Posts Tagged Writing Spider
Astronomically speaking, autumn begins with the vernal equinox, which will occur on September 22. However in my yard, autumn’s influence is showing more every day. But at the same time, summer has not surrendered, thanks to frequent August rains and high temperatures that have not ventured near the record heat wave that plagued us during much of July.
In the last few days, our first round of autumn air has chilled our mornings, leaving heavy dew on grass, leaves, and garden benches, and bright blue, humidity-free skies that beckon birds to start thinking about their southerly migrations.
The late-summer rains have confused some of my plants — like the Florida Anise-tree in the opening photo. While still ripening the abundant fruits it produced from its spring flowers, it has put out quite a respectable second flush of new flowers. All the trees — red- and white-bloomers are doing this to some extent.
The annual flowers in my vegetable garden are also reinvigorated, looking nearly as lush as they did in June — quite unusual in recent summers.
But most plants are well into seed-production mode. My pecan trees this year set abundant fruit, but I suspect the July heat wave damaged them. Instead of being harvested and devoured by squirrels, most of the nuts have fallen to the ground. A few look as if the squirrels tasted and rejected them.
Only a few nuts still remain on the trees, apparently more successful in maturing to full ripeness, as these two here:
The bronze fennel I grow in the vegetable garden as food for Black Swallowtail caterpillars were not visited by those butterfly larvae this year. Instead, they bloomed prolifically, and now their seeds have ripened in abundance. I predict a bumper crop of fennel volunteers in my garden next spring.
Fruit set on the native trees is abundant. Pileated woodpeckers are arguing daily over dogwood (Cornus florida) berries, which turn scarlet well before their leaves.
The long, mild spring helped the Sweet Bay Magnolia (Magnolia virginiana) produce an abundance of fruit-filled, squat cones:
Local wildlife seems to be working overtime as winter’s cold looms closer. Last week, I had noticed that a few tadpoles were still lingering in my little water feature. This morning, when the thermometer on our hill read 49.3 degrees Fahrenheit, a new froglet emerged and settled on a dew-covered leaf. These little ones never photograph well for me, but I think perhaps it’s another Cope’s Gray Treefrog. I hope so.
Two hours later, one of the Green Frogs that’s been living in the water feature all summer emerged seeking sun. These frogs have more than doubled in size since they first arrived after a rainy night.
The insects and arachnids seem to go into a near frenzy of activity this time of year, perhaps trying to squeeze in one more generation of themselves before winter’s cold shuts down production. Two days ago, I was surprised to see a male Carolina Mantis on the wall beside my front door. I know he was a male, because he was so skinny that I at first thought I was looking at a very large Walking Stick insect. Then he turned his characteristic triangular head in my direction, and I realized my mistake.
I haven’t seen a Carolina Mantis in my yard in maybe ten years. The Chinese Mantises were all I saw, and even they have been sparse this year, I think due to a lizard population explosion in my front garden.
I suspect this fellow was looking for a mate, and I hope he found one. I’m all for helping our native mantises thrive. Click on the photo below to enlarge it enough to see that he was staring at me.
The Black and Yellow Garden Spiders (Writing Spiders) are disappearing one by one. I think they are laying their egg cases, then fading into oblivion. Two large ones remain in my front garden. This beauty resides in my lantana hedge, where she grows fat on unwary butterflies and moths. Check out the design on her back:
Another one lives beside my little water feature. This morning, she was waiting patiently for breakfast:
The other Garden Spiders that once resided in the plants that sit within my water feature have all vanished. But one left behind a very large egg case. Before I carry the water plants inside my greenhouse for the winter, I’ll gently relocate this case to a spot in the garden where the hatchlings will be appreciated next spring.
Finally, two caterpillars crossed my path this morning. Caterpillars are everywhere right now. I know this by the frass (entomologist jargon for caterpillar poop) littering my deck below the oak tree, and by the myriad birds that hunt for them in the trees all day. I’ve been hearing the chipping call of a patrolling Summer Tanager nearby for several weeks.
This intimidating caterpillar was on my deck railing this morning.
Don’t touch those hairs. They will sting and give you a painful rash. This one likely fell from the oak tree above where I found it.
This one and its siblings have been eating my native coral honeysuckle for a couple of weeks now.
Honeysuckle is one of this species’ favorite food groups, and my vine is huge, so I let them have their way. They don’t eat the flowers or fruits, merely stripping the vines of leaves in a few spots. Note the discarded skin on the branch behind it, left over from an earlier molting.
How do I know the identity of these caterpillars? I’m glad you asked. Everything I know about caterpillars I learned from my go-to reference — Caterpillars of Eastern North America by David L. Wagner. Dr. Wagner’s book is full of excellent photos and all the information you need to know about what the caterpillars eat and what they’ll turn into. I highly recommend this book.
That’s just a sample of what’s going on right now on my patch of North Carolina piedmont. I’ll fill you in on some other highlights in another post soon. Meanwhile, get out there and enjoy that autumn air while it lasts. Word from the weather seers is that heat and humidity will be returning within 48 hours. But not for long — we hope!
In the last two weeks, a new species of frog has been hanging out on the edge of our little front yard water feature. Yesterday, two were sitting on opposite sides of the pond. Both are about three inches long, and this zoomed-in photo I took makes me think they are Northern Cricket Frogs.
This species is common in my wetland, but I’ve never seen them sitting on the edge of my little front pond before this year. I think perhaps they were born in the pond and recently emerged. They’re probably waiting for a rain event to disperse to less exposed areas. I was surprised by the lumpy texture on such petite amphibians.
A couple of new butterfly species have flitted through in the last couple of weeks. They didn’t stay long in one place, so my pictures are not optimal. But I think I have identified them correctly.
I almost walked into this Monarch butterfly as it was sipping from my row of lantanas. Of course, it flew away before I could take its picture. It then briefly landed on the Chinese Abelia, which is where I managed to snap a very quick shot before it dashed off. I haven’t seen one since then. My Swamp Milkweed didn’t fare well this year. The July heat wave and drought made it surrender without blooming. I’m hoping to add at least one more species of milkweed to another area — a species that’s more heat- and drought-tolerant.
Another brief visitor to the vegetable garden was this battered specimen:
A few of this species have visited my yard off and on throughout the summer. This one stopped to sip from a bean flower just long enough for me to snap its photo. I think it’s a Great Spangled Fritillary, but I confess the fritillaries look very much alike to me. I’m mostly basing my guess on my location.
The most interesting recent faunal encounter was a love story, well, perhaps more of a lust story. I spotted a male Writing Spider dancing at the edge of a female’s web. I saw him there two days in a row before he vanished. My research tells me that if he successfully courted the female, he either died soon after or was devoured by his lover.
The plants have been busy too. Most are finalizing fruit production. The native spicebushes (Lindera benzoin) set an unusually large number of gorgeous red berries this year. I think the fruit-loving birds will be pleased when they notice, if they haven’t already.
As is always the case, the branches of my Two-winged Silverbell (Halesia diptera) are adorned by zillions of the large “two-winged” fruits from which its common name arises. When they are fully ripe, they turn brown, and soon after, squirrels devour every fruit.
Flowers still abound also. I’ve come to expect Jewelweed’s (Impatiens capensis) arrival in late summer/early fall. Sure enough, it’s popping up in abundance right on schedule. Especially dense thickets line our side of the creek. In deep drought years, the water-rich stems of this wildflower are irresistible to thirsty deer. This year, we either have fewer deer, or they’re not as thirsty, because the Jewelweed is blooming enthusiastically from one end of the floodplain to the other.
One recent bout of flowering was a surprise. My two white-blooming Florida Anise-trees (Illicium floridanum ‘Alba’) reside beneath dense shade that protects them from western and southern sunshine. I think that location, combined with off-and-on measurable rainfall for most of August, triggered a second round of blooming in these evergreen shrubs. Interestingly, I planted one of their red-blooming cousins (Halley’s Comet) in the same location, but it did not rebloom.
Sometimes when you see a second round of blooms from a shrub in the fall, its spring blooms are less impressive, because the plant spent much of its energy on autumn flowers. It will be interesting to observe how many flowers my albas produce next spring. For now, we are enjoying the unexpected bonus of glowing white star-like flowers against deep green leaves.
As I observe my landscape transitioning from summer to fall, my prayers go out to the folks enduring a visit from what was Hurricane Isaac until quite recently. Hurricane Fran was the beast folks in my region still talk about; forests still show clear signs of the damage caused by her winds and water. Mother Nature is indeed capricious, simultaneously bestowing unexpected flowers and unforeseen chaos in different parts of our country.
Here’s hoping Isaac is the last hurricane to make landfall in the United States this year.
My five-acre patch of Piedmont is positively bustling with animal life these days. Perhaps the creatures have noticed the sun’s later risings and settings, and have begun their preparations for winter. Whatever their reasons, every day we seem to stumble upon an interesting resident or visitor.
Wonder Spouse spotted this Common Buckeye nectaring on the abundant blooms still perfuming the yard. We see them off and on throughout the growing season, but it had been a while since we’d seen one. Here’s what it looked like with its wings folded:
Earlier that same day, I spotted a Red Admiral hanging around the front flowerbeds:
Here’s another angle:
I’ve been spotting a small anole hunting in the pineapple sage and lantanas for about a month now. It is only about three inches long, and I suspect it may be the result of an encounter I documented here. But it is too small and too shy for me to catch with my camera. However, the same day that I saw the Red Admiral, I also spotted a large, Green Anole climbing in the warm sun on the south side of my house. I saw no evidence of a throat patch, so it might have been a large female, but I’m not sure. See for yourself:
She was reasonably patient with me, but eventually turned to face me, as if to say, “Enough already!”
The Writing Spiders continue to flourish. Some are growing faster than others. I call this one Big Bertha, because she is by far the largest:
Wonder Spouse continues to document some of the numerous dragonflies currently patrolling our gardens, like this one:
This one was posing on some Coneflower seed heads:
The creepiest photo Wonder Spouse took that day was this fly. I don’t know its species, but I do know it is big, mean, and aggressive. This fly and its kin are the reason we do not wear shorts in our yard. The bites of these monsters hurt for weeks.
Today is has rained much of the day, so we didn’t expect to see as many critters going about their business as we usually do. Imagine my astonishment this morning when I looked out my window onto the floodplain and spotted two dark shapes. I soon realized they were too small to be deer. When I decided they were birds, my first thought was vultures, because we have a group that sometimes hangs out around our creek. However, these birds were walking around in a very un-vulture-like manner. A thought occurred: “Could these be Wild Turkeys?”
They were walking in the mowed area at the far end of the floodplain, strutting about in the rain, one often chasing the other. Once we got the birding scope on them, we were able to confirm these were indeed Wild Turkeys. Over the years, we’ve seen a few not far from here, but never in our yard. As we watched, they gradually wandered closer to us, but never closer than the large Red Buckeye that grows near the creek. In fact, when the rain grew heavier, they both huddled beneath the thick canopy provided by that Red Buckeye. We could just make out their dark shapes through the driving rain.
When the rain let up, the Turkeys wandered back out into the grassy area, so Wonder Spouse grabbed his tripod and set up his camera — with telephoto lens — in front of the sliding glass door overlooking the floodplain. It was still raining too hard to take the camera outdoors, the light was dim, and the Turkeys never stayed in one place long enough for a decent shot. But these photos at least confirm a visit from two Wild Turkeys — females, we think.
Despite the off-and-on hard rain, the Turkeys wandered around the floodplain for about 45 minutes, until something caused them to dash out of sight for good. We thought we were done with visitors for the day, until we spotted what had caused the Turkeys to flee: a large Common Snapping Turtle! We don’t think she was after the Turkeys, but we don’t blame them for erring on the side of caution when dealing with this species of reptile.
When the rain paused for a bit, Wonder Spouse and I went out for a closer look at the Snapper slowly lumbering across the floodplain. We see Snappers and River Cooters every once in a while; they are always females in search of the soft sandbars they prefer for nesting sites.
Wonder Spouse was able to get a few close shots of what we think is an old female during a pause in the rain.
In this close-up, you can see what looks like green algae growing on the top of her head:
We didn’t bother her for long. A quick online search revealed that these turtles often come out to lay eggs in weather like today’s, probably because the ground is softer, I imagine. We have a healthy respect for the Snapping Turtles that share our property. We leave them to their business, and they don’t bite off our toes or fingers. Seems a fair deal to me.
I’ll be keeping watch for another visit by the Wild Turkeys. We found a Web site that included recordings of their various calls. When I listened to them, I realized I’ve been hearing these calls all summer. I think Wild Turkeys probably nested in the floodplain woodland across the creek from our property. I had been hearing bird calls I couldn’t identify, and had decided they must be a neighbors’ poultry. But now I realize that the Wild Turkeys have been talking in the adjacent woods all summer.
What a great day this has turned out to be. Not only did the plants get a much-appreciated dose of moisture, but the Snapping Turtles got a chance to multiply themselves, and a new bird species stopped by — in the pouring rain!
I count myself lucky to be gardening in the Piedmont region of North Carolina this year. Sure, it’s still hot, but the unrelenting 100+-degree temperatures have backed down to the unrelenting low 90s. And although most of the good thunderstorm rains are still bypassing my yard, the air is soupy, sticky with humidity. The dregs of summer are here.
Signs are clear in the vegetable garden too. All tomato varieties are losing lower leaves to climbing fungal attacks, yet still their tops soldier on, producing enough ripe fruits to share with friends. The peppers are ripening well, but fruit worms are boring into the nearly ripe fruits, ruining some completely, rendering others only partly edible. Such are the usual late summer consequences of gardening without toxic chemical weapons of mass destruction.
Although the few rain showers that deigned to stop at my house have not brought enough water to help my stagnant creek and pond, the drops that fell were sufficient to revive the flowers. The giant Chinese Abelia that resides beside my vegetable garden had almost stopped blooming — much earlier than in previous years. But the recent rains persuaded it to reopen for business; now clouds of swallowtails, other butterflies, day-flying sphinx moths, and myriad bees animate the bush with drifting flows of color from dawn to dusk.
The Seven-Son Flower Tree is equally popular with the pollinators. Heavy perfume from these small flowers hangs in sticky morning air, an invisible entity waiting to envelop unsuspecting passersby with fragrance.
Without question, butterfly and dragonfly populations are at all-time seasonal highs in my yard. The butterflies literally bump into me as I walk from my front door to the garden, so intent are they on finding the next tasty blossom. Dragonflies in metallic shades of blue, green, amber, and red zip through the skies, grabbing insects on the fly. When I try to photograph them, they seem to grow interested in me, following me short distances before returning to sky patrol.
Wonder Spouse was out in the yard yesterday trying to photograph a few of the sky dragons. Check out these shots.
A final sign of summer’s waning is the arrival — in abundance — of Writing Spiders. Last year, I showed you the large Black and Yellow Garden Spider that set up shop among the plants I grow in pots that sit within my front yard water feature. This year, instead of one large spider residing over this space, seven smaller Writing Spiders have overtaken this area. Perhaps they are the offspring of last year’s large spider, or perhaps word leaked out into the spider community that this locale was ideal for their purposes.
However they came to find this spot, it is quite wonderful to see seven webs strung between sedge leaves and cardinal flower stalks, the characteristic spider writing prominent in their centers, along with seven growing black and yellow weavers waiting for unwary prey to stumble into their sticky traps.
Here’s to the waning of summer stickiness, the rise of sky dragons and butterflies, and the hope that the perfume of late-blooming blossoms will soon summon autumn’s kiss.
In my previous post, I described a few changes in the local wildlife that serve as markers for the transition from Summer to Fall. I neglected to mention one of my favorite declarers of impending Autumn: Argiope aurantia, commonly called the Writing Spider or the Black and Yellow Garden Spider.
I began to notice some smaller specimens setting up shop among my tomato plants about a month ago. But this is the first sizable spider I’ve seen. She is probably not quite full grown, but she’s getting there. She erected her web among the tall blooming stalks of Cardinal Flowers that share space with Pitcher Plants in pots immersed in my front garden water feature.
It’s a perfect spot for a hungry spider. Unwary local pollinators drawn to the ruby throats of the Cardinal Flowers make easy prey for the quick reflexes of this predator. She is building up her reserves before creating her egg sac, which will protect hordes of tiny spiderlings until spring sunshine calls them forth.
I know this is a female because of her appearance, and the fact that males roam about in search of females; they don’t build webs. When they find a potential mate, they court her by plucking the strings of her web, sending vibrations through the gossamer threads that entice her toward him. After mating, the male usually dies, and the females eat their bodies. Unlike their Black Widow Spider sisters or female Praying Mantises, Writing Spider females do not actively kill their lovers; they merely don’t let a good meal go to waste.
Writing Spiders are so named for the squiggly zigzag of silk in the center of the web (a stabilimentum, technically speaking). Scientists have several theories about the purpose of this structure. Some think it attracts prey. Others think it makes the web more visible to those who might unintentionally walk through it. I know in my yard when I approach a Writing Spider’s web I haven’t seen, my first clue is usually when the occupant begins strongly vibrating the web, and the first thing I notice is usually that zigzagging bit of silk in the center. But just because it prevents me from walking through the web doesn’t mean that’s what her “writing” is there for.
Maybe the scientists haven’t yet stumbled upon the real reason for the Writing Spider’s silken signal. Perhaps she is conveying a message from Autumn, letting us know that the time for summer frolicking is nearly done. Leaf raking, pumpkin carving, and turkey stuffing will accompany crisper air, bluer skies, and the bedding down of flora and fauna for another winter’s sleep.