“Hey Miss Dragonfly I see you look at me with your beautiful eyes You must be wondering what type of creature am I” ~ Dragonfly, by Ziggy Marley
As we move into March, I suddenly realize that in about 4-6 weeks I should start finding some green darners ! Last year I found my first of the year on April 18. This is the hardest time of year, when it’s so close and yet…so far. But since I’m dealing with major drywall damage from an ice dam, I need to redirect my attention to something positive, so let’s look at some beautiful dragonfly eyes tonight, shall we? Just a few pretties….
This post was inspired by the Ziggy Marley song referenced above. I’ll link it below the photos so you can enjoy it too.
See, I can do a short post if I try hard, LOL. Okay, here’s Ziggy’s song — enjoy!
Earlier this year I was asked by Metroparks Toledo to start a program to monitor the dragonflies and damselflies at one of our local parks. I wrote a little bit about it in this post at the beginning of the summer, but now I’m finishing up the first monitoring season and have some thoughts about the experience.
Just to quickly recap for those who don’t want to click back and read the earlier post, the park system has some concerns about what might be causing a perceived decline in odonata at Wiregrass Metropark. This property is basically a small lake with a half-mile walking trail circling the water, and it’s known as one of the best parks in Toledo for watching odes. (This is where I led the dragonfly walk for Toledo Naturalists Association in June.) But Metroparks wants to gather data to see if there really is a significant decline happening here, and if so, to take action to remediate any negative environmental factors that might be contributing to it.
So we divided the lake into quadrants and I was to visit once in every ten-day period through the summer to do a survey. I counted the numbers of each species that I found in each quadrant, and made note of weather conditions on each count day. I thought I was pretty familiar with this lake from my own visits there to photograph odes in the past couple years, but I have a different relationship with it after visiting so often and watching things change week by week.
As you know, I’m interested in all insects, not just odonata. And I pay attention to plants too, especially noting what’s native and what’s not. My plant knowledge is much more basic than my bug knowledge though. I’ve enjoyed watching not only the changes in insects through the season, but the changing landscape when different plants are in bloom.
Dragonflies don’t have any connections to specific plants in the way that butterflies and moths do. For example, moth and butterfly larvae (caterpillars) are restricted to feeding on specific plants or plant families, so their populations fluctuate with the presence or absence of their host plants. Odes don’t tend to perch on flower heads because they’re not pollinators, but I’m always hoping for those extra nice photo opportunities when they do.
Some things that could impact the populations of odes at this location could be water quality, or the quantity of emergent vegetation around the edges of the lake. Many species of dragonflies lay their eggs in plants that grow in the water, so that when the eggs hatch, the larvae will be able to drop down into the water. Dragonflies and damselflies live most of their lives as underwater insects before crawling out of the water and becoming adult winged insects.
The northern half of Wiregrass Lake’s shoreline is pretty heavily vegetated, with the only access being provided by several stone fishing platforms. The southern half is much more open, and Metroparks has placed signs prohibiting shore access on the southern end of the lake, in hopes of protecting the habitat there. This is where I see most of the odes on my surveys, but I can’t be sure if that’s due to the particulars of the habitat or just because it’s the most accessible portion. There could be just as many dragons flying on the north end, but I can’t see the lake up there, except for a few small openings.
Some species are most likely to be seen flying over the water, like the Common Green Darner, Black Saddlebags, and Prince Baskettail. Others are often found on the land, like many of the pennants and meadowhawks. It’s always easier to get photos of them when they’re perched, but sometimes I manage to get in-flight shots of the ones that rarely land. This Prince Baskettail is a species that I’ve never found perched, but since it flies a shoreline patrol pattern that’s fairly predictable, I manage to get decent photos of this one usually.
My survey for the Metroparks doesn’t require that I take photos, but I try to photo-document at least one of each species so I can submit them to the three-year-long Ohio Dragonfly Survey. That statewide effort ends in 2019, so next year I won’t have to spend as much time taking photos and my ode surveys can be done in less time.
That raises another point about what I’ve learned from doing these surveys so far. In the past couple of years, I’ve relied heavily on my photos to help me confirm identifications of many ode species. Sometimes that’s necessary for the species that require up-close viewing of reproductive appendages, so that’s okay. But I found that I’d relied so much on my camera that I wasn’t able to identify many of the small damselflies in the field. As soon as I started these surveys, I realized that was a problem. On my first survey day, I had to take dozens of photos of damselflies, and then come home and sort through them all to confirm my counts. I tagged them all with their quadrant number based on the time stamps on each photo, so I could put them in the correct column of the count sheet after I identified them.
It was tedious, and that was not going to work for an entire summer!
Here’s just a sample of three species of bluets so you can see how similar they are — keep in mind that they’re about the size of a sewing needle. (You should be able to see them larger if you click on the photos.)
So, I immediately went to my field guides and forced myself to learn them better so I could name them in the field and not have to take so many photos. Things went much faster after I did that. You would think that someone doing insect surveys must be a very observant person, but I definitely have my weaknesses in that area. In fact, I wrote about an embarrassing episode of mistaken identify here. I still have to use my camera sometimes to see the detailed marking on the damselflies, but I can usually name them right away now, and don’t have to spend much time at home studying photos.
One other thing I learned is that it’s very difficult to count insects, especially the tiny ones. Sometimes as I move along the trail, I’ll count a Calico Pennant, for example. Then it flies off and I keep walking, and then I see another Calico Pennant land in front of me. Determining if it’s the same one or not is tough sometimes, but I do my best to decide if it could be the one I just saw earlier, or if it’s likely to be a different one. Believe it or not, sometimes I can tell individuals apart by the wear and tear on their wings, so that helps me to avoid double counting. And I’m sure I miss many more than I count, particularly the tiny damselflies that float around in the grass. But I’m hopeful that this survey method will still give us useful data going forward.
I’m so pleased that I’m able to do something worthwhile for Metroparks Toledo, and am also glad that this experience has improved my identification skills. I’m already looking forward to next year, to see how the numbers may be different and whether any new species will show up.
Experienced hunters understand that they’ll have more success if they take the time to learn about the lives of their target species. Someone hunting deer or rabbit needs to know the needs and habits of those animals in order to track them down: Where do they eat? Where do they go for water? Where do they sleep?
And so it is with hunting dragonflies. Of course I’m not hunting them to kill them, but I do need to be stealthy in order to shoot them with my camera. After all, these are insects with a field of vision very close to 360 degrees. so they’ll always see you coming. Your best chances of getting close to them are when they’re so preoccupied with eating or mating that they don’t pay as much attention to you as they normally would.
Right now seems to be peak flight time for Flag-tailed Spinylegs, one of my favorites in the clubtail family. As their name indicates, clubtails are distinguished, in part, by the enlarged sections at the end of their abdomen. The width of the “club” varies among the species, from barely noticeable to knock-your-socks-off-and-pop-your-eyes-out-noticeable. Just for reference, I’ve shown you two species that don’t have large clubs: a Lilypad Clubtail above, and an Eastern Least Clubtail below.
At the opposite end of the spectrum are species like the Skillet Clubtail and Cobra Clubtail, with massively enlarged clubs. I’ve not seen either of those two species yet, so until I find one of them, the most impressive clubtail I’ve found has been the Flag-tailed Spinyleg.
Clubtails tend to rest on the ground rather than on vegetation like some other dragonfly families. They often use large rocks as hunting perches, and one of the best ways to find them is to search the surface of each and every rock along the edge of a body of water. It’s not really that difficult to track them down, but there’s a slight problem in getting photos of them. You see, since their prey consists of insects flying over the water, they tend to perch with their faces turned toward the water — and away from me standing on the shore. And so that has meant that it’s been hard for me to get photos of their beautiful faces.
But I’ve got a new strategy. I’m hunting them from a kayak now, so I have a better chance of seeing those stunning blue and green eyes as they sit on the shore watching the water. Pretty smart, huh? It’s not a perfect system though, because I’m on the water and constantly moving, therefore making it even harder to hold steady for a sharp photo. But it’s fun to keep trying, and to see how close they’ll let me get as I slowly drift toward them from the water instead of walking up behind them from the land. Being in a kayak gives me a lower, less-threatening profile too.
I recently discovered a large quarry lake and have been having a ball kayaking around the perimeter hunting for Flag-tailed Spinylegs. The video above gives you an idea of what it’s like to hunt them. You may notice something fly quickly from left to right in the last few seconds of the video — that’s one of the spinylegs. And that’s the reason the video stopped at that point, so I could turn around and photograph him.
The other day I spent three hours out there and saw at least a dozen spinylegs. It was windy though, and often my kayak would be pushed in the opposite direction from the dragonfly I was trying to photograph. It was quite the challenge! Luckily there are some little coves around the lake, so I tucked my boat into those and got some shelter from the wind. A couple times my kayak drifted so close to the odes that it was too close for my lens to shoot them. When that happened I just took the opportunity to sit quietly and watch them up close for as long as they would allow me.
So you know where they got the “flag-tailed” part of their name, but what about the “spinyleg” part? I think this photo explains that pretty well. Wouldn’t it be easy if everything had such a perfectly descriptive name? I had some fun writing about ode names last summer, in a post titled, “What’s in a Name?” I hope you’ll check that one out if you missed it the first time.
Limestone quarry lakes have the most beautiful, clear water. The limestone leaches calcite crystals into the water, turning it an incredible blue. As I drifted lazily along gazing into that azure water, I could almost believe I was in the Caribbean instead of in rural northwest Ohio.
This quarry has several miles of shoreline to explore, so I expect to have many more hours of enjoyment out there. And it seems to be a well-kept secret because I’ve only seen a couple other people on my first couple of visits. There aren’t many places left in this world where you can get space from other people, so I’m thrilled to find this spot close to home. I just wish I’d discovered it earlier in the summer when there were more dragonfly species flying. But that just gives me a reason to anticipate getting back out there next spring.
Writing that sentence made me sigh as I thought about how close we are to the end of summer. It seemed to take forever to get through the rainy spring this year, and once we finally got into summer, it seemed to fly by so quickly. I can’t believe it’s going to be time to pull out sweaters and jeans soon. I love autumn, but I’m so not ready for it yet!
I had a rewarding experience today while doing my dragonfly monitoring at Wiregrass Lake. It was a beautiful morning and there were only a couple other people at the park, so there were few distractions as I was concentrating on counting odes and taking documentation photos.
About halfway around the lake, a guy with a fishing pole came past me and stepped out onto one of the little stone fishing platforms. They’re popular fishing spots because there aren’t many accessible areas of shoreline from which to cast a line. But they’re also preferred perching spots for certain dragonflies, so I always approach them slowly and hope to find something interesting there.
So when this guy stepped out onto the rocks, I admit to feeling a little twinge of irritation that he would have flushed any good bugs that might have been there. But I know the parks have to serve people with varied recreational interests, and his interest just happened to conflict with mine. I have to be accepting of that, I get it.
But here’s where things became interesting.
Just as I said a friendly hello to him, a pair of mating Common Green Darners landed on some floating vegetation in front of us and began ovipositing. I was very excited because I’d been trying to get some photos of those darn darners as they flew around the lake, so this was a perfect opportunity to get an easy shot. As I often do, I expressed my excitement to the person who happened to be nearest to me, the guy with his fishing line barely ten feet from my target insects. I admit that I was also telling him about them so he wouldn’t throw his line at them and scare them before I got my photo. My comment was ignored, or so I thought. He didn’t say anything as I shot several photos, and I thought he must just think I’m a weird bug dork. (And I am, I know.)
But then he started asking me questions about what they were doing. He wanted to know if they were laying eggs in the water. He wanted to know how long it would be before the eggs hatched, and how long dragonflies lived. I was overjoyed to find someone who actually wanted to hear this stuff, and so I dove in and gave him much more information than he’d bargained for. I told him about how green darners migrate like monarch butterflies. I explained about how their larvae emerge from their “shells” just like cicadas do. Each time I spouted another fact about their life history, he seemed eager to know more.
But finally I realized I would just go on for an hour if he didn’t stop me, and so I apologized for bombarding him with information and started to leave. But he actually thanked me and said “That was very interesting!” and that instantly became one of the best moments of my entire day.
It’s human nature to want other people to share our interests, isn’t it? I wrote about nonconformity and social acceptance in my last post, and I’m reminded of it again today. I’m used to being looked at as an oddity when I gush about my latest nature passion, whether it’s birds, dragonflies, or hoverflies. It doesn’t bother me much, because these things give me a deeper appreciation for the workings of the natural world, and make my life rich and rewarding. So I can deal with being looked at that way. But on those occasions like today, when a total stranger shows interest in something and lets me tell them about it, I’m overjoyed and feel like I’ve made an important contribution to that person’s connection to the natural world too.
As I walked away to continue my monitoring, I smiled to myself as I imagined that guy telling his wife about our encounter over dinner tonight. “Honey, would you pass the salad please? And by the way, did you know that dragonflies can live under water for years before they emerge as flying insects?” You never know, it could happen. And that’s exactly why I write this blog, to share what I learn about nature with the hope that you, my readers, will be excited enough about it to tell someone else. And if you do, I hope you’ll tell me about it. 🙂
I’ve just returned home from this year’s Ohio Dragonfly Conference — also known as Odo-Con (Odonata Conference). This was my third year to attend, and it just keeps getting better. The conference moves around the state each year, allowing us to get a taste of the odes outside our home areas. The 2017 conference was in Ashtabula County, in the northeastern quadrant of the state. Last year’s was in Findlay (Hancock County), here in the northwestern corner of the state. This year’s Odo-Con was held in Gallia County in southern Ohio, down in a tiny little place called Rio Grande. I just discovered that the population of the village of Rio Grande was 830 in the last census, so I wasn’t exaggerating when I used the word tiny. But even so, they have a university there, and that’s where we held our conference.
Because they’re ectothermic, weather is a big factor in whether or not the odonata will be flying on any given day (they need the warmth of the sun to generate enough body heat). So I was discouraged when I arrived in the area late Friday afternoon as thunderstorms were passing through. I’d hoped to do a bit of dragon hunting before the evening presentations started at 6:00, but it just wasn’t meant to be. But the evening went well; I learned a lot and had a great time reconnecting with friends from around the state, and meeting some new friends too.
Since the weather hadn’t cooperated on Friday evening, I decided to skip the morning presentations and go out hunting on my own Saturday morning. The ode season has been very slow in coming to northwest Ohio because of our cool and wet spring, so driving four hours south felt like going on an exotic vacation and I was eager to find some interesting bugs.
Unfortunately, I didn’t find much that morning because it was still pretty cloudy. But the universe threw us a bone in the afternoon, allowing the sun to shine for our field trip groups as we explored Gallia and Jackson counties. My group first visited a small city park, which didn’t seem too exciting at first, but that’s where I saw my first lifer, a Citrine Forktail. I didn’t get a good photo of it, but saw another one later in the day, and that’s where I got this decent shot. Keep in mind, this dude is less than an inch long!
And as I was reading about this species, I learned something fascinating: in the Azores, Citrine Forktails are parthenogenetic, meaning that females lay unfertilized eggs that become new females. Ahem, no males needed. Dennis Paulson’s book says that this is the only species of odonate known to reproduce this way. So I wonder if that means there are no males in the Azores, or if they’re just redundant. (There are so many possible jokes I could make here, but I’ll exercise restraint. I’m giggling though.)
Things were starting to get exciting when we found a Great Blue Skimmer perched on a branch hanging over a small stream. We took turns holding back foliage so we could all get a look at it, and I managed to get a good enough shot to document it. It’s too bad he wasn’t turned more toward the camera so you could see his cool white face with blue eyes.
Soon we moved on to Cooper Hollow Wildlife Area, where we spent several hours visiting a few ponds. The first pond was absolutely loaded with the flying monsters, and we had a blast. It was so overwhelming that I found myself feeling like I didn’t know what to photograph first. I’d be shooting a Spangled Skimmer right in front of me, and someone would say, “Hey, there’s a darner flying!” and I’d want to try and shoot that one too. At the same time there would be clubtails landing on the ground all around my feet, and those usually require photos from two or three angles, so they’re a challenge. Here’s a photo of the pond — the electrical lines were emitting a constant crackling/buzzing sound which was a bit unnerving, but still worth it for chance to see so many dragons zipping around us.
The Ohio Dragonfly Survey requires either a photo or an actual insect specimen to document every sighting. That makes it quite a bit harder than submitting an eBird report, on which you can report birds without photos (you can even report birds that you’ve only heard and not seen, if you’re certain of the species). This is the third and final year of the new survey, and we’re busy searching the records to see which counties don’t have records of certain species, and trying to fill them in if we can. The results of the three-year survey will be published in book form, and I know quite a few people who will be anxious to get their hands on it. (By the way, if you take pictures of dragonflies or damselflies and would like to contribute your sightings to the Ohio Dragonfly Survey, go here to see how easy it is.)
I saw about 20 species just at this pond, and overall we saw more than 40 species during the conference. (Plus, there are some clubtails that we’ll probably never be able to confirm down to species level.) Not too bad for a few hours of field time! Our state survey coordinator, MaLisa Spring, was my field trip leader, and she found a new species for Ohio right at this pond. It’s being discussed by the experts now, but what was thought to be a weirdly-uncolored Banded Pennant (Celithemis fasciata) has likely turned out to be a first state record for Double-ringed Pennant (Celithemis verna). Very exciting! (If you’d like to see the photo and the ensuing discussion about it, go to iNaturalist, here.)
I photographed what I thought was a Slaty Skimmer at this pond, but now there’s a chance this is another one of the Double-ringed Pennants. It may not be possible to tell for sure because I only got this one angle documented, but the discussion is continuing on iNaturalist.
That’s some good stuff right there. I had such fun on this trip. Nature people are some of the most interesting people you’ll ever run across, and I learn something from every person I interact with at these events. I’m excited to be leading my first dragonfly field trip here in Toledo this Saturday (for Toledo Naturalists Association), and I hope to get some more local people enthused about contributing to our state dragonfly records.
On Sunday morning I decided to take the very long way back to Toledo, stopping along the way to hunt for more cool insects. I’ve got another post coming about a special place I stopped later in the day, but here’s what I found first thing Sunday morning.
This is a state endangered species, the Blue Corporal. Ohio is at the far northern boundary of its range, and we were hoping to document it this weekend. It was discovered by another field trip group on Saturday, so I knew the general location to begin my search on Sunday morning. I drove sooo far out a narrow gravel road that I lost cell reception and started to feel a bit nervous. As I got to the small lake that was my destination, I passed two guys sitting beside the road in a pickup truck. I started to think it might not be such a good idea for me to be way out there alone, and was wondering if I should just turn around. So I was extremely relieved to find another ode hunter already down at the parking lot on this dead end road. Not only did that make me feel more safe, but he had just seen the Blue Corporal and took me on a walk down a muddy road and pointed to the trunk of an evergreen tree and said, “There it is, just above the base of that branch that has been cut off….about a foot to the left.” And indeed, there it was, another lifer!
I took a few documentation photos but didn’t want to get too close and risk scaring it away, because I knew there would likely be other people coming to see it in the next couple of hours. Since I had many hours of driving ahead of me, I left right after seeing this bug, and just a half mile up the road I came across a couple who appeared to be lost and I knew right away what they were looking for — I gave them directions and headed off, winding my way to the west through the many small towns in southern Ohio.
Come back for some stories about the rest of this day’s adventures soon!
Dragon- and damselflies don’t often perch on photogenic flower heads, so when I found this one yesterday I was pleased. Of course it’s not a flower, but close enough. This is a female emerald spreadwing damselfly (Lestes dryas), clutching the seed capsule on a stem of seedbox (Ludwigia alternifolia). I’m calling it a two-fer because it’s an ode on a native plant, two awesome things for the price of one!
I discovered seedbox last fall while helping to collect seeds for my Wild Ones chapter, and instantly fell in love with its square seed capsules. They’re filled with tiny little seeds that rattle when shaken. Each seed capsule has a hole in the top, presumably so the seeds can fall out when the plant is blown by the wind or otherwise jostled. This plant has lovely yellow blooms in the summer, but they aren’t nearly as interesting as these little brown boxes, if you ask me. 🙂
On the morning of March 12, the ship anchored off the coast of Isabela Island near Elizabeth Bay. We piled into the zodiacs in groups of about 15 people, and headed off to explore the beautiful and peaceful mangrove lagoon.
Almost as soon as we entered the cove, we found a lone Galápagos penguin resting on a rock. He lay there calmly as our boat idled 20 feet away, allowing us to take some nice photos before moving on into the lagoon. These are the only penguins in the northern hemisphere, and are endemic to the Galápagos. The Galapágos Conservation Trust says this about their current conservation status: “In 1982, there was a particularly strong El Niño event that caused 77% of the population to die of starvation and the population has been recovering ever since. The current population is estimated to be just 2,000 birds.”
We soon saw a sea turtle napping in the shade, using the mangrove branches to keep himself afloat.
Another one popped up to say hello.
I absolutely love turtle heads, don’t you? They look like toothless old men, but in a cute way.
In this lagoon we also got our first and only fleeting looks at golden rays. Unfortunately I didn’t get any photos of them before they were gone. I was also excited to see quite a few dragonflies zipping around above us. I’d not held out much hope of finding any dragonflies on this trip, so it was a big thrill. Dragonflies need fresh or brackish water, and I knew that most of our trip would be spent on salt water. But I believe the lagoon is brackish water, so that’s why there were dragonflies there. I was trying so hard to get a photo of one of them, and the boat driver tried to get me close to one, but I just couldn’t get the photo as the zodiac bobbed on the water. Talk about frustration! But all wasn’t lost in the ode department, because I managed to get a photo of one dragonfly on North Seymour island later in the week.
Small groups of penguins entertained us as they swam around us. We found two sea lions tucked up in the mangrove trees enjoying naps in the shade. I was a little bit irritated that our guide nudged the boat into their little sheltered hideaway to allow people to take pictures of them. Most times the guides were very good about keeping a decent distance from the wildlife, but this time I felt they went too far in invading the space of the sea lions, so I was glad when we finally backed out of the little inlet and moved on. I didn’t take any pictures of them because I felt bad that we were there.
This striated heron was lurking in the shelter of the mangroves too. I’ll have more to say about this species in a future post.
As we began our return trip out of the lagoon, a great blue heron flew in and landed in a mangrove tree, and I had that weird feeling that I often get when birding in a far-off location and seeing a bird that I see in Ohio. It’s like seeing a friend from home and saying, “Hey, I know you!”
There was one more treat to discover before we went back to the ship, and boy, was it great! This flightless cormorant was sunning itself on a rock as we emerged from the lagoon, and it made for such a gorgeous photo with the backdrop of the brilliant turquoise water.
The flightless cormorant is another endemic species in the Galápagos, so this was high on my bucket list of species I wanted to see. We only saw a few of them on the entire trip, and this was the closest we got to one. This photo is perfect for highlighting his stunted wings, which are the obvious reason that he’s flightless. He doesn’t even use those wings to propel himself through the water when fishing, instead relying on his powerful feet for propulsion. Because his wings don’t produce much oil, he can’t waterproof his feathers and has to spread the wings to dry in the sun after he’s done diving.
Okay, that’s three posts on the Galápagos trip, and I haven’t even mentioned Darwin’s finches yet. Stay tuned!
Here in northern Ohio we’ve entered a period of the year that I think of as, “Is It Time Yet?” We’ve been through the depths of a frigid winter and have been treated to some brief warmups in which all the snow melted and we could bask in the rejuvenating glow of the sun. Those late winter warm spells are the first sign we get that spring is, if not around the corner, at least on the horizon.
I always start dreaming of the not-too-far-off day in April when I’ll see my first dragonfly of the year, a day of virtual high-fives texted between my odeing buddy and myself: Me: “I saw my first Green Darner today! What did you find?” Him: “I think I saw a Springtime Darner!” Me: “Woohoo, it’s on!” (And that’s our virtual high-five.)
And so ode season will kick off and we’ll spend the summer happily sharing cool sightings and photographs. Until that day comes, I must have patience. But I can still daydream. The other day I went to a spot at Maumee Bay State Park where I photographed this flag-tailed spinyleg last July.
Isn’t he spectacular?! I have such great memories of stalking him around the edges of that pond, and the excitement that bubbled up in me when he came to rest on a log very close to the water’s edge, in easy photographic range.
This is the photo I took of that pond a couple days ago:
Standing there at the edge of the frozen water, I felt like a small child waiting outside a toy store, asking her mom, “Is it open yet? Huh, mom? When will it open?!” Because I know that there are larvae of dragonflies and damselflies beneath that frozen water right now, just waiting for the temperatures to rise.
Some species of dragonflies migrate to warmer climates (more about that below), but most of the adults die before winter each year. If they’ve been successful in breeding, they’ve left behind larvae who will live under water for varying amounts of time, depending on species. Some of them live under water for years. And each spring, some generations will be ready to emerge from the water and shed their exuviae to become the beautiful winged adults that are the source of so much of my summertime entertainment.
If you pay attention around any fresh water source, you can often find many of these empty exoskeletons, or exuviae, attached to vegetation. There’s always a hole on the top where the adult dragonfly broke through and emerged into a whole new world. That’s just one more aspect of their lives that I find so fascinating; they live part of their lives under water and then another part as incredible speeding winged insects who can maneuver like helicopters.
Here’s another exuvia I found last summer. I can’t tell which species this one was, because I should have taken a photo from the side as well as from the top. I’m just learning to identify the exuviae, using tools like this one from the National Park Service.
I mentioned that some species of dragonflies migrate to warmer climates. A study was published late last year that indicates that the common green darner (Anax junius) has a migration very similar to that of the monarch butterfly. Their migration involves three separate generations of adult insects, moving north and south at various times. This article describes the study and has some neat diagrams to illustrate it. (Oh, I should mention that if you have any interest in contributing your sightings in this last year of the Ohio Dragonfly Survey, you can click here for details.)
According to that article, there are some common green darners emerging from waters in the southern parts of North America right now, and they’ll soon be on their way to Ohio where my camera and I will be waiting impatiently for their arrival. I think I can make it. In the meantime, I’ve got a very exciting mystery trip coming up in less than two weeks, so that will provide a much-needed distraction as I await the return of the odonata to Ohio. I can’t wait to share this trip with you!
Autumn has long been my favorite season of the year — colorful tree foliage, cooler air for comfortable hikes, clear cerulean skies, cozy sweaters…I could go on. But this is also a season tinged with sadness for the end of summer. Lately I’ve been feeling a bit gloomy about the impending end of dragonfly season. It’s frustrating to have such a short time each year to watch these fascinating insect predators.
I’ve written before about the Ohio Dragonfly Survey and how you can contribute to it. I’ve submitted many records of my observations to the survey in the past two years, and look forward to adding more in the third and final survey year next summer. A few weeks ago I got a message from one of the survey coordinators pointing out that they would like a few 2018 reports from Fulton County, and asking if I would keep that in mind while I was out and about.
I live in Lucas County, which has a few very active odonata observers, including one of Ohio’s experts. So there’s not much chance of me finding something here that hasn’t already been documented. But Fulton County is a rural county just to the west of Lucas County, and it has far fewer people reporting odonata sightings. So that means I can more easily make a meaningful contribution to the database with my sightings there.
So the other day, after doing some online location scouting and armed with a list of three target species, I drove west through the corn fields.
The three target species were all damselflies: blue-fronted dancer, fragile forktail, and stream bluet. I knew one good pond location from earlier visits in that area, but I knew that spot wouldn’t be likely to have the dancer or the bluet, both of which are usually found near rivers or streams rather than the pond that I was headed to first.
I was pleasantly surprised when the first bug I saw was one of my targets, the fragile forktail. He’s easy to identify because of the green exclamation mark on his thorax.
I spent about 45 minutes more at this pond location, documenting some other species, before heading off in search of flowing water.
I went to a place called Tiffin River Wildlife Area. I was optimistic about this location until I got there and found that there was virtually no access to the water. I found one small gravel parking lot with barely enough room to turn the car around, but it was surrounded with head-high vegetation and no paths. Hmmm. This would require some ingenuity. I drove around a bit and found a dirt driveway that dipped down toward the water, but it had a chain across it about 75 yards down and a sign that said “No Trespassing.”
I figured, okay, I can walk on this first section as long as I don’t go past the chain and the sign. I wasn’t going to do any harm, and it didn’t look like anyone had driven that driveway in a long time; it was full of deep ruts and bordered by tall weedy vegetation. And amazingly, I found my second target species on that driveway: blue-fronted dancer. I almost did a happy dance after I got my photograph for documentation.
I also got this pretty picture of a viceroy butterfly nectaring on loosestrife.
So, two down, one to go. The only other spot I could find with the potential for running water was Harrison Lake State Park. From the map view I’d noticed there was a dam at one end of the lake, with potential access to the stream below it. So off I went further west.
I’m sure it had a lot to do with the beautiful weather on this day, but this park impressed me immediately. I saw that their campground was full of people on this late summer Friday, but somehow it wasn’t noisy. It felt peaceful and relaxing. And even better, there was access to the stream below the dam, just as I’d hoped. And this is where something exciting happened.
I’d found a couple interesting species (orange bluet and dusky dancer), and was taking photos of them and just quietly observing the water. I was looking down at something on the ground, and as I lifted my head I saw an enormous pair of green eyes speeding directly toward me, only a dozen feet away. I barely had time to think “River cruiser!” when it whizzed past me like a green bullet and went high up into the trees behind me. I spent a half hour searching for it, desperate to document it for this location. I had a hunch it could be a species that hadn’t been recorded there before. But, alas, I didn’t find it again.
I eventually gave up and walked back up the hill to the top of the dam, and then slowly toward the parking lot. I was enjoying the beautiful day, but couldn’t help feeling a bit dejected after the close encounter with the river cruiser and then losing it.
I was in the parking lot, about 100 yards from my car, when –BZZZZZT! — something big flew past my head and perched in a tree 30 feet above me. I knew what it was before I saw it: River cruiser!
I started taking photos immediately, not knowing how long it would stay there. My first impression was that it was a Wabash river cruiser, a hard-to-photograph hybrid species. And indeed, that’s what it was! I couldn’t believe my luck, and took probably 70 photos of it, even though it barely moved. I always try to get multiple views of any dragonfly, because sometimes you need to see multiple field marks to confirm an identity. The diagnostic field mark on this species is the moth-shaped yellow mark near the end of the abdomen.
And not only did I get a killer view of this dragonfly, I photographed a really interesting behavior: the transfer of a sperm packet.
Prior to mating, the male has to transfer sperm from his primary sexual organ to his secondary genitalia, where the female will have access to it when they link their bodies in the mating process. This photo shows him doing exactly that. And this made me believe that I’d seen two different individuals; the first one I saw below the dam might have been the female.
I felt great that I’d gathered some valuable data for the Ohio Dragonfly Survey (the Wabash river cruiser did turn out to be a new species for Fulton County), and I left that park with a smile a mile wide.
I’m so glad I take the time to write about these nature experiences; not just to share them with you, but for myself too. They’re fantastic memory joggers as I reminisce in the winter, sitting beside a crackling fire counting down the days until the first ode sighting next spring. I’m also planning to do some hard-core studying this winter, as I’ve been enlisted to lead the annual dragonfly field trip for Toledo Naturalists’ Association in June. I don’t need to be an expert by then, but I’d like to be as prepared as possible so everyone has fun and learns something on our outing.
A couple years ago I wrote about this little reminder I kept on my refrigerator, and it’s still working well for me. As long as I keep making plans for interesting things to do, life is good. 🙂