We need more captive-bred native Aphonopelma's in the hobby

sjl197

Arachnoknight
Old Timer
Joined
Feb 3, 2008
Messages
240
Well, upto you if you go ahead and breed, but i would suggest your identifications are at best tenuous, and i wouldn't like to see your spiderlings flood into the marked based on that. It is of course really great you looked into how to identify your tarantulas, but im not sure of the experience level of the entomology professor you refer to. He may be awesome at identifying bees or such, but does he have much experience with tarantula identification? As i see it you bought them as unidentified (well "U.S. Desert Tarantulas" to me means unidentified, probably 'Aphonopelma'), and you have no idea where in USA they/their ancestors were collected? That is one of the most critical bits of information that is often vital to make an identification.

In this investigation, did you at any point look at Smith (1994) tarantulas of the USA?
Though outdated now, and much is changing rapidly at the moment in Aphonopelma identification, this is still the best published guide, at least to working out which of his '1994 species' you might be looking at.

Some of the contained information is here:
http://aphonopelma.wordpress.com/category/california/
however, all of it is here:
http://lovetarantulas.com/downloads.htm

Also, how did you look at the specimens? Did you use skins, or did you hold actual live spiders, because some features such as the spines on the coxa of palp and legI are only really possible to see on a whole dead preserved specimen. Basically, you need to remove the entire leg1 and palp from the dead specimen to take a good look at those features.

Just asking, because alot of information on the internet and field guides is complete bunk. They'll say about what they *think* are A.hentzi, A.anax, A.eutylenum, A.reversum, A.chalcodes, or maybe throw in couple of others poorly researched names. Often though its a brown spider from no recorded location that authors often seemingly haphazardly assign to one of those top-choice species names. I'm seeing such problems with online 'crowd-sourcing' websites (e.g. iNaturalist) that try to make taxonomic identifications of photographs based on other mislabeled or unknown photographs, basically if its Texas or East, then its pretty much going to be guessed to be A.hentzi, if its in California it will be guessed to be A.eutylenum, and if its from anywhere in the Americas and black with red abdomen, it will be guessed to be B.vagans.

E.g. http://www.inaturalist.org/observations/133946
Love how there when someone guesses something so random and poorly informed as this, and another uninformed person agrees, then it still becomes a 'research grade' identification. Despite both of them clearly being wrong because Brachypelma certainly dont range so far north..

@Spiderkid, before even thinking to sell spiderlings as A.brunnius, at least please have a good talk to tarantula enthusiasts around Bay Area, California. The species A.brunnius is only from around San Francisco bay area. Im sure there are people on here from there, or there is a local tarantula society there who's members can likely show you what A.brunnius actually looks like, based on specimens collected at/near the original collection locality. Don't loose heart though, i'm greatly impressed you have made the starting steps to properly identify what you have. Many people just vaguely colour match photos, and if it looks superficially similar to that photo of a poorly identified spider, well bingo. That's NOT how to do it.

Looking forward to seeing your pics posted. Glad you took time and care to seek out advice on identification of your finds, and well done for getting people here talking about the native USA species, which can be just as amazing as the foreign imports.
 

zonbonzovi

Creeping beneath you
Old Timer
Joined
Oct 20, 2008
Messages
3,346
The good doctor(and others) are working on this and based on a presentation I was at the previous summer, there will be some surprises regarding this genus. Before anyone gets too excited about breeding US Aphonopelma, please recognize that some of the tarantulas that appear to be the same physiologically may turn out to be quite different. Tread carefully, Aphonopelma lovers;)

http://www.millsaps.edu/academics/biology_faculty_research.php
 

BrettG

Arachnoprince
Old Timer
Joined
Aug 19, 2009
Messages
1,315
A.brunnis=what people were calling A.smithi? I have a m/f pair from the Bay area,mean little suckers.The female produced a sack at only 3.5 inches.
 

Spiderkid

Arachnosquire
Old Timer
Joined
Sep 29, 2012
Messages
50
In this investigation, did you at any point look at Smith (1994) tarantulas of the USA?
Though outdated now, and much is changing rapidly at the moment in Aphonopelma identification, this is still the best published guide, at least to working out which of his '1994 species' you might be looking at.

Some of the contained information is here:
http://aphonopelma.wordpress.com/category/california/
however, all of it is here:
http://lovetarantulas.com/downloads.htm

Also, how did you look at the specimens? Did you use skins, or did you hold actual live spiders, because some features such as the spines on the coxa of palp and legI are only really possible to see on a whole dead preserved specimen. Basically, you need to remove the entire leg1 and palp from the dead specimen to take a good look at those features.
Yes, that was one of the resources we looked at. There was also some interesting stuff written by R.V. Chamberlin (New tarantulas from the southwestern states), T.R. Prentice [Theraphosidae of the Mojave Desert west and north of the Colorado River (Araneae, Mygalomorphae, Theraphosidae)], C. P. Smith ( A preliminary study of the Araneae Theraphosidae of California), and the World Spider Catalog (v. 9.0). There were a few others books, which I can't seem to remember the authors of :( . The spiders we were identifying were live, and (for the most part) were tractable and pretty easy to work with. I was thinking that if we could imobilize the spiders with CO2, we could use a microscope to get a better idea of what exact species we have. Would this be a feasible idea, in your opinion? BTW, thanks for responding- it's awesome to have the help of an expert :D
 

arachnidsrva

Arachnoknight
Joined
Nov 16, 2011
Messages
186
Aphonopelma anything is hands down my favorite. When Monica and I randomly came into a collection for sale. (How I got into the hobby) - For some reason I was glued to Portia ( A. chalcodes ) I've had her for two years now and she's still missing a leg. Out of over 80 different species that I picked up that day, she stood out amongst the rest of them.

Later - I was able to even pin-point through the grape-vine which colony in AZ that she came from.
(the guy who harvested her)

There is a huge difference between "harvesting" and "mining". But eventually humans wipe it all out.

Aside from chalcodes and hentzi - you'd dont see too much in the hobby. From my experience 95% of them are wild-caught where as bicoloratum is a big deal over in Germany. Aphonopelma anything is HUGE is Germany, but here since they're native people don't seem to notice as much.

I consider chalcodes to be predictable and docile.
 

Palespider

Arachnodemon
Old Timer
Joined
May 30, 2003
Messages
680
Bump for also wanting to see more captive bred Aphonopelma's in hobby. The fact that they only carry type I urticating hairs, should make them a gem to some of the people like me that are sensitive to them (since type III are supposed to be the hairs that mammals are more susceptible to). There may be more variables that I'm not considering, but I never seem to get a reaction handling my Aphonopelma sp, while Brachy's drive me nuts! They also seem to not use their hairs like my B. boehmei and B. smithi do, they like to run instead =)
 

Bugmom

Arachnolord
Joined
May 28, 2012
Messages
646
I plan to breed my confirmed A. hentzi female... assuming I can ever find her a date.

Considering that it takes like 8+ years for Aphonopelma males to mature, and slings don't sell for much, the lack of captive bred slings isn't all that surprising.

Plus people seem to want colorful, fast-growing, entertaining T's. Unless you appreciate the browns/blacks/tans of the genus, don't want something that grows 2" a year, and don't care about infrequency of molts, you're probably going to pass on the genus. I mean, how many threads have you seen asking which Aphonopelma someone should get? I can think of.... none.

I love Aphonopelmas, and have three at home. I think they are highly underrated.

Blame Tapatalk + "smart" phone for the typos kthnx
 

Palespider

Arachnodemon
Old Timer
Joined
May 30, 2003
Messages
680
IMO, there are quite a few striking Aphonopelma's. Obviously A. bicoloratum, and I really like the contrast on the adult A. hentzi, and chalcodes. I also find their raised carapaces attractive, makes them very unique and gives them a beefy appearance XD

As far as growth rate, I have only acquired captive bred adults (hentzi and chalcodes), but I keep hearing that B. boehmei are very slow growers as well, but from my experience, they have been quite the opposite.

I plan to breed my confirmed A. hentzi female... assuming I can ever find her a date.

Considering that it takes like 8+ years for Aphonopelma males to mature, and slings don't sell for much, the lack of captive bred slings isn't all that surprising.

Plus people seem to want colorful, fast-growing, entertaining T's. Unless you appreciate the browns/blacks/tans of the genus, don't want something that grows 2" a year, and don't care about infrequency of molts, you're probably going to pass on the genus. I mean, how many threads have you seen asking which Aphonopelma someone should get? I can think of.... none.

I love Aphonopelmas, and have three at home. I think they are highly underrated.

Blame Tapatalk + "smart" phone for the typos kthnx
 

Bugmom

Arachnolord
Joined
May 28, 2012
Messages
646
IMO, there are quite a few striking Aphonopelma's. Obviously A. bicoloratum, and I really like the contrast on the adult A. hentzi, and chalcodes. I also find their raised carapaces attractive, makes them very unique and gives them a beefy appearance XD

As far as growth rate, I have only acquired captive bred adults (hentzi and chalcodes), but I keep hearing that B. boehmei are very slow growers as well, but from my experience, they have been quite the opposite.
I love the beefiness of my hentzi. And she was a gorgeous reddish brown that molted to an amazingly rich black. She's just like... a tank.

My mature female A. hentzi is fed weekly and has molted once in 10 months. My juvie Aphonopelma sp. Idunnowhat has not molted since I found it in... hmm.. I can't recall, wanna say June... but also only eats 1-2 times a month. My Flagstaff orange hasn't ate in my care, but I've only had him... hmm... three weeks I think. He's just not settled in yet I guess.

So slow growers in my experience.

Blame Tapatalk + "smart" phone for the typos kthnx
 

Palespider

Arachnodemon
Old Timer
Joined
May 30, 2003
Messages
680
I'll have to find it, but in a thread a few of us discussed the growth rate of a couple Brachy's, and the same species had very diff growth rates for some of us. Maybe some react differently to higher temps and being powerfed compared to others, not sure. Interesting info though, thx^^


I love the beefiness of my hentzi. And she was a gorgeous reddish brown that molted to an amazingly rich black. She's just like... a tank.

My mature female A. hentzi is fed weekly and has molted once in 10 months. My juvie Aphonopelma sp. Idunnowhat has not molted since I found it in... hmm.. I can't recall, wanna say June... but also only eats 1-2 times a month. My Flagstaff orange hasn't ate in my care, but I've only had him... hmm... three weeks I think. He's just not settled in yet I guess.

So slow growers in my experience.

Blame Tapatalk + "smart" phone for the typos kthnx
 
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