Sorry, This Blossom Is Taken

So here's this male longhorned bee (Svastra) sipping a little nectar from a Mexican sunflower (Tithonia).

As the late Mr. Rogers (1928-2003), star of the TV show, "Mister Rogers' Neighborhood," so often proclaimed:  "It's a beautiful day in the neighborhood."

And here I "bee," admiring and photographing the bees on the reddish-orange blossoms on July 13 in our little pollinator garden.

It's a beautiful day in the neighborhood
A beautiful day for a neighbor
Could you be mine?
Would you be mine?

Yes, it's a beautiful day in the neighborhood, but wait--what's that?

Another male longhorned bee, fast as the proverbial speeding bullet, dive-bombs my little buddy.  Both are male Svastra--territorial males--as identified by Robbin Thorp, distinguished emeritus professor of entomology at the University of California, Davis. He's the co-author of California Bees and Blooms: A Guide for Gardeners and Naturalists (along with UC-affiliated colleagues Gordon Frankie, Rollin E. Coville and Barbara Ertter), a must for everyone who wants to learn about bees and blooms. A noted authority on bees, Thorp annually teaches at The Bee Course, a nine-day intensive workshop affiliated with the American Museum of Natural History and held at the Southwestern Research Station in Portal, Ariz. To be held Aug. 20-30, it is offered "for conservation biologists, pollination ecologists, and other biologists who want to gain greater knowledge of the systematics and biology of bees."  He's served as one of the instructors since 2002.

So, what happened to the male Svastra occupying the blossom?

Nothing. The occupier kept occupying and the dive-bomber quit dive-bombing.

I have always wanted to have a neighbor just like you
I've always wanted to live in a neighborhood with you

(This image was taken with a Nikon D500, with a 105mm macro lens and a fast shutter speed of 1/3200 of a second. Other settings:  f-stop, 7.1, and ISO 1600.)