Well-Nigh Wordless Wednesday: Fireflies on the Prairie

I grew up in a place that didn’t have fireflies that lit up at night, but I have loved them as long as I can remember.  I was thrilled, absolutely thrilled, when I saw a firefly a few nights after I moved to Raleigh!  Finally, I lived in a place that has them and seeing them will no longer be a lovely benefit of visiting my relatives in the Midwest, but something I can indulge in every summer.  I rarely see hoards of them anywhere, just a few little flashes here and there, but then I did a firefly outreach program at work on Saturday evening.  There were hundreds out!  They were flying over the prairie, lighting up little patches of grass every few seconds and it was absolutely magical.  So, I packed up my camera and went back the next evening to try to get a shot that captured the wonder of that spectacle.  It was raining and my camera has some serious grain issues when I try to photograph things in low light, so I never did get the crisp photo I had hoped to get.  This was the best I could manage:

Fireflies

Fireflies

Still, every one of those yellow-green lights is a firefly, and those represent about a third of the fireflies flying over that one patch of prairie.  That patch was about 1/10th of the total area I could see, so multiply what you see here by about 30 in your mind for the full effect!  It was amazing.  One of the best nature moments of my life, truly and utterly beautiful.

In other news, I am seriously upgrading my camera gear!  As of tomorrow, I will have two new camera bodies (a Nikon AND a Canon this time) and a new lens (Canon MP-E 65!!!), so prepare to be inundated by bug photos as I play around with my new toys over the next few weeks.  Maybe I’ll even try the firefly photo again with the new gear and see if I can improve on the photo above!

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Unless otherwise stated, all text, images, and video are copyright © C. L. Goforth

Friday 5, coming soon!

I hate to do it, but I have to postpone Friday 5 until tomorrow.  Sleep…  It’s a good thing!  Especially when you’re looking at a 13 hour work day on Saturday.  So, I’m headed off to sleep for now and will resume working on my post tomorrow.  I leave you with this photo, a taste of what’s to come:

Crane Fly on Holly

Crane fly on holly

Until tomorrow then!

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Unless otherwise stated, all text, images, and video are copyright © C. L. Goforth

Well-Nigh Wordless Wednesday: The Impossible

Check out this photo I snapped with my phone recently:

Blue corporal

Blue corporal

We had a fancy picnic at work and offered activities for the attendees to keep them occupied until they ate.  After I arrived back from the pond, a child ran up to me with a plastic bug jar and asked if I could tell him what was inside.  It was this dragonfly.  The kid kept saying, “It’s alive!  It’s alive!” but you would have been hard pressed to tell that it was, in fact, alive as it sat there perfectly motionless, lying at an odd, not-terribly-alive angle.  I realized why he was so still when the kid picked up the jar and shook the heck out of it, rattling the dragonfly around inside!  Horrified, I convinced the child to focus his attention on an identification book and once he discovered that it was a blue corporal, he dumped it out on the ground and ran inside for dinner.  I couldn’t resist taking a photo of something I never thought possible – a live dragonfly that let me pick it up – as I moved the poor little guy out of harm’s way.  I ran to get a better camera, but by the time I got back he was gone.  I hope he has a good life out there.  He deserves it after the trashing he got!

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Unless otherwise stated, all text, images, and video are copyright © C. L. Goforth

Dragonfly Emergence

A few weekends ago, I was leading a ladybug hunt at work and took everyone into the garden to see if we could find anything different.  The kids eventually wandered over to the garden pond, pulled in by whatever irresistible lure that pond holds for people under the age of 12, and peered in.  The boy quickly called me over to look at something and pointed to the leaf.  This is what he saw:

Carolina saddlebags emerging

Carolina saddlebags emerging

Dragonfly emergence!  As much time as I spend around water and as much time as I spend watching dragonflies, I’ve never had a camera with me when I’ve seen dragonflies emerging.  I was thrilled!  I snapped a few shots before we looked at other plants in the pond.  There were a half-dozen dragonflies dragging their soft, squishy bodies out of their last exoskeletons as nymphs and preparing to join the world above the water.  I finished the program, but as soon as the ladybug hunters left, I went right back to the pond to look for more dragonflies.  Over the course of the day, I spent about 2 hours watching the dragonflies emerging and snapping photos of a dozen dragonflies that transformed from nymph to adult.  It was magical!  I naturally couldn’t wait to share some photos with you all.

Transforming from a nymph to an adult as a dragonfly is not as complex as it the more familiar transformation from a larva to a butterfly.  Dragonflies undergo what is called incomplete, or hemimetabolous, metamorphosis, so they move from egg to nymph to adult with no pupal stage.  Even though most of the kids I work with will never see it, dragonfly nymphs actually look quite a bit like the adults.  Butterflies have to rearrange all their caterpillar tissues into butterfly tissues while dragonflies simply lose a mouthpart, gain a pair of wings, and fly away.  Still, there are all sorts of horrible things that can go wrong.  I saw one dragonfly get blown off its perch as it was pulling the last of its abdomen free from the exoskeleton, only to be blown into the water.  I tried to rescue her, but she eventually died.  Another dragonfly couldn’t free itself from its exoskeleton at all and remained stuck inside until it died.  But, 10 of the 12 dragonflies I observed emerged with no problems.  Here’s how it works.

First, the dragonfly nymph must crawl out of the water.  This appears to be a rather laborious process as the adult dragonfly is just about to burst out of an exoskeleton that is much too small and the nymph practically drags its body up and out of the water:

Eastern pondhawk nymph

Eastern pondhawk nymph

That particular dragonfly took a good 20 minutes to get 10 inches up the stem before wrapping her legs around it and starting to puff herself up.  Eventually, the dragonfly breaks the exoskeleton open along the thorax and begins to spill out of the hole.  The head is extracted first:

Stuck dragonfly

Stuck dragonfly

You know how I mentioned that dragonfly that got stuck in its exoskeleton?  This is as far as that one got.  It still looked like this when I left work 6 hours later.  Assuming all goes well, however, the dragonfly begins to pull its body out of the nymphal exoskeleton.  I saw two different methods of this.  This blue dasher female freed her legs, then used them to grasp the stem and pull the rest of her body out:

Blue dasher emerging

Blue dasher emerging

The female eastern pondhawk, however, started bending her body over backwards, using gravity to help pull her head and thorax down to extract her abdomen:

Eastern pondhawk emerging

Eastern pondhawk emerging

Both dragonflies eventually rested on the plant for a while, pumping hemolymph into their wings to extend them fully.  The blue dasher sat above her exoskeleton:

Blue dasher emerging

Blue dasher emerging

…while the eastern pondhawk rested below hers:

Eastern pondhawk emerging

Eastern pondhawk emerging

The pondhawk was too close to the water to extend her wings fully, however, so she eventually moved up the stem so that she could finish her wing development and stretch them all the way out:

Eastern pondhawk emerging

Eastern pondhawk emerging

I know I’ve mentioned it several times in the past, but insects shed all of their exoskeleton when they molt, which includes the exoskeleton-lined respiratory system.  Those little white strings hanging out of that shed exoskeleton is the shed respiratory system.  I never get tired of marveling at just how amazing it is that insects replace whole systems when they molt, both internally and externally!

eventually, both the blue dasher and the eastern pondhawk had dried their wings sufficiently to move them out to their sides, holding them in the manner characteristic of dragonflies:

Blue dasher emerging

Blue dasher emerging

At this point, the dragonflies began to harden, their bodies darkening in color until they approached their final color.  The blue dasher female was a dusky black:

Blue dasher ready to fly

Blue dasher ready to fly

The eastern pondhawk became an even more vivid green and her black markings became dark and vibrant:

Eastern pondhawk ready to fly

Eastern pondhawk ready to fly

The whole process took about three hours for each species.  Eventually, the 10 successfully molted new adults all flew off, ready to spend their short lives on land and leaving their old lives behind:

Carolina saddlebag exoskeleton

Carolina saddlebag exoskeleton

What an amazing process!  If I had to spend a Saturday at work (and a very long Saturday at work at that), these sorts of things make it completely worth it.  I was thrilled I got to see all these dragonflies emerging.  Every time I go into the garden now, I am drawn immediately to the pond.  Will there be more dragonflies emerging?  So far I haven’t seen another, but it’s only a matter of time.

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Unless otherwise stated, all text, images, and video are copyright © C. L. Goforth