Insect and Spider Identification: Swarm of small flies around my Hoya flowers, 2 by lamerto

lamerto wrote:
I took my Hoya outside to get some sun, as I do it every couple of days. Today, I saw a swarm of small flies, or what I think are flies, all around the plants, and specially the flowers.

What kind of insect is this? I don't think these are fungus gnats, although they are about the same size. I took a picture with a macro lens and a reference one with them on the flower. They are less than about 1mm in size!