Thank you Shannon. It sounds like you're going to find all kinds of surprises at your new home. I love finding the plant surprises!
Dirt, that's all very interesting. I'm like you in that I don't want to poison my other insect friends. I will look for this fly & listen. Thanks for describing the way they sound and the flying straight up when startled.
Hmmmmmmmm...... I have found pure, undiluted alcohol to kill insects. I use it for my "bug spray" since I discovered how great it is. Even kills roaches. I keep a spray bottle filled with it. You could tote the spray bottle around with you out in the garden - set the spray to a broad pattern & when you see them, even flying, zap them good with the alcohol. I've used it on plants even & it hasn't harmed a plant yet. I used it on some Phal orchids including the open blooms & it didn't hurt them one bit.