider, but I will need my books (H.W.Levi), which I do not have at the moment. I think, if I remember correctly, that this genus has only one species in the world. I would assume that this photo is from somewhere in South America, - ¿ correcto ?
Spotted on Mar 23, 2010
Submitted on Apr 17, 2011
