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Showing posts with label odonate. Show all posts
Showing posts with label odonate. Show all posts

Friday, April 17, 2026

Shiny and new

  

The beautiful wings of a California Darner (Rionaeschna californica).  Note how shiny and new they look.  [You can click on the image for a larger version.]  I could see this darner's wings glittering in the sun as it flew across a grassland.  When it landed nearby, I leaned in for a closer view.  Because the wings are so fresh, it's likely this individual metamorphosed recently.  Once a dragonfly has been flying for a while, the wings lose their shine and can show nicks and other impacts.

Monday, December 1, 2025

December dragon

  

Air temperatures reached the mid-high 50's today, but the afternoon sun was warm enough to activate this dragonfly.  It zipped into our backyard and landed on one of the remaining hot peppers in the garden.

Variegated Meadowhawk (Sympetrum corruptum) photographed in Cotati on 1 December 2025.  

With many thanks to Eric for the great photo!

Sunday, June 8, 2025

Overhead

  

Nice to see a Black Saddlebags (Tramea lacerata) over our backyard this afternoon (8 June 2025). 

Sunday, May 4, 2025

Satyrs and dragons

  

 Satyr Anglewing (Polygonia satyrus)

 

 
Close-up of a California Darner (Rhionaeschna californica)
 
Both photos from Cotati on 4 May 2025
 

Thursday, November 28, 2024

Frosty moon and fall dragon

  

Started the day with frost and morning fog and a beautiful crescent moon...

...and in the afternoon we noticed a Variegated Meadowhawk (Sympetrum corruptum) sunning in our backyard.  In Cotati, air temperatures reached the 60-65°F range today (28 November 2024).

 

Monday, July 29, 2024

Gliding in

  

Small swarms of these dragonflies have been visible for several days now, but I've mostly seen them zipping around, chasing small insect prey.  Today I finally caught up with one perched, so here you go  a nice view of a Spot-winged Glider (Pantala hymenaea).  The spots can be subtle, but look for the dark brown patches along the inside edge of each hind wing.  [You can click on the image for a larger version.]

Although fewer in number, there have also been some Wandering Gliders (Pantala flavescens) in the mix.  I didn't seen one perched, but here's a Wandering Glider in flight (below).  Note the more golden coloration (rather than looking reddish brown in flight), and the lack of a dark spot along the inside edge of the hind wing:

 
Both species are known as long-distance dispersers, and summer is a great time of year to watch for them, especially after warm conditions.

Thursday, June 20, 2024

Summertime

  

I've been behind a desk a lot lately, so here's a photo from last month -- a beautiful Blue-eyed Darner (Rhionaeschna multicolor) perched in our backyard on 27 May 2024.  The grayish eyes on this individual probably indicate a younger male.

At least some species of dragonflies can be observed across a broad portion of the year in Sonoma County, but along the coast I think of summer as prime time to watch for them.

Happy Summer Solstice!  :)

Wednesday, October 4, 2023

Dragonfly movement at the coast

 
I was away at a meeting this week, but Eric was in Bodega Bay and observed a significant movement of dragonflies (and some butterflies) along the coast today (4 October 2023).  He caught and photographed a couple of them to document which species were involved.
 
Pictured above is a male Variegated Meadowhawk (Sympetrum corruptum).  Below is an example of a female:
 
 
Eric counted ~40 dragonflies/minute flying south along the outer coast of Bodega Head at ~10:45 a.m.  I was curious about the weather conditions at the time.  I knew it had been warm, but I didn't know how warm!
 
There are several weather stations on Bodega Head.  I checked the first and didn't believe my eyes because it had peaked at ~87°F (~30°C) today.  So I checked a second and it also read ~87°F!  Then to be sure I checked a third (and the one I generally consider the most accurate) and it peaked at ~85°F (~29°C).  Amazing!  Air temperatures that high are quite rare on Bodega Head.
 
There was also an unusual spike in air temperature this morning.  It started out in the 50s this morning, but then rose steadily to 70°F at 10 a.m. and continued to rise significantly until reaching ~85°F at noontime.  Then it plummeted back to ~70°F for the rest of the afternoon.  (The wind direction also changed with the temperature pattern, from north/northeast then veering to west.)
 
More hot temperatures are expected tomorrow, so it'll be interesting to see if there are more movements of insects at the coast.

Sunday, October 16, 2022

On the surface

 
Female darner (possibly a Blue-eyed Darner, Rhionaeschna multicolor) ovipositing in tule stems lying on the surface of the water.  Photographed in Petaluma on 16 October 2022.

Monday, September 26, 2022

An unusual ending

  

I took a short walk in Walpole, MA, today (26 September 2022).  I ended up at a small pond and started noticing a few interesting animals in the warm afternoon sun (more on that later).  I was taking photographs and noticed a dragonfly a bit further away along the shoreline.  It was a female ovipositing (laying eggs), so it was in the same area long enough for me to snap a few distant photos.  

When I finished photographing the first subject, I decided to take a quick look for the dragonfly as I wasn't certain which species it was.  I was scanning for a dragonfly in flight and wasn't having any luck when I noticed a fluttering movement near the ground.  I looked down to see this:

 
I couldn't believe it, but the dragonfly had been caught by a Bull Frog (Lithobates catesbeianus)!
 
And amazingly it looked like this was a Great Blue Skimmer (Libellula vibrans), a dragonfly that used to be rare when I last lived in Massachusetts.  It sounds like Great Blue Skimmers (a southern species) have become more common in Massachusetts during the last 18 years, but they are still infrequently encountered.
 
Here are a couple of different angles:
 
 

 
P.S.  Many thanks to Blair for helping to confirm the dragonfly identification and the current status of Great Blue Skimmers in Massachusetts.

Sunday, August 22, 2021

Darners in the dunes

  

Arriving at the coast in the early afternoon, Eric spotted a number of dragonflies cruising back and forth along a dune ridge.  I went back to check on which species it was.  They were primarily Common Green Darners (Anax junius), but there were a few Spot-winged Gliders (Pantala hymenaea) and Black Saddlebags (Tramea lacerata), too.  

Although this is the time of year when we can see dragonflies moving along the coast, I'm not sure what triggered this particular movement.  It didn't seem that warm and I can see in the air temperature records that the maximum temperature this afternoon was ~66°F (19°C). Winds were relatively light today, out of the southwest this morning, becoming northwest later in the day.  Maybe the dragonflies were triggered by conditions elsewhere that aren't as apparent in Bodega Bay.

Monday, January 18, 2021

January dragon

 
There were record-breaking high air temperatures for this date (18 January 2021).  I'm seeing slightly different numbers from several meteorological stations in Bodega Bay, but it looks like air temperatures reached between 68-72°F (20-22°C) on the coast today.
 
Because of the warm temperatures, after some morning tasks I decided to take a quick look for butterflies near the Bodega Dunes Campground where it tends to be calm and warm on days like this.  I struck out with butterflies, but I spotted one Variegated Meadowhawk (Sympetrum corruptum) perched along the trail.
 

Sunday, September 13, 2020

Ashes on her eyes

Late this afternoon I was walking by a wall that I pass by regularly when something caught my eye.   A large dragonfly was perched there, so I approached for a closer view:

 
 
As I moved closer, I noticed little white flecks here and there, and wondered if they might be ash.  You can see them on the green thorax and on the dark brown eyes:

 
Well, I couldn't tell for sure if the flecks were ash, but they look like the ash that's on our car right now.  This is a Common Green Darner (Anax junius), photographed on 13 September 2020.
 

Saturday, July 25, 2020

Dragons in the afternoon

We're having trouble accessing the Internet tonight, but I'm going to try to post a few quick dragonfly shots from this afternoon (25 July 2020):


Ovipositing darner (Blue-eyed Darner?)
Haven't had a chance to check yet.



 Western Pondhawk (Erythemis collocata)



Wandering Glider (Pantala flavescens)



Spot-winged Glider (Pantala hymenaea)

Tuesday, July 14, 2020

Backyard dragon


A nice female Flame Skimmer (Libellula saturata) paused briefly in our backyard this evening.

Here's a close-up view of the impressive insect-catching spines on her legs:


Photographed in Cotati on 14 July 2020.
 

Saturday, July 4, 2020

Wandering


Wandering Glider (Pantala flavescens), Bodega Head, 4 July 2020
 

Sunday, September 1, 2019

Saddles overhead


We were getting ready to do some grilling in the backyard tonight when Eric looked up to see a dragonfly cruising around overhead.  Then a second dragonfly appeared.

We don't see Black Saddlebags (Tramea lacerata) in our yard very often, but they're known for moving long distances when dispersing.

Watching them overhead provided great views of the "saddles," the large black patches at the base of the hindwings.


Thursday, August 15, 2019

First of the season


With the heat, come the dragons.  It was warm today (15 August 2019).  At the coast, air temperatures reached ~71°F (~22°C).  With these late summer conditions, we often see more insects at the coast.  I noticed a few Common Green Darners (Anax junius) on Bodega Head this afternoon, the first of the season for me.

Saturday, May 11, 2019

Jewels, streaks, petals, and rocks

I felt lucky to join a LandPaths' hike to The Cedars (near Cazadero) today (11 May 2019).  Lots of wonderful scenery and observations...and many photos to sort through.  Here's a previewjust a few pictures that caught my eye on the first time through the photos.


Hoffman's Jewelflower (Streptanthus glandulosus ssp. hoffmanii)




Muir's Hairstreak (Callophrys muiri)




Black Petaltail (Tanypteryx hageni)




Rock Wren (Salpinctes obsoletus)a distant photo, but this is my first Rock Wren photo from Sonoma County.  It was singing at the top of an open rocky ridge.

P.S.  I first went to The Cedars in April 2015.  If you'd like to review some of those photos, you can start with the post called "Among the rocks" on 25 April 2015 and continue forward until 1 May 2015.
 

Saturday, September 22, 2018

A green-eyed welcome!

What a nice welcome to Massachusetts!  This is one of my favorite groups of dragonflies.  A beautiful Clamp-tipped Emerald (Somatochlora tenebrosa):


I'm on way out "out-the-door," so I don't have time to figure out which species this is yet (but now updated above and below).  But here are a couple of close-ups in case someone wants to help me with the i.d.

A close-up of the eyes and the thoracic markings:



And the terminal appendages, which are pretty impressive!



(P.S. I'll have intermittent Internet access this week, but I'll post when I can!)

ADDENDUM (25 September 2018): Just back with Internet access today.  A couple of nights ago I woke up in the middle of the night with the word "tenebrosa" in my head.  I haven't had to identify emeralds since moving to California, but my brain must have retained enough to work its way (slowly) to the identification of this dragonfly.  I've updated the name at the top of this post.