Sorry for the poor quality of the photos, but my camera isn't the best and neither was the lighting.
Brought in the plants for the winter a few weeks back and put them in a room that's under renovation until next spring when they go back out. Must've brought in more than I bargained for. Yesterday morning, noticed a LARGE web covering the cane yuccas. Don't know how long it's been there because we don't go into that corner of the room very often. The plants are about 7 feet tall. Sparse sheet web covering the largest of the cane yuccas with a barely discernible funnel leading down to a cocoon wrapped in a yucca leaf. I say "sparse" sheet web because we have many (many!) funnel web spiders about and usually the sheets are so dense that they're opaque. This was more ... stringy. Even after spritzing with water, these are the best photos I could get. And the web stretched across half the room. The anchor "strings" went from the top of a bookcase (almost 9 feet from the funnel) to the end of a couch (a little over 6 feet from the funnel) to the back corner of a table (about 4 feet from the funnel). The sheet web covered the area in between these anchors as it flowed over the plants.
Until now, I presumed it was a funnel web (grass) spider web and egg sac. But everything I've read since says that they hatch in spring. And that egg sac I just found yesterday? Spiderlings all over. I removed the leaf and put it outside, FAR from the house. And took a broom to the web. But the spiderlings are already EVERYwhere. Makes me itch just thinking about it. They're too small to get a good image, but they're dark on the head and butt with a lighter stripe in between. Kind of like a brown Oreo from Hell.
I never saw Mom. And would be happy if I never did.
So, what are these things? What hatches in November? I'm OK with the babies being around (I'm no fan, but I know they're beneficial creatures). As long as they're harmless grass spiders and not something more ominous.
Super Large Web with Spiderlings in Virginia
i think it's kind of cool...the web and all. i know that they are NOT Black or Brown Widows because they have a distinctive round, ball type egg case. i feel sure you're safe from harm. someone else will chime in with more info.
The lumpy, linear object in he lower center of the third image reminds me of a trash-line orb weaver (see http://www.abundantnature.com/2011/10/trashline-orb-weaver-cool-spider.html), but the rest of the web is atypical for that spider...
trackinsand: thanks for the reassurance. We have many (many!) black widows in the yard and garage. I'm glad to know it's not one of those!
Flapdoodle: I included that image specifically for that (out-of-focus, I know) feature. There was another one of those in the upper left of the same image. We have lots of very large orb weavers around, although I didn't see any this year. Their webs are truly works of art. Although I could do without walking into them first thing in the morning when leaving by the front door. I haven't noticed that particular variety - the ones I've seen have a smooth abdomen. I'll have to keep a lookout next spring.
(Actually had a big orb weaver start a web between the utility lines and the ground a few years back. I was mowing the grass and saw her running the first circuits. A few swipes later I'd forgotten to avoid the area and drove right into it. Believe me, I provided lots of entertainment for the neighbors when THAT happened.)
And you're right about the rest of the web being way off from the norm for an orb weaver. But, now that I think about it ... the babies did have the shape of adult orbs weavers ....
Follow-up question: do spiderlings keep the same body shape after they mature? Because these babies seem to have a very distinct rounded abdomen (like an orb or widow), not an elongated abdomen (like the funnel web or wolf).
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