small black dots on blooms

[jrodpad]

I'm a bit embarrassed to post this - but I went away for the weekend and when I returned the house had a few dozen flies buzzing around. Gross! Something must have spoiled and given the heat in the Northeast, the little buggers didn't waste any time.

After a few rounds with the flyswatter and some well placed sticky-paper, there are no more flies. But I did notice that a few of my phal blooms and a phrag bloom have little black dots on them about the size of a period printed in 12pt font. When I tried to scrape them off with a finger nail, I had success about 2/3 of the time. Could these be from the flies? If so, what the heck are they? If not, what the heck are they!

Love to know your thoughts.

As always, thanks!

- J