Feeds:
Posts
Comments

Archive for the ‘Insects’ Category

On Monday I photographed this female Widow Skimmer dragonfly (Libellula luctuosa) at Occoquan Regional Park, my first sighting of this species in 2024. Why is it called a “Widow Skimmer?” Someone apparently thought the dark patches on the wings of this species looked like the mourning crepe that historically widows wore and even a portion of its Latin name “luctuosa” means “sorrowful.”

The dark wing patches are quite distinctive and may it relatively easy to identify this species. The males of the species, which I did not see at all that day, have patches of white in addition to the same dark wing patches of the female and their bodies are blue in color when they are mature. Click on this link to see some photos of a male Widow Skimmer from a few years ago.

Widow Skimmer

© Michael Q. Powell. All rights reserved.

Read Full Post »

This Gray Petaltail dragonfly (Tachopteryx thoreyi) looked like it was trying to climb a small tree when I spotted it from a distance on Monday at Occoquan Regional Park in Lorton, Virginia. I was happy to be able to capture this shot from the side, because when Gray Petaltails perch flat against a tree, they become virtually invisible—their black and gray coloration causes them to blend in perfectly with the rough bark of a tree.

Gray Petaltail

© Michael Q. Powell. All rights reserved.

Read Full Post »

This bumble bee was busily filling its pollen sacs and sucking up nectar when I spotted it recently during a visit to Occoquan Bay National Wildlife Refuge. I cannot identify the plant on which the bee was feeding, but I love its beautiful colors and the blurry bokeh balls that were created in the out-of-focus areas of the plant.

As many of you know, when you move in close to a subject, the depth of field becomes really narrow, which means that only certain elements will be in sharp focus. My goal as a photographer is to try to make sure that the most critical areas, which usually include the eyes of the subject, are in focus. In this case, I was delighted that both the eye and the extended proboscis are relatively sharp.

bumble bee

© Michael Q. Powell. All rights reserved.

Read Full Post »

Dragonfly identification can sometimes be quite difficult—many species, and especially the females of the species, are similar in color and in markings. There are, for example, quite a few blue male dragonflies with females that are yellow and brown, like these Spangled Skimmers (Libellula cyanea) that I spotted last week at Occoquan Regional Park.

Fortunately, however, this dragonfly is quite easy to identify  because of its unique black and white stigmata, the spots on the outer leading edge of each wing. As far as I know, no other dragonfly in our area has bicolor stigmata. The stigmata are not there for decoration, but serve an important role in the flight of dragonflies. I do not really understand the physics of flight, but have read that the stigmata are heavier than the adjoining cells and help to stabilize the vibrations of the wings.

Now that we are into June, I have noticed that most of the summer dragonflies have appeared on the scene. There are a few that I have not yet spotted, but with a little luck I will see (and photograph) them soon.

Spangled Skimmer

Spangled Skimmer

© Michael Q. Powell. All rights reserved.

Read Full Post »

Male dragonflies can be quite aggressive in fighting off potential rivals, but they seem somewhat more tolerant of males from a different species. This past Wednesday I spotted two dragonflies peacefully coexisting and sharing a perch at Occoquan Regional Park.

The dragonfly perched near the top of the branch is a male Spangled Skimmer (Libellula cyanea) and the one perched a bit lower is a male Common Whitetail (Plathemis lydia). I have already seen quite a few Common Whitetails this season, but this Spangled Skimmer was one of the first that I have spotted this yea.

Spangled Skimmer and Common Whitetail

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

I was delighted this week to spot my first Ebony Jewelwing damselflies (Calopteryx maculata) of the season while I was exploring at Occoquan Regional Park. Members of this species have distinctive dark wings and are generally found in shaded forest streams where the mixed lighting makes it challenging to photograph them.

When things work out, though, I can sometimes get a good shot of one, like this dramatic portrait of a female perched on a sunlit piece of vegetation. Only females have the little white patches (known as pseudostigmas) on their wings that along with their terminal appendages make them easy to identify.

Ebony Jewelwing

© Michael Q. Powell. All rights reserved.

Read Full Post »

I know that summer is almost here when I start to see Blue Dasher dragonflies (Pachydiplax longipennis) at my local ponds and they will some become our the most abundant dragonfly species in our area. Mature Male Blue Dashers are blue, as their name suggests, but females have a black and yellow pattern on their abdomens, like the one pictured below that I photographed on Tuesday at Jackson Mile Abbott Wetland Refuge.

Quite often Blue Dashers perch on vegetation in the “obelisk” pose, with their abdomens raised up into an almost vertical position. It is thought that this pose is a type of thermoregulation, with the raised abdomen reducing the amount of exposure to the direct sunlight and thereby keeping the dragonfly’s body a bit cooler.

Blue Dashers are sentimentally special to me because my very first posting on this blog on July 7, 2012 featured a male Blue Dasher dragonfly in an obelisk pose. In case you are curious, here is a link to that posting that was simply entitled Blue Dasher dragonfly.

Blue Dasher

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

I love the light and delicate pose of this handsome male Calico Pennant dragonfly (Celithemis elisa) that I spotted during a recent visit to Occoquan Bay National Wildlife Refuge. Pennant dragonflies, like the Calico Pennant, usually perch on the very tips of vegetation where they sway in the slightest breeze—like a pennant.

The red of the dragonfly’s body and the green of the vegetation help the dragonfly to “pop,” because red and green are complementary colors, i.e. they are directly opposite each other on the traditional color wheel that artists use.

Callico Pennant

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

I haven’t seen any Monarch butterflies yet this season, but I did spot this similar-looking Viceroy butterfly last week at Occoquan Bay National Wildlife Refuge. Viceroy butterflies are generally much smaller than Monarchs, so I can often tell them apart from a distance. When I get closer though, the most obvious distinguishing feature is that Viceroys nave a thin black line across their hind wings that Monarchs do not have.

Viceroy butterfly

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

I was delighted to spot this cool-looking Brown Spiketail dragonfly (Cordulegaster bilineata) this past Wednesday at Occoquan Regional Park in Lorton, Virginia. I was hoping to get a closer shot, but the dragonfly did not hang around very long before flying away.

Fortunately I was shooting with a relatively long lens—I was at the long end of my Tamron 18-400mm zoom lens—and was able to capture a good deal of detail of the dragonfly, including its stunning two-toned compound eyes. The dragonfly appeared to be barely hanging on to the vegetation when I took this shot, which may partially account for its swift departure.

Brown Spiketail

© Michael Q. Powell. All rights reserved.

Read Full Post »

I know that summer is almost here when dragonflies like this male Eastern Amberwing (Perithemis tenera) begin to appear. I spotted this distinctive-looking dragonfly on Tuesday at a small pond at Jackson Miles Abbott Wetland Refuge.

Eastern Amberwings are really small at about one inch (25 mm) in length. According to the Dragonflies of Northern Virginia website, the Eastern Amberwing is “the smallest dragonfly in Northern Virginia, and second smallest in the U.S. (only Elfin Skimmers are smaller), Amberwings are fascinating little insects. No bigger than a horsefly or paperwasp, nature still found a way to pack a lot into this tiny package.”

These little dragonflies are considered to be wasp mimics, “Amberwings may be our only dragonfly that actively mimics a wasp. The markings and shape of their abdomens resemble a small wasp, but they take it several steps further. When threatened, they rhythmically move their wings up and down while pulsing their abdomens. All to imitate a wasp, we think, so as to scare off potential predators that believe they’re about to be stung.”

I love the stunning amber wings that are found on only the males of this species—the females have patterned wings that are mostly clear. As you can see in both photos, the male’s wings are quite transparent despite their darker color. I also really like the intricate patterns and markings on the abdomens of Eastern Amberwing dragonflies.

I look forward to seeing more and more Eastern Amberwings over the course of the next five months or so. Some summer dragonfly species have not yet appeared, but I am seeing more and more dragonflies as the temperatures rise and the hours of sunlight are extended.

Eastern Amberwing

Eastern Amberwing

© Michael Q. Powell. All rights reserved.

Read Full Post »

I spotted this beautiful Black Swallowtail butterfly (Papilio polyxenes) last week at Occoquan Bay National Wildlife Refuge. The orange circle with the black dot in between the wings helps to distinguish this species from several similar-looking dark butterflies in our area.

I chased this butterfly around for quite some time before it finally stopped for a moment on this vegetation—I often get a good workout when photographing butterflies. I am quite happy with the way that I was able to capture the varying shades of green surrounding the butterfly that add a lot of visual interest to this simple composition.

Black Swallowtail

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

I photographed this stunning Lancet Clubtail dragonfly (Phanogomphus exilis) last Monday on a rotten log in the dappled sunlight as I was exploring an area near a creek in Prince William County, Virginia. Of course, I was excited to photograph this dragonfly, but it was actually the interesting lighting and the rough texture of the log that  mainly captured my attention.

Lancet Clubtail

© Michael Q. Powell. All rights reserved.

Read Full Post »

Some of the species of birds and dragonflies with the word “common” in their names are quite rare in my area. However, Common Baskettail dragonflies (Epitheca cynosura) have been quite common this month and I have seen them at a number of different locations, most notably at the small ponds that I like to visit. At these ponds, I usually spot the Common Baskettails as they conducted repeated low patrols over the surface of the water and I can never resist the chance to photograph them while they are in flight.

As I have noted in the past, it is very challenging to photograph a dragonfly while it is flight. Sometimes the dragonflies will hover a bit, giving me a better chance of getting them in focus, but often they whiz on by and I try to track them in my viewfinder. Occasionally I will manage to use auto-focus, but often I resort to manual focus, which, of course, is tough with a moving subject. I try to determine the flight track they are using and identify likely areas that they will pass through and then pre-focus on that area and wait for them to come by. Needless to say, you have to be very patient and persistent if you want to try this kind of photography.

I captured the first two shots at a small pond in Prince William County and was quite pleased with the images. The two shots were taken as part of a sequence and are quite similar with the exception of the position of the wings. Normally I am so thrilled to get a sharp shot that I am not concerned about the wing position, but in this case I had the luxury of having several variants of essentially the same shot.

The final two shots were taken at the pond at Jackson Miles Abbott Wetland Refuge. There was vegetation surrounding the water at the spot where I was standing and it sometimes would obstruct my view as I tried to track the dragonfly. In the third photo, I used one of the offending pieces of vegetation as a compositional element that makes it look like the dragonfly was approaching a finish line tape.

I included the final photo to give you a sense of the habitat. In several areas of the pond there were patches of lily pads and I tried to capture shots of the dragonfly flying over the lily pads. I was largely unsuccessful, but the photo gives you an idea of what I was trying to accomplish. (If this were a shot of a bird, it would definitely qualify as “butt shot,”but I am not sure that you can really say that a dragonfly has a “butt.”)

Common Baskettail

Common Baskettail

Common Baskettail

Common Baskettail

© Michael Q. Powell. All rights reserved.

Read Full Post »

On Monday I was happy to spot my first Stream Cruiser dragonfly (Didymops transversa) of 2024 in a field of ferns adjacent to a creek in Prince William County. Check out the length of those back legs. Wow!

I do not see Stream Cruisers at most of the usual locations where I search for dragonflies, because they can be found only in specific habitats. According to the Dragonflies of Northern Virginia website, “Stream Cruisers are habitat specialists. Look for them in stable, small to medium, forest streams, with good flow and rocks. The best place to find them is hunting in sunlit meadows near their wood-land waterways.”

Stream Cruiser

© Michael Q. Powell. All rights reserved.

Read Full Post »

On Monday I spotted this beautiful Red-spotted Purple butterfly (Limenitis arthemis astyanax) in a sea of ferns adjacent to a creek that I was exploring in Prince William County, Virgnia. I love the iridescent blue color on the wings and the little red spots that provide a nice accent color. Although I see a slight purplish tint to the wing on the right, I really don’t see very much purple on this butterfly’s body despite the fact that “purple” is a prominent part of the name of this species.

The color and texture of the ferns make for a beautiful backdrop for the butterfly and add a bit of visual interest without being distracting.

Red-spotted Purple

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

Last week I photographed a female Swamp Darner dragonfly (Epiaeschna heros) depositing some eggs into a rotten log at the edge of a small pond at Occoquan Bay National Wildlife Refuge. Some dragonflies deposit a large number of eggs into the water or floating vegetation by tapping their abdomens rapidly and repeatedly at different locations, while others, like this Swamp Darner, deposit their larger eggs more slowly and deliberately by making a slit and inserting the eggs directly into wet wood and other debris with their blade-like ovipositors.

Swamp Darners are one of the largest dragonflies in our area, with a body length of about 3.4 inches (86 mm) in length. I love the description of this species on the Dragonflies of Northern Virginia website, “I often tell people on dragonfly walks that if they see a rhino with wings, it’s a swamp darner. Slight exaggeration, perhaps, but they are pretty impressive.” Some dragonflies are so nimble and acrobatic in their flight that they remind me of fighter aircraft, but the bulky size of the Swamp Darner makes me think more of bomber aircraft.

Swamp Darner

© Michael Q. Powell. All rights reserved.

Read Full Post »

Identification guides for birds, dragonflies, and damselflies often use illustrations rather than photos? Why? It is almost impossible for a photo to show all of the key identification features of a species.

Last week, for example, I captured some wonderful photos of a male Aurora Damsel damselfly (Chromagrion conditum) at a small pond in Prince William County, Virginia. In the first photo below, I was able to capture an image from almost directly overhead that shows the markings on the tiny damselfly’s thorax and abdomen. The image also shows how this damselfly species perches with its wings partially spread, unlike most damselflies that perch with their wings closed above their bodies. The second shot shows many of the same features.

However, it is fairly uncommon to be able to capture views like those in the first two shots and they do not show what is often the key identification feature for this species. Both genders of Aurora Damsels have distinctive bright yellow patches on the sides of their thoraxes, as you can see in the third photo. You might notice that in this photo, the markings on the tip of the abdomen are much less clear than in the first two shots, but that’s not a problem, because that yellow patch immediately signals that it is an Aurora Damsel.

Whenever I can, I try to capture shots of my subjects from multiple angles. The different angles of view may help in identifying a species or may create a more aesthetically pleasing image. One of the coolest things about photography is the way in which it combines science and art—I can be as scientifically geeky or as artistically creative as I want to be.

Aurora Damsel

Chromagrion conditum

Aurora Damsel

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

On Monday I finally spotted some mature male Calico Pennant dragonflies (Celithemis elisa) with red markings at Occoquan Bay National Wildlife Refuge. Heretofore all of the males that I had seen this year were immature and had yellow markings, like those of their female counterparts.

The first two photos show male Calico Pennants. I love the way that the red marking on the abdomen look like a series of tiny hearts. The dragonfly in the third photo is an immature male—you can tell that it is a male by looking at the shape of the tip of the abdomen (the “tail”).

For the sake of comparison, I have added a final photo of a female Calico Pennant from a posting I did in May 2020. You can readily see that the dragonflies in the last two photos are similar in coloration, but you have to look a bit closer at them to see that the wing patterns are slightly different and the shapes of the terminal appendages are quite different.

Most of us tend to rely on colors for identifying species of birds and insects, but I have learned over time that color is often not a reliable identification feature, especially for immature subjects, when the males and females are often similar in color and the color differentiation becomes apparent only when they mature.

Calico Pennant

Calico Pennant

Calico Pennant

Calico Pennant

© Michael Q. Powell. All rights reserved.

Read Full Post »

I spotted this dragonfly during a recent visit to Occoquan Regional Park. I got a glimpse of the markings on its body as it zoomed past me, so I knew that it was a spiketail, but I was not sure about the species. I watched it patrol up and down a small stream and managed to finally get a shot of the dragonfly when it perched momentarily.

It turned out to be a Brown Spiketail (Cordulegaster bilineata), one of several spiketail species that I have seen in the past at this park. During most of my previous encounters with spiketails, they have been perching on vegetation in sunlit areas along a trail.

In this case, the area where the dragonfly was patrolling was mostly in the shade, so it was a real challenge to track and photograph the dragonfly. In case you are curious, I took the photo with my Canon 7D DSLR and my Tamron 18-400mm lens extended to 400mm with settings of ISO 800, F/8.0, and 1/320 sec. The settings were not optimal for getting a shot, but they worked well enough.

Brown Spiketail

© Michael Q. Powell. All rights reserved.

Read Full Post »

This dragonfly was perched on the ground on Monday at Occoquan Bay National Wildlife Refuge when I spotted it. I knew immediately that it was either a Lancet Clubtail (Phanogomphus exilis) or an Ashy Clubtail (Phanogomphus lividus), but these two species are so similar in appearance that it is tough for me to tell them apart.

I checked my identification guides and realized that I had to look at the dragonfly more closely and get a bit more geeky. The abdomen (the “tail”) of dragonflies  consists of ten segments traditionally numbered S1 through S10, starting from the point at which the thorax (the “chest”) meets the abdomen (S1) and going downward to the tip of the abdomen (S10).

The Dragonflies of Northern Virginia website notes that for Lancet Clubtails there is a “noticeable bright yellow flange on sides of S8 & S9 (male and female), while Ashy has almost no flange, and less bright yellow.” I knew about these differences, but couldn’t see them clearly enough when I was in the field.

The dragonfly was relatively cooperative and I was able to get a shot of it from almost directly overhead. The image is really cluttered, because of the vegetation, and  artistically is not a great photo, but it does provide the kind of details that are helpful for identification.

In the image I saw what appear to be yellow flanges on the sides of S8 and S9  and I could clearly see the appendages at the tip of the abdomen, which helps me identify the gender of the dragonfly. These elements suggested to me that it was a female Lancet Clubtail. I posted a photo in a Facebook group devoted to dragonflies and damselflies in Virginia and was delighted when one of the most experience members there agreed with my identification of this dragonfly.

I don’t expect most of my readers to delve this deeply into dragonfly anatomy, but I figured it might be interesting to learn about what some of the myriad considerations that swirl about in my mind as I seek to photograph and identify these beautiful little creatures. Sometimes I am successful in connecting the dots and coming to a conclusion, but at times the identities of my subjects remains a mystery.

Lancet Clubtail

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

A month ago it was easy to spot the early-emerging insects, because very few of them were flying. Now, though, the air is so full of bees, flies, and other aerial creatures that it is a little harder to detect the dragonflies and damselflies that are my primary targets.

As I walk along grassy paths now, little clouds of grasshoppers burst into the air in front of me. Most of the grasshoppers jump out of sight, but occasionally one will perch on some nearby vegetation and remain immobile, hoping perhaps that I will not see him.  Last week at Occoquan Regional Park I captured a shot of one such grasshopper.

I am definitely not an expert on grasshoppers, so I had to pore over page after page of entries on the internet before I finally concluded that this might be a Green-striped Grasshopper (Chortophaga viridifasciata). Still unsure of the identification, I posted a request for help on the BugGuide website and an expert there confirmed my identification of this grasshopper.

From an aesthetic perspective, I loved the curve of the spiky stem of the plant and my initial instinct was to go for a looser crop of the image, as you can see below in the second photo. However, I realized that viewers could not see the details of the grasshopper, so I made the more zoomed-in version that you can see as the first photo below.

The two images, which are actually just different versions of the same shot, complement each other and serve different functions. The first one focuses more on the grasshopper as the primary subject, while the second one makes the environment a co-star. I like both versions.

Green-striped Grasshopper

Green-striped Grasshopper

© Michael Q. Powell. All rights reserved.

Read Full Post »

Odonata is an order of flying insects that includes dragonflies and damselflies. During the warmer months of the year I spend a lot of time hunting for dragonflies, the larger members of this group of magical creatures, but I also enjoy searching for damselflies, their smaller and more fragile “cousins.”

Damselflies, like dragonflies, come in a variety of colors and shapes. Here is a sampling of images of damselflies that I captured this past Thursday during visits to Jackson Miles Abbott Wetland Refuge and Occoquan Regional Park, both of which are located within 15 miles (24 km) of my house.

The first photo shows a Orange Bluet (Enallagma signatum). I am always amused by the name of this species, because it seems incongruous to have an orange-colored member of a genus called American Bluets. Most male bluets are, in fact, blue, but others are orange, scarlet, and burgundy and there is even a “Rainbow Bluet.”

The second image shows a male Azure Bluet (Enallagma aspersum), whose colors are closer to my mental image of a bluet. Most bluets are some combination of blue and black and it can be tricky trying to determine specific species by examining the color patterns on the body and in the eyes.

The third shot is of a male Fragile Forktail (Ischnura posita), one of the first damselflies to emerge each spring. Fragile Forktails are really tiny (about an inch (25 mm) in length, but are relatively easy to identify by their broken shoulder stripe that looks like an exclamation point.

In the final photo I was eye-to-eye with the damselfly so his abdomen is almost completely out of focus. Nonetheless enough details are visible for me to say this is almost certainly a male Eastern Forktail damselfly (Ischnura verticalis).

I like to try to vary my approach to capturing images of most subjects, including damselflies, as you can see in this little collection of photos. Sometimes, as in the first shot, I will try to isolate the subject from its background in order to focus the viewer’s complete attention on the subject. Recently, though, I have developed a preference for including more of the habitat in my shots, as in the second image, in order to give the viewer a sense of the environment in which I took the shot. When possible, I like to attempt to capture some “artsy” shots, like the final image, by using selective focus and choosing carefully my angle of view.

No matter what approach I choose with damselflies, I have to be careful not to fall into the water, where most of these dragonflies were perching. I am not always successful in keeping my feet dry.

Orange Bluet

Azure Bluet

Fragile Forktail

Eastern Forktail

© Michael Q. Powell. All rights reserved.

Read Full Post »

This female Eastern Pondhawk dragonfly (Erythemis simplicicollis) blended in so well with the vegetation that I almost missed seeing her yesterday at Occoquan Bay National Wildlife Refuge. Eastern Pondhawks are one of the most commonly seen dragonflies in my area during the summer, but this is the first one that I have seen so far this year.

I love the beautiful emerald color of female Eastern Pondhawks (as well as immature males of the species). They are not particularly large as dragonflies go, but they are very fierce predators. Several times each season I stumble upon Eastern Pondhawks gnawing on damselflies or other dragonflies that they have caught. Yikes!

Eastern Pondhawk

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

During the summer it seems like dragonflies are everywhere, perching prominently in plain sight in all kinds of environments, but this early in the season there are a whole lot fewer of them and the ones that are around are relatively hard to find. Last week, though, I was blessed to encounter quite a few Ashy Clubtail dragonflies (Phanogomphus lividus) while I was exploring a creek in Prince William County, Virginia.

The Dragonflies of Northern Virginia website, one of my favorite on-line dragonfly resources, described well the environment in which to find this species. “To find Ashies, look for clean, stable, rocky forest streams and then search out the closest sunny clearing, stream-side meadow or sunlit path. Like Common Whitetails and Blue Corporals, Ashy Clubtails prefer to perch flat on bare-soil, fallen logs, rocks or leaf litter.”

Most of the Ashy Clubtails that I spotted were in fact perched in the middle of the trails that I was following, like the one in the final photo. Although the dragonflies are sometimes skittish, it is relatively easy to get a photo of one, albeit with a fairly uninteresting background. The Ashy Clubtail in the first photo has a somewhat more interesting pose, with a nice shadow to add some visual interest.

My favorite photo of this little group, however, has to be the middle one. I really like the confrontational pose of the female Ashy Clubtail as she perched on a leaf and looked right at me. In case you are curious, the dragonflies in the first and second photos are females and the one in the final photo is the male. If you look carefully at the tips of their abdomens (their “tails”), you can see that only the males have terminal appendages that look like a sidewards-facing parenthesis and are quite distinctive.

Ashy Clubtail

Ashy Clubtail

Ashy Clubtail

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

On Monday I spotted this cool little butterfly at Occoquan Regional Park in nearby Lorton, Virginia. I was a little surprised to learn that it is a Falcate Orangetip butterfly ( (Anthocharis midea), given that the butterfly has not a single visible spot of orange. Apparently only the males have the orange tips for which the species is named and this one is a female.

When I first spotted this tiny butterfly flying about, I assumed that it was a Cabbage White. However, I quickly noticed the colored pattern on the outside of the wings and realized that my initial impression were wrong—Cabbage Whites are all white except for some black spots. When I looked even closer I noticed the butterfly’s gray eyes and scallop-edged wings, unlike the Cabbage Whites that have green eyes and more even-edged wings.

Falcate Orangetip

© Michael Q. Powell. All rights reserved.

Read Full Post »

When this little butterfly flew by me last week at Prince William Forest Park, it looked a bit like a nondescript brown moth. However, when it landed on the ground and I was able to zoom in on it, I was amazed by its variety of colors, textures, and markings. I was pretty sure that I had never seen one like this. When I returned home, I did some searching on the internet and concluded that this is a Henry’s Elfin butterfly (Callophrys henrici).

Every time I use the butterfly’s name, I smile, because there is just something whimsical about the word “elfin.” I love the idea of magical woodland creatures that blend in so well with their surroundings that you have to look carefully to spot them.

I encourage you to click on the image to see all of this creature’s wonderful markings, including the little white stripes on its antennae and legs and the beautiful scalloped edges of its wings.

Keep your eyes open today and you too may spot some magically whimsical creatures.

Henry's Elfin

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

A small group of Common Green Darner dragonflies (Anax junius) was active on Monday at Occoquan Regional Park, including a couple that, after mating, was depositing eggs in the floating vegetation. The male (the one with the blue abdomen) holds onto the female while she does the actual work and then they fly off together still attached in the “tandem” position to another patch of vegetation.

Common Green Darners are a migratory species and I suspect that these particular dragonflies were part of that migration. Most people are aware of the migratory pattern of Monarch butterflies, but are unaware of the fact that Common Green Darners follow a similar pattern. The Science News website provides a good overview of that migration.

“At least three generations make up the annual migration of common green darner dragonflies. The first generation emerges in the southern United States, Mexico and the Caribbean starting around February and flies north. There, those insects lay eggs and die, giving rise to a second generation that migrates south until late October. (Some in that second generation don’t fly south until the next year, after overwintering as nymphs.) A third generation, hatched in the south, overwinters there before laying eggs that will start the entire process over again.”

I was quite fortunate that the patches of vegetation where the dragonflies were depositing the eggs were relatively close to the edge of the pond, so I was able to capture the shots of the dragonflies in action. The second shot was one that I snapped as the couple zoomed by—long-time readers of my blog know that I love to try to capture images of dragonflies while they are flying.

The final image shows one a male Common Green Darner that was flying all around the small pond, searching for food or a mate (or maybe both). It is a fun challenge to try to track and photograph a dragonfly in flight and I felt a little rusty after spending the winter photographing birds. I was therefore quite thrilled when this shot turned out so well. Some newer mirrorless cameras have tracking systems that lock focus on moving subjects, but my trusty Canon 7D DSLR has 2009 technology, so it is a little trickier for me to get shots in—it is definitely a “hands-on” process.

Common Green Darner

Common Green Darner

Common Green Darner

Common Green Darner

© Michael Q. Powell. All rights reserved.

Read Full Post »

Most of the insects that I have observed feeding on Virginia Spring Beauty wildflowers (Claytonia virginica) have been equally small in size. I was a bit shocked, therefore, earlier this week to spot a large Eastern Carpenter Bee (Xylocopa virginica) gathering nectar and/or pollen from a small patch of Spring Beauties at Prince William Forest Park. The bee looked to be at least twice as large as each tiny flower. Wow!

The lighting was quite good and the bee was a bit distracted, so I was able to zoom in close and capture a lot of the details of the bee. I particularly like the speckled green eyes that look like they were carved out of a semiprecious stone. You can also see the bee’s tiny feet as it grasped the edges of the flower. I encourage you to click on the photos, especially the first one, to get a better look at the bee.

carpenter bee and spring beauty

carpenter bee and spring beauty

© Michael Q. Powell. All rights reserved.

Read Full Post »

I almost fell into the pond on Wednesday at Jackson Miles Abbott Wetland Refuge when I leaned over the edge of a steep bank after detecting some movement. Fortunately I did not lose my balance and managed to get a shot of this male Fragile Forktail (Ischnura posita), my first damselfly of this season.

Fragile Forktails are almost always the first damselflies in my area to emerge and are surprisingly easy to identify—they have broken shoulder stripes that look like exclamation points. Although they are easy to identify, you have to find them first and their diminutive size (0.83 to 1.14 inches (21 to 29mm) in length) makes them quite difficult to spot.

Damselflies and dragonflies belong to the Odonata order of flying insects. Damselflies generally are more slender, have eyes placed apart, and perch with their wings folded together along their bodies when at rest. Dragonflies tend to be bulkier, have large compound eyes that touch each other, and usually perch with their wings extended when at rest.

Fragile Forktail

© Michael Q. Powell. All rights reserved.

 

Read Full Post »

Many beetles are dark-colored and go about their business in the underbrush, unseen by human eyes. Six-spotted Tiger Beetles (Cicindela sexguttata), on the other hand, are hard to miss—their metallic-green bodies sparkle as they perch in the open, like this one that I spotted on Monday in the middle of a sun-lit forest trail in Prince William Forest Park.

The beetle’s common name refers to the six small white spots on the beetle’s metallic-green elytra (the beetle’s hardened wing cases), although the number of spots is somewhat variable. I think that I can see six spots on this beetle, but have sometimes seen as many as eight spots in the past.

As I was doing a bit of research a few years ago, I recall stumbling upon the fact that elytra is the plural form of elytron, following the the same pattern as “criterion” and its plural form “criteria.” For what it is worth, spell-check highlights elytron as an unknown word. English is a strange language.

Yesterday I came across this fun fact about tiger beetles at the University of Minnesota Department of Entomology website. “Tiger beetles’ long legs allow them to dart across the ground at high speeds. In fact, they can run so fast that their eyes can’t keep up, rendering them momentarily blind. This is why they only run short distances at a time.” Wow!

Six-spotted Tiger Beetle

© Michael Q. Powell. All rights reserved.

Read Full Post »

« Newer Posts - Older Posts »