Science, ecology, biology, predicitive spatial modelling and the joy of discovery with a focus on Australian Tarantulas and invertebrates

Friday, November 14, 2008

New species 2008 - Australian Tarantulas

I preface this post by advising that Dr Rob Raven is currently revising Australian tarantulas and we believe that a major work is about to be released. I do not have a date but am advised it will be soon. This work will contain many surprises and will probably turn most of our current classifications on their head (pers. comm. S. Nunn). The information here is therefore based on our knowledge at the present time and it is almost certain to become outdated upon release of Rob Raven's forthcoming work.

Until then it is worth noting the very exciting discoveries or rediscoveries of tarantula species that have been made in the last 12 months.

Brendan Stent of Tropical Tarantulas found a possible new genus named tentatively the Rattlesnake Tarantula in February 2008. This amazing species makes a sound simlar to a rattle snake when aggravated. Apparently Rob Raven knew of this species but Brendan was the person that first brought this species to the public which makes it one very exciting discovery by Brendan. Brendan also found another species which appears to be somewhere between Selenotypus plumipes and Selenotypus sp. "Nebo" and has been given the placeholder name Selenotypus sp. "plumebo". The video shows the Rattlesnake Tarantula using its unique stridulating organ to produce its characteristic rattler sound.




YouTube video of Rattlesnake Tarantula filmed by Brendan Stent

Another interesting species that surfaced in 2008 is the Ghost Tarantula announced by Steve Nunn in June 2008. This species has a unique pale colour with white setae which is very unusual for Australian tarantulas. In addition it was found in swamp habitat. Unfortunately the single specimen that was collected moulted out to a male so at present an active captive breeding program has not been commenced. It will take another collecting mission to get this species breeding in captivity but it will certainly be a very highly sought after species due to its colour.


Ghost Tarantula

Ghost Tarantula - Photo by Steve Nunn

In a year of big discoveries and new species perhaps the biggest impact on Australian enthusiasts was made by Steve Nunn’s announcement of the discovery by a collector of Phlogius sp. "Goliath" or the Australian Goliath Tarantula. This species is possibly the largest species discovered to date and reaches at least 20cm as a mature adult. I managed to acquire a couple of specimens of the Goliath that were not required for the breeding program that was immediately established and they are truly a fascinating species. Steve advises that this was actually a rediscovery of a species not seen for 103 years despite attempts to locate it and that there is only a single specimen in the Queensland Museum (Australia) incorrectly labelled as Phlogius crassipes. Several matings have been reported by those involved in the breeding program led by Steve and we are waiting impatiently for the first spiderlings to appear. Greg Bylund, of the Green Scorpion, produced the first captive bred eggsac in July 2008 but unfortunately the female ate the eggs before he had a chance to remove the sac for incubation. Greg and Steve have other gravid females and spiderlings are expected by December 2008. This was the first time that a captive breeding program was established at the outset and is a model that will hopefully be reproduced in the future.


Phlogius sp. Goliath

Phlogius sp. "Goliath" - photo by Steve Nunn

Phlogius strenuus is another giant that is rare in collections but has been bred in 2008 by Greg Bylund and Grant Miller. No doubt other individuals will also be breeding this species in 2008. Its captive breeding status is secure for now. This species although not a new discovery is highly sought after and thus the successful captive breeding program has been an initiative of tremendous importance. There have been other giants found this year but as they have not been publicly announced I will hold fire on making an announcement on this site.

The tentatively named Phlogius sp. "Rubiseta" (yes I know that doesn't quite work but its only a placeholder name) was announced by Greg Bylund in March 2008. There has been some discussion to date as to whether this is a new species or whether it is synonymous with the previously discovered Stents Tarantula however we will know soon enough the eventual outcome. The redish colouration makes this a very attractive tarantula.

Phlogius sp. "rubiseta"

Phlogius sp. "rubiseta" - photo by Grant Miller

Greg Bylund announced the discovery of an entirely new genus in September 2008 in the form of the tentatively named JT Tarantula. A new genus is certainly big news. This species lives in very harsh dry conditions and is an incredible discovery. Early reports from keepers are that this is a very docile species which should make it very popular indeed.


JT Tarantula

JT Tarantula and burrow - photo by Greg Bylund

Just this month Brendan announced another species he discovered which has been named the Banded Phlogius. This is another very fine looking species with fine bands of white setae at the end of leg segments which are especially noticeable on legs I and II.

Two persistent rumours continue to circulate. One relates to a nearly pure white form of tarantula, whiter than the Ghost Tarantula, and another relates to a metallic blue tarantula. It would not surprise me if one or both of these rumours turn out to be correct as most of Australia is unexplored for tarantulas and new species are being found at an amazing rate. Given Australia’s geological history I would not even be surprised to hear the Selenosmia dichromata turned up somewhere in the northern tropics of Australia.

6 comments:

  1. Are there any in Australia in size compared to that of the Amazon Goliath Tarantula, which is supposedly the Biggest Tarantula in the world so far? And could it be possible to discover another kind of spider that isnt tarantula but still another Large family equivalent or bigger than the Tarantula Species that is yet to be discovered?

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  2. Thus far mate there is no sp in aus that get the 12 inch Legspan, one huntsman species gets to over 210mm but so far the biggest T in aus i've seen was 220mm 8cm off the Blonie.. not bad in my opinion.

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  3. That was a Phlogius Strennus Btw

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  4. I heard from someone today that the tweed valley shire council have discovered that someone has been releasing south american Goliath tarantulas into the wild throughout the Carool Bilambil Hills and are being discovered regularly,some idiot that did that, there now worried they could be multiplying rapidly and have dispatched a team to try and eradicate them quietly.

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  5. What temperature should a Phlogius Goliath should be, I have one and in Sydney is now rather cold. I am able to keep her between 23 and 25C. and about 85% humidity Is that enough
    thanks!

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  6. Those spiders are nothing compared to the ones my Uncle has because he has discovered a new species.

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