Henrietta, our Stagmomantis limbata praying mantis, perches on a Mexican sunflower (Tithonia).
She is as patient as she is persistent.
The drone fly, aka syrphid and also known as a hover fly or flower fly, makes the fatal mistake of touching down on the same blossom.
Henrietta eyes it hungrily. Faster than a blink of the eye, she snares it, clutching it between her spiked forelegs.
"Well, of course, I like drone flies," she appears to be saying, between mouthfuls. "Thank you for asking."
Praying mantids are not known for their table manners. It's grab, hold and eat.
The cycle of life in the garden.
The Frit and the fly...or the butterfly and the fly...
That would be the Gulf Fritillary (Agraulis vanillae) and the syrphid fly (family Syrphidae), aka flower fly or hover fly.
They meet on a beautiful autumn day on an equally beautiful Mexican sunflower (Tithonia rotundifolia). The season is winding down.
"I was here first!" the Gulf Frit proclaims.
"I was here second!" the fly says.
The yellow-and-black striped fly, masquerading as a bee, is determined to sip some nectar. It edges closer and closer.
The newly eclosed butterfly simply wants to dry its wings before taking off.
The fly is more persistent. And more hungry.
The fly brushes the butterfly. The butterfly takes flight.
Score: Fly: 1; Butterfly, 0.
You've heard of "musical chairs," that anxiety-driven elimination game involving chairs, music and players. When the music stops and a chair is eliminated, the players race for the remaining seats. No one wants to be the first loser.
Well, insects, too, play "musical chairs," but with flowers as chairs. The music: the flapping or buzzing of insect wings.
Such was the case this week as two syrphid flies, aka hover flies or flower flies, kept jockeying for the same Mexican sunflower blossom (Tithonia rotundifolia).
It was a close contest between the black hover fly or Mexican cactus fly (Copestylum mexicanum) and the hover fly (probably Eristalis tenax), which is often mistaken for a honey bee. Neither wanted to be the first loser.
Who won? Neither. They abandoned the "fight" and took flight, each heading for a different blossom to forage for more nectar and pollen.
Life is like that.
So, here I am, an Asian lady beetle (Harmonia axyridis) perched on a rose bush in Vacaville, Calif., as dawn breaks. I'm eating aphids and minding my own beetle business, which consists of gobbling aphids and more aphids. And more aphids. Did I say more aphids? More aphids.
Wait, what's that? Something is heading straight toward me, its wings are flapping like crazy. Hey, I was here first. Go away!
Whoa, what are you doing? You've landed and you're licking me. What do you think I am, a honey stick?
That's what happened during a backyard encounter with an Asian lady beetle and a large syrphid fly. The fly, identified by senior insect biosystematist Martin Hauser of the Plant Pest Diagnostic Branch, California Department of Food and Agriculture, is a female Scaeva pyrastri.
Hauser and Lynn Kimsey, director of the Bohart Museum of Entomology and professor of entomology at UC Davis, agreed that the syrphid fly is "going after honeydew on the beetle's head." Honeydew is a sugary, sticky liquid that aphids secrete when they're feeding on plant juices.
"The beetle was full of honeydew from feasting on aphids," Hauser noted, "and that is what the fly was after."
Everybody eats in the pollinator garden.
Maybe not at the same time, but they all eat.
We noticed a syrphid fly, aka flower fly/hover fly, heading toward a Mexican sunflower (Tithonia) in our pollinator garden. Alas for the fly, it was occupied. Occupied by a honey bee (Apis mellifera).
The honey bee soon buzzed off, and the syrphid claimed it.
The honey bee returned and took a turn.
Then another fly, a drone fly (Eristallis tenax), claimed it.
Interesting that all three are sometimes called "bees," much to the chagrin of entomologists and other scientists. It just goes to prove that not all floral visitors are flies.
- Honey bee: Order, Hymenoptera; Family Apidae
- Syrphid fly: Order, Diptera; Family Syrphidae
- Drone fly: Order, Diptera; Family Syrphidae
But they do have several things in common: (1) they're insects (2) they're pollinators (3) they're hungry and (4) they like nectar just as much as humans like sugar, especially on Halloween. And doesn't orange symbolize Halloween?