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Orb Weaver - Aculepeira packardi

Orb Weaver - Aculepeira packardi
8,500 feet elevation, Teller County, Colorado, USA
July 21, 2012
I found this orb weaver in tall green grass. I think I saw one like it in the guide but I'd like to be sure. There are three pictures altogether. I hope someone can help me positively identify this spider. Thank you.

Images of this individual: tag all
Orb Weaver - Aculepeira packardi Orb Weaver pic 3 - Aculepeira packardi Orb Weaver pic 2 - Aculepeira packardi

Moved to A. packardi
Moved from Aculepeira. From what I found it doesn't look anything like A. aculifera, so this is a safe bet.

A. packardi
Thanks, guys!

Moved to Aculepeira
Moved from ID Request. With the ventral view present (nice job) there is no doubt it's Aculepeira. All three described species occur in CO, so I'd like to review them before guessing further.

Thanks Lynette. I have the spider to compare in case the pictures didn't show enough. It sure eats a lot! I'll let it go really soon, just wanted a positive I.D. By the way, can anyone tell if it is a male or a female? How would I tell? If you need another pic, I'd need to know what part to take a picture of.

it's a female, probably mature, though the scape isn't clear enough to be certain. On the spider info page here it explains how to sex the spiders.

I can see the epigynum. I didn't now what it was. I had already noticed that the pedipalps are slender.
I'll let her go. She might want to mate if there's still time. I bet she'll attract a mate.

Might be -
a Western Spotted Orbweaver (Neoscona oaxacensis), although I'm not sure... For multiple images of the same bug or spider, please LINK them together - here are the instructions from our Help page:

"How can I submit multiple images of the same specimen?

Submit the first one just like any other image. Then view that image and you'll see an "add image" link. Click that and you'll see an image submission form prefilled with the information from your first image. That's just for convenience and you are free to change those details, if appropriate. Images submitted in this way are linked and viewing any one of them will include thumbnails for all of them".

I'll link these for you this time...

Could it be Aculepeira? I just looked at an article of some ventral images that I found here and it appears to have that bright straight line like Aculepeira or Metapeira seem to have. It does not have four spots or two "L" shapes. I am sure of that, in case it is not clear from the pics.

Could be -
Lynette and J&J Balaban are particularly good at recognizing these sorts of spiders from images - they may be able to tell you more about the ID.

I didn't know that's how you did that.

If it helps
The spider was found at 8,500 feet altitude.

Any location info. can help -
please put as much as you can in those sections of the image submission form - I've added this info. for you.

I'm pretty new around here.

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