I also have a A.brocklehursti where the bands are a bit thinner to other A.geniculata juvi's I have seen. So if you don't see a diff then how sure are you that you are in fact not sitting with a geniculata instead of a brocklehursti?

@ jones the only tell tale sign is the bands thats what makes it so hard to tell . Thats only one site I got the info from Im sure there is more sites out there with even more info more indepth study has been done ..

If im not mistaken also Sexing the cast skin can tell you what species it is ..

Gemini wrote:

ok so this is a very interesting topic...

I got one of both and BOTH have thick bands....

Acanthoscurria geniculata

Gemini I think the top picture isAcanthoscurria brocklehursti and the bottom one isAcanthoscurria geniculata .. still a bit unsure though

can you maybe take another pic of the secound TS from behind or both

SpoQ wrote:

I also have a A.brocklehursti where the bands are a bit thinner to other A.geniculata juvi's I have seen. So if you don't see a diff then how sure are you that you are in fact not sitting with a geniculata instead of a brocklehursti?

well thats the problem as well I have not found any info telling me how to tell the diffrence between the two if you have the same species and you cant see the diffrence

You will be able to tell the diffrence between the males as clear as night and day :S

As for the females Im stumpid .

No one has gone into a indepth talk about its mostly the same old suggestion check the leg markings unless we can find some who does taxonmy they should be able to find some thing well thats only a suggestion mite not even work ...

some thing else I found after surfing the interweb for 4 hours but still no hard facts ..



brocklehursti and geniculata, what is the main difference between the two?

They look very similar,the red in the brocklehursti is a little more vibrant, the leg bandings are a bit different, the brocklehursti seems to be more black as the genics seem to have a lighter undertone...I have 4 genics and 2 brocklehursti, we all know how well genics eat, IMO I think the brocklehursti are a little more "energetic" at feeding time, it has been said that some people think that brocklehursti are just a colour varient, either way they are very interesting spiders...

cascade I will try take other pics asap, both of mine are males....