Spiders and Insects: And More New Learnings

After today’s snow ended and another inch or two had accumulated atop our already winter wonderland world, I donned my boots and cameras and headed out the back door, not really sure where I’d wander. I assumed my findings would be few because the precipitation had just stopped.

Except that is, for the snow pack growing deeper!

But . . . I was almost immediately pleasantly surprised, for there was a Winter Crane Fly, small in size with gangly legs looking rather like an oversized mosquito. As an adult, however, it doesn’t have mouth parts, for its only plan is to mate. And it only lives for a short period of time, maybe a week or two.

Why then, do all of this in the winter? Today’s temp was 21˚F, and the touch of snow even colder–I know this because I felt it several times as I placed my rulered card down for photo calls. Perhaps because there aren’t many predators at this time of year?

What I couldn’t help but notice was the stained-glass window look of its two wings, for this is one of the True Flies (Diptera–two wings), and my mind returned to Reverend Annette’s sermon about hope and joy at St. Peter’s Episcopal Church this morning and my brain and heart were smiling at this find and joy filled my whole being. We don’t have stained-glass windows in our church, but rather they offer a look at the ever-changing natural world beyond the building’s walls. A world that includes this incredible creature that has been on Earth for a time longer than my brain can comprehend.

And then the spiders began to appear, Long-jawed Orbweavers and a few others, and each and every one was on the move.

What I have learned over the past week or two is that those spiders who do venture across the snow will curl up and rest on the really frigid days, and come back to life when it warms up a wee bit. Amazing.

Well, a short clarification, for some will revive, but others truly will freeze–probably due to -14˚F mornings. I know this because I took a “dead” one home on a “warmer” day and was surprised to discover it moving the next day, but three others that I found curled up after that really cold night did not come back to life.

I did try to count the spiders today, but couldn’t keep track, so many did I spot. My journey wasn’t far, but their journey . . .

slow, with each step . . .

seeming to be intentionally chosen.

And then I began to see other friends, like this female Snow Fly, also a member of the Crane Fly Family.

Along my chosen path, I found at least a half dozen females and only one male.

Her movements were a bit faster than that of the spiders.

What amazed me was this particular Snow Fly, for it had self-amputated not one, but two legs and it’s only December.

My hope for her is that she’ll find a mate sooner rather than later because I fear if the weather we’ve been experiencing (it feels like an old-fashioned December) continues for much longer, she won’t have any legs left. Despite her loss of limbs, she still moved rather efficiently as she scurried across the snow.

And then . . . and then . . . I met another surprising member of the winter landscape. Again, a teeny, tiny member, but because I was looking down, its coloration and shape were anomalies that captured my attention and for a few minutes became my whole world.

What a dress indeed did this Acleris Braunana Leafroller Moth wear–take a look at the pattern, and those colors, and the fringe.

As I learned when I returned home, it’s not unusual for this species also to make an appearance on a “warm” winter day. Like the other insects and spiders, Glycerol, that natural anti-freeze compound that lowers the temperature at which their tissues will freeze, plays an important role for winter survival.  

Of those critters that I filmed moving this afternoon, the Leafroller was the slowest, but I didn’t film the Winter Crane Fly because though those I saw were alive, they barely moved.

As my journey drew to a close, I was smiling both inside and out, for one reason, because I feel like I come alive when it’s cold out, and two, because I had so many surprises and learnings just because I was looking.

Looking down, that is. Can you imagine all that I missed by not looking up?

There’s so much to see, even in the “drab” winter landscape and my hope for you is that you’ll find joy in making new discoveries and learning along the way.

Giving Thanks for the Pileated Woodpecker

While most critters in the woods make their presence known only by signs left behind, there is at least one who is bold and loud and ever present in my neck of the woods. It often begins the day with a salute of drumming on a hollow snag to mark its territory just after the sun rises, and then I hear it or see it fly about our yard and woods and across the field beyond the stonewall throughout the day.

Every once in a while it honors me with a chance for a closer look. And so this afternoon, as I headed off into the woods to snip some twigs for an upcoming class that I’m teaching, I noticed some evidence that my friend had been present in the recent past.

It was the wood chips on the snow that served as his calling card. Well, his first card that is. By these, I knew he’d been chiseling the tree above, but always, when I spot this behavior I look for a second sign. And came up empty-handed. No scat.

While I was looking, however, I began to realize I could hear a familiar tap, tap, tapping from another tree.

And so I looked around, expecting to find one of his cousins, for the taps, though consistent, were not as loud as the drumming he uses to advertise his territory or announce his availability to a potential mate, but rather featured a softer rhythm.

Much to my delight, there he was, high up in a White Pine.

I was sure we wouldn’t get to spend too much time together, and so I wanted to focus on him as best I could. And that’s when I noticed the bark had been sloughed off the tree. My friend was hunting for bark beetles.

I decided to take my chances and move a few steps in order to get a clear picture, and still he stayed, though I thought our time might be over when he looked away from the tree.

Thankfully it wasn’t. Do you see all of the tunnels the beetles had carved where the bark had once been?

Oh, and how do I know it was a male? By the red mustache on his cheek. His lady does not have such a marking.

He turned back toward his work and I loved how it was obvious that his tail feathers formed the third leg of a tripod to provide support against the tree. When you have a head-banging job such as his, and only two legs, that third is important.

Eventually I pulled myself away and continued on my quest to locate certain tree species and snip just enough twig samples for each pair of students. Along the way, however, there were other things to notice like this recently deposited Bobcat scat offering a classic look at its hair-filled contents and sectioned presentation.

There are a million tracks in the woods right now since everything has been on the move following the last snowstorm, and the Foxes and Coyotes and Bobcats have been in dating mode, so it was no surprise to find Bobcat prints on top of other prints left behind.

Besides all the mammal tracks, I found lots of evidence of Ruffed Grouse walking about as well. They always remind me of my friend ArGee, whom I met in 2018, and wrote about several times, including this post Nothing to Grouse About. I may never get to have the experience of spending some quality time with a Grouse again, but seeing the tracks of one so clearly defined always makes me smile.

Another who has become a constant companion this winter is the Winter Crane Fly. Like all Crane Flies, he’s not a mosquito, though he looks like an oversized one. Crane Flies have no mouth parts, therefore, they can’t seek your blood. It’s only job is to find a mate and breed.

They are called Crane Flies because of their long legs and beaks that long ago were thought to resemble a Sandhill or Whooping Crane.

So why fly in winter? Perhaps because your predators are few. And your chances of mating without being eaten better.

Sticking with the Crane Fly theme, in my recent post Mammal Tracking: It’s all about paying attention, I shared a photo of this fly, a Snow Fly.

Snow Flies have six legs, but if you look carefully, you’ll notice this one only had five. As for that missing leg, Snow Flies self-amputate so that ice doesn’t enter body. It’s a fighting chance to survive the frigid winter and this photo was taking on a very cold day. An incredible adaptation.

Fast forward to today, which felt almost like summer (in the 30˚s), and I spotted another, this one with all six legs still intact.

And those two yellowish bumps on its thorax? Halteres, or small club-shaped organs, that help provide information for wing-steering muscles of True Flies (Diptera). From The Snow Fly Project, I’ve learned that “Snow flies are distinctive in their appearance, with long, spindly legs. They lack wings but do possess halteres. It has been suggested that their lack of wings might have evolved due to exposure to cold temperatures and wind (Hackman, 1964; Byers, 1983; Novak et al., 2007).”

Eventually it was time to return to our woods where I noticed more works by my friend.

Below this tree, there was even more debris and by the number of holes, it was obvious that this was a much more bountiful tree than the first one that stopped me in my tracks. That is, if you are seeking insects.

And so, I had to bend down and take a closer look. It’s like a treasure hunt at the base of a tree and let’s me know if the bird was successful in dining or not.

And I was well rewarded. All kinds of scat packages sat upon the wood chips and I knew that while the woodpecker found plenty of Carpenter Ants in the tree trunk, it had also recently dined on Bittersweet berries. As for the berries, well, um, Bittersweet does grow locally.

There was even some scat dripping off the tree! My heart be still.

As for Mr. Pileated, he’d moved on for the moment, but just before we’d parted ways earlier, he offered me a quick opportunity to spot his tongue between the upper and lower beak. Pileated Woodpeckers have sticky tongues, which they probe into the tunnels the delicious (to a woodpecker, that is) ants and other insects have created.

On this day, like so many others, I want to express my appreciation for the Pileated Woodpecker’s part in this world, for creating nesting sites that others, such as small songbirds, may use, and how he helps the trees in the forest by contributing to their decomposition, for as much as some think that these woodpeckers and their kin are killing the trees, the trees are already dying due to insect infestations, and the birds’ work will eventually help the trees fall to the ground, add nutrients to replace what they had used, and provide a nursery upon which other trees may grown.

Thank you, Pileated Woodpecker, and Bobcat, and Winter Crane Fly and Snow Fly. So many to honor.