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BugGuide Gathering
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July 10-12, 2009
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Home » Guide » Arthropods (Arthropoda) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynes » Cobweb Spiders (Theridiidae) » Theridion » Theridion frondeum
Photo#307086
Adult Female with Egg Sac - Theridion frondeum - female
Copyright © 2009 John Sloan

Adult Female with Egg Sac - Theridion frondeum - Female
Whitecourt, Alberta, Canada
July 19, 2009
Size: BL = 4mm
She laid eggs over night, constructing a web and egg sac at the mouth of a small specimen vial I had her in.

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Adult Female - Theridion frondeum - female Adult Female - Theridion frondeum - female Adult Female with Egg Sac - Theridion frondeum - female Adult Female with Egg Sac - Theridion frondeum - female Adult Female with Egg Sac - Theridion frondeum - female Epigyne - Theridion frondeum - female
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Contributed by John Sloan on 20 July, 2009 - 1:02am
Last updated 3 August, 2009 - 12:04am

Moved
Moved from Theridion.
… John Sloan, 2 August, 2009 - 11:57pm login or register to post comments

Hmmm, I was thinking that per
Hmmm, I was thinking that perhaps it's an Enoplognatha species. What about plain ol' Enoplognatha ovata?

Well, interesting black spots or not, I'm giving up for now and will wait until you've looked at the epigyne.

-K
… Kevin Pfeiffer, 20 July, 2009 - 2:25pm login or register to post comments

 
I tried that
I tried that, but Enoplognatha has a large colulus; this spider doesn't have one at all. It definitely keys out to Theridion.
… John Sloan, 20 July, 2009 - 3:27pm login or register to post comments

Hi, John- Any ideas as to
Hi, John-

Any ideas as to possible species? I don't really know the "pale" theridiids that well.

-K
… Kevin Pfeiffer, 20 July, 2009 - 9:17am login or register to post comments

 
Not so far
I haven't found anything like it yet. Those black spots on either side of the spinnerets might help. They certainly stand out. Now that it has laid eggs and the abdomen has returned to normal size, its yellow coloration is easier to see. I've put up two more pictures taken without flash that, I believe, show the true colors.
… John Sloan, 20 July, 2009 - 10:00am login or register to post comments

 
> Those black spots on either
> Those black spots on either side of the spinnerets might help.

Ah! I hadn't noticed those. Perhaps Levy mentions something like that (somehow they seem to ring a bell).

-K
… Kevin Pfeiffer, 20 July, 2009 - 10:56am login or register to post comments

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