- Author: Kathy Keatley Garvey
They don't announce their arrival or departure.
If you're an insect photographer, or a wanna-be-insect photographer, expect the unexpected and don't go anywhere without your camera.
That applies to such simple things as walking out your back door and stepping into your pollinator garden.
It was Friday morning, Oct. 12, and we watched a gust of wind stir the African blue basil, tousle the milkweed, and whip the 12-foot-high Mexican sunflower. "Ah, wind," I thought. "A good day for dragonflies."
As if on cue, a variegated meadowhawk dragonfly, Sympetrum corruptum, touched down on a bamboo stake, and looked right at me. I edged closer and "she" (gender identified by naturalist Greg Kareofelas, an associate with the Bohart Museum of Entomology, University of California, Davis) quickly left her perch.
I figured she would return and she did. Camera already raised, I slowly pointed my Nikon D800 with the 200mm macro lens and pressed the shutter. She left. She returned. She left. She returned.
A 'portrait studio' with the subject giving me "yes-no-maybe" answers.
In one view below, you can see the “bi-colored” Pterostigma on the wing tip and the two black spots on the top of the tip of the abdomen," noted Kareofelas. "This is unique to this species."
In another view, you can see the blurred image of a Mexican sunflower (Tithonia) forming a backdrop.
Insect photography takes patience, persistence and perseverance because these six-legged critters don't announce their arrival or their departure, not like at an airport or a train station.
But they are there. "At any time, it is estimated that there are some 10 quintillion (10,000,000,000,000,000,000) individual insects alive," according to the Smithsonian Institute. That's about 200 million insects for every human on the planet.
Your camera will find at least one of them at any given time of day.
- Author: Kathy Keatley Garvey
Watching it like a hawk...
A variegated meadowhawk dragonfly, Sympetrum corruptum, that is.
We look forward to breezes--even strong gusts--in our little pollinator garden in Vacaville, Calif., because often we'll see dragonflies touch down.
They'll hunt, perch, and hunt again. The wind threatens to dismount them but they hang tight.
Such was the case on Sept. 28, a time between summer and fall. Clouds parted, the sun burst through, and the Mexican sunflowers (Tithonia) and blue spike salvia (Savlia uliginosa) swayed in the breeze.
This dragonfly swayed, too. But the wind did not defeat it. Not this "hawk."
Variegated meadowhawks live near ponds, lakes, and swamps--and if you're lucky, they'll visit your back yard. They are largely tan or gray with a pale face that is tan in young males and females but becomes red in mature males, according to OdonataCentral.org. They're found throughout the United States and southern Canada; also Mexico south to Belize and Honduras. "This species may be seen on the ground more than other meadowhawks. It will also readily perch on the tips of grass stems and tree branches. It can be numerous flying over roads, lawns, meadows, marshes and ponds...It is largely tan or gray with a pale face that is tan in young males and females but becomes red in mature males."
Interested in dragonflies? The Bohart Museum of Entomology at the University of California, Davis (located in Room 1124 of the Academic Surge building on Crocker Lane) offers a beautiful dragonfly poster, "Dragonflies of California," in its gift shop. It's the work of entomologist Fran Keller (she received her doctorate in entomology from UC Davis and is now an assistant professor at Folsom Lake College) and naturalist-photographer Greg Kareofelas, a Bohart associate whose expertise includes butterflies and dragonflies.
- Author: Kathy Keatley Garvey
So there they were, literally dozens of dragonflies flying around two separate Vacaville (Calif.) yards, feasting on swirling clouds of prey (gnatlike insects) and then touching down on blades of grass or fence posts.
They proved as elusive as a celebrities attempting to avoid a paparazzi.
Dragonflies, but what species?
Bohart Museum of Entomology associate Greg Kareofelas of Davis identified them as variegated meadowhawks, Sympetrum corruptum. "Notice how the pterostigma is two-toned," he said. "That is the only dragon with that, also the two black spots at the end of the tail. They kind of migrate--or maybe mass dispersal is a better name. A bunch can show up if there is something to eat, then the whole gaggle moves on."
The pterostigma cell, located in the outer wing of insects, is often thickened or colored and so it stands out from other cells, according to Wikipedia. It is particularly noticeable in dragonflies, but is also present in other insect groups, such as snakeflies, hymenopterans and megalopterans.
"The male is commonly dark brownish black with an abdomen of bright red, pink, and golden brown," Wikipedia relates. "The thorax may be marked with a pair of yellow dots on each side. The leading edges of the wings are marked with pinkish. The females are similar in color but not as brightly colored, with gray and yellow replacing the red of the male. Young variegated meadowhawks are much paler and mottled with pale green, pale yellow, golden brown, and orange."
According to Odonata Central, "this species may be seen on the ground more than other meadowhawks. It will also readily perch on the tips of grass stems and tree branches. It can be numerous flying over roads, lawns, meadows, marshes and ponds...Mating occurs while perched on twigs, stems or other vegetation. Females lay eggs accompanied by males in the open water of ponds and lakes. Mass movements of this species have been reported on several occasions."
The variegated meadowhawk, native to North America, belongs to the family, Libellulidae. They're found throughout the United States and southern Canada, according to Odonato Central. "Also, Mexico south to Belize and Honduras."
Coming soon to a yard near you?
- Author: Kathy Keatley Garvey
A perfect perch.
A young male variegated meadowhawk dragonfly, Sympetrum corruptum, found a perfect perch--a seed ball of Mexican sunflower (Tithonia) in our pollinator garden in Vacaville, Calif.
It towered over the garden and so did he.
Naturalist Greg Kareofelas, Bohart Museum of Entomology associate, University of California, Davis, has been seeing and photographing some of these migrating dragonflies in his yard in Davis as well.
"Evidently, there was a big migration of lots of these dragonflies south of San Francisco," Kareofelas noted in his Facebook post.
And apparently thousands have been spotted at Half Moon Bay. Dragonfly alert!
Variegated meadowhawks live near ponds, lakes, and swamps. They are largely tan or gray with a pale face that is tan in young males and females but becomes red in mature males, according to Odonatacentral.org. They're found throughout the United States and southern Canada; also Mexico south to Belize and Honduras. "This species may be seen on the ground more than other meadowhawks. It will also readily perch on the tips of grass stems and tree branches. It can be numerous flying over roads, lawns, meadows, marshes and ponds...It is largely tan or gray with a pale face that is tan in young males and females but becomes red in mature males."
The Bohart Museum, located in Room 1124 of the Academic Surge building on Crocker Lane, offers a beautiful dragonfly poster, "Dragonflies of California," in its gift shop. It's the work of entomologist Fran Keller (she received her doctorate in entomology from UC Davis and is now an assistant professor at Folsom Lake College) and Kareofelas, whose expertise includes butterflies and dragonflies.