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cacoseraph

Tiny Mygalomorphae (USA Natives)

Tiny Mygalomorphae (USA Natives)

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The recent post on the Microhexura montivaga (Spruce-fir moss spider) ( http://www.arachnoboards.com/ab/showthread.php?t=117703 ) has gotten me thinking about tiny mygs again.


I was wondering what the smallest mygs in the USA were?


I think maybe Hexurella might be small? obviously Microhexura is pretty tiny.

What are the other small ones out there? (bonus points for being in southern california)


clone threads:
http://venomlist.com/forums/index.php?showtopic=20157
http://www.arachnofreaks.com/forum/forum_posts.asp?TID=4167&PN=1
http://atshq.org/forum/showthread.php?t=15240
http://z4.invisionfree.com/HerpinVerts/index.php?showtopic=3997
http://www.arachnophiles.co.uk/forum/showthread.php?t=6039
http://www.the-t-store.co.uk/forum/index.php?showtopic=11769
cacoseraph

i think i would like to get a chart to categorize the adult female size of the various mygs in CA/USA

something along the lines of:

<<1"DLS
<1"DLS
[1-2")DLS
[2-3")DLS
[3-4")DLS
[4-5"]DLS
(5"+ DLS
Bastian Drolshagen

hi,
besides Microhexura sp. (Dipluridae) Mecicobothriidae (Hexura, Megahexura) are pretty tiny.
Another Dipluridae, which I keep, is Euagrus chisoseus (can be mixed up easily with Euagrus comstocki) from Texas gets about 1cm BL and are really cute and interesting spiders.
cacoseraph

nice

we have Megahexura fulva around here Very Happy
Bastian Drolshagen

*wanthave*

Would be great if you could provide some photos of this species (and/or habitat photos aswell).. Mecicobothriidae is another family Iīm really interested in, but never saw before (only drawings)
cacoseraph

i definitely noticed a scarcity of pictures when i am making my Species of Interest "resports"

oh hang on... i think i did find a pic, but it was a red X when i was at work. let me check


http://www.bio.sdsu.edu/pub/spiders/AtypDec2007/index.html
http://www.bio.sdsu.edu/pub/spiders/AtypDec2007/Pages/17.html

should be M. fulva, iirc
Bastian Drolshagen

thx, but thereīs no pciture Sad
cacoseraph

rats

i will look at the source and see if i can't figure something out

none of the images seem to work. i am goign to try to find a webmeister to email


heh, i used my work email so i look more official Smile
Bastian Drolshagen

hi,
cacoseraph wrote:

heh, i used my work email so i look more official Smile


HRHRHR Wink
Celeste

I know this is a little off topic, but Andrew's post made me think of it:  do we have a scabies online guide to So Cal native inverts?  If not, can we start one?

-- C
WBurke17

Celeste, I was working on something like that, it was going to be like a check off type of list linked w/ pics,  but then i found a site with most of what i wanted/needed. i have the link saved to my work comp. so i'll list it tomorrow....W
Bastian Drolshagen

hi,
yesterday I exported my google earth data on the distribution of Dipluridae (worldwide - data taken from descriptions and revisions) and transfered it into google maps. Now Iīve got an interactive map on my homepage Wink
I think something like this would be recommended (in combination with a database).
cacoseraph

well, we have the Biota Crossreference

http://scabies.myfreeforum.org/about282.html


in it, all the big game bugs we have found are broken down by taxo... and any cites we have found them at are listed
Bastian Drolshagen

hi,
yeehh..that would be your database then (is it possible to search within a single thread?).
It becomes interesting when you put down those datasets in a map in order to see macrohabitat preferences of certain families or genera Wink
cacoseraph

oh yeah, i have the beginnings of the BC on my computer ina  google earth file... but that computer's power supply and CPU burned out (and probably motherboard) so i need to start over again
Bastian Drolshagen

ouhh thatīs bad Sad
Tried data recovery program?
I know how much work such a file is...
If you want you can use my file (on dipluridae)

Click to download file
cacoseraph

i haven't even powerd the hdd back up.  it wasn't too much data on the google earth thing.  lots of bug pics and movies that i don't have any copies of, though.  i expect i should be able to datagrab somehow, be it with a unix/linux machine with my hdd set up as slave or with a PC and a recovery program (provided it doesn't just give up the data as it should)

i learned a valuable lesson about always backing data up though!
cacoseraph

cacoseraph wrote:
i definitely noticed a scarcity of pictures when i am making my Species of Interest "resports"

oh hang on... i think i did find a pic, but it was a red X when i was at work. let me check


http://www.bio.sdsu.edu/pub/spiders/AtypDec2007/index.html
http://www.bio.sdsu.edu/pub/spiders/AtypDec2007/Pages/17.html

should be M. fulva, iirc



THEY LIVE AGAAAAIIIINN!!!!!!

dude was really nice, too
Bastian Drolshagen

GR8 Very Happy
BUT: I donīt see the transverse fovea being typical for Mecicobothriidae  Question
cacoseraph

i can barely see any fovea at all, bad angle. plus i haven't spent a lot of time developing my eye for fovea yet Sad
cacoseraph

Hexurella rupicola makes lenticular egg cases that are 1.5-2mm across and contain 4-7 eggs!

i think this might be one of the smallest mygs in the united states Very Happy

adult female total bodylenth, including chelicerae is 4.5mm!!!!!!
this spider probably has a DLS of under 1cm!!!!



Megahexura fulva total bodylength of mature female (including chelicerae) is 18mm. carapace is 5.6mm long and 4.7mm wide
(in Claremont, Glendora, Los Angeles, Murietta, Idylwild, and many many more places! Very Happy )




both of these species can be found in Murietta, CA! anyone up for a trip?!


http://digitallibrary.amnh.org/dspace/bitstream/2246/5425/1/N2687.pdf

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