Some vids

[Techuser]

All from lycosas

Catching cricket (http://www.youtube.com/watch?v=Ldf-jNwY1fc)

Catching another cricket (http://www.youtube.com/watch?v=iK9kpCoZAe8)

Catching a katydid (http://www.youtube.com/watch?v=RDDLbSYc3D4)

Tweezer feeding (http://www.youtube.com/watch?v=huLPjL-gS9w)

Making ooth (http://www.youtube.com/watch?v=o__gdEn0wK4)

http://img58.imageshack.us/img58/3200/img3410sv3.jpg
http://img58.imageshack.us/img58/7671/img3416ti6.jpg
http://img58.imageshack.us/img58/8425/img2462bs4.jpg
http://img58.imageshack.us/img58/3768/img3398hm7.jpg

[Devon]

Nice spider. Do you know what spiecies of lycosa that is? Is it imported, if so from what country? It looks similar to L. carolinenensis or L. tarantula. It probably shares a simmilar life style, a burrower. Be careful some Brazillian wolf spiders are dangerous. Keep the pics and vids comming.

Devon

[Stefan2209]

Nice spider. Do you know what spiecies of lycosa that is? Is it imported, if so from what country? It looks similar to L. carolinenensis or L. tarantula. It probably shares a simmilar life style, a burrower. Be careful some Brazillian wolf spiders are dangerous. Keep the pics and vids comming.

Devon

Hi Devon,

hope it´s ok to you, if i answer this:

1.) It´s L. erythrognatha

2.) It´s not imported, Techuser is from where those roam free.... (southamerica)

3.) Sorry, it looks just as much, as L. tarantula as most other lycosids, not more, not less (i´ve both species here)

4.) To my experience L. erythrognatha just doesn´t live in burrows, like the L. tarantula´s, they just roam free....

5.) Be careful? You really know about some southamerican lycosids that are dangerous to humans?? Sounds quite interesting, which species ist this? Please enlighten me on this subject.

Greetings,

Stefan

[RottweilExpress]

Like lightning! Good work, keep it up!

[lwbfl]

Nice pics, what camera/lens etc are you using to get such sharp closeups?

[crashergs]

from the looks of those pictures hes using a canon, a510 canon powershot 3.2 megapixel camera :) nice photos from that camera

[cacoseraph]

from the looks of those pictures hes using a canon a510 canon powershot 3.2 megapixel camera :) nice photos from that camera

i know how you figured out "Canon Canon PowerShot A510" but how did you know the MP?

[Techuser]

thats right, but the videos i´ve made with a sony hi-8

about the dangerous lycosids, i think the l. raptoria is venomous, not sure

[crashergs]

how did i figure it out caco :) i know you know you elite programmer... i woudlnt doubt if you can program a duplicate picture like the ones above in cobalt hehe
you have a sony dsc-p200 caco

i love meta data, i cant believe some of these lil 3 megapixelers give out astonishing photographs

[Devon]

Hi,

What I found out about Brazilian lycosas comes from an old book American Spiders by Willis J. Gertsch Ph.D. I'll give you the paragraph.

"The poisons of a few spiders, however, are fortfied with toxins that cause severe local or systemic reactions. Some contain toxins that destroy the cells in the vicinity of the wound untill large areas of cutaneous tissue are sloughed off, exposing underlying muscles and organs. Such a progressive necrosis, often resulting in gangrene, is caused by several South American wolf spiders, notably Lycosa raptoria of Brazil."

I since see that Lycosa raptoria is now Scaptocosa raptoria.

This is from the net:

"As an illustration of his point, since the 1920s in Brazil and for decades after, the wolf spider (Lycosa raptoria, now Scaptocosa raptoria) was implicated as the major cause of necrotic wounds associated with spider bite. This conclusion was drawn from undocumented clinical observations and from the fact that intradermal inoculation of a high dose of the venom of this spider in rabbit ears leads to local necrosis.2,3 An antivenin against Lycosa venom was manufactured and used for many years4 until the association between necrotic wounds and brown recluse spider bites was observed. Empiric observation accumulated that victims of wolf spider bite did not develop necrosis. Not a single case of local necrosis was observed in a series of 515 patients bitten by wolf spiders who brought in the spider for identification"

So yes I would hate to give a spider a undeserved bad reputation but from what I had read I thought there were potenially dangerous South American Lycosa.

It's interesting to hear tha Lycosa erythrognatha Is a non-burrower. Do they ever occasionally burrow. If not, do they ever dig small pits under stones and such for moulting etc...

Devon

[Techuser]

Thanks for the texts devon

I had one that made a burrow once, before making an ooth, only one.
some of them tend to make a hide that looks like a burrow, but its just disguised layer of web with a entrance, not a true burrow

as for moulting they only need a place to hang upside down

[Arietans]

Great pics and cool videos. Alot of effort went into this thread. Thanks :)

[Stefan2209]

Hi Devon,

great work, you got that definitely right!

May i just add the last, missing bit:

Lycosa raptoria is not longer a valid name, it´s (guess what) L. erythrognatha by now....

To draw a bottom line under this: there has yet to be a lycosid researched / described / recognized that could be dubbed "dangerous" in any serious manner to humans.

For now: yeah some species grow quite big and can for sure deliver a painful bite, but that´s it, not more. The risk of necrosis is just as big (or low) as with any spider bite, regardless of species or origin, if it happens, it´s due to secondary infections.

Greetings,

Stefan

[Techuser]

:)

the hiding:
http://img234.imageshack.us/img234/3762/p2171118ot9.jpg

moulting hanged down
http://img234.imageshack.us/img234/7716/img3587gh6.jpg

[bistrobob85]

Wow, i'd Love to own some of those... I'm kinda impressed by the video on which your l.erythrognatha walks on your hand with its eggsac, hehe!!!! How big is it, actually, around 3''?

phil.

[Techuser]

I dont remember the size of that one, but adults females gets to 6cm, and males 8cm

[Arietans]

You take very good pictures. Very clear.