Hi there! I’m Laura and new to this site.
Can anyone recognize the bugs that are chirping by their sounds? Maybe some crickets in the evening, but during the day time, there’s a loud sounding bug that sounds like an alien invasion or UFO landing. Seems like all of these sounds are pretty seasonal too.
I might have some insight into the ‘hovering’ sound…
First of all, I’m happy to report we have a very healthy population of bees and wasps in Pioneertown 
On my property, these beneficial insects seem to be most active in the early morning and evening.
I occasionally hear an unsettling humming or buzzing sound near plants with a large number of flowers.
The sound is somewhat akin to what I’d imagine a UFO landing sounds like 
This spring, I saw a swarm moving into their new hive. I had thought it was a hovering drone until i spotted them!
Early in the year the sound is probably due to pollinating bees - though in the late summer it’s more likely to be wasps feeding on plant sugars.
Thanks for the insight, Matt! Yes, I do notice all the great pollinators we have around.
So I actually went down a rabbit hole looking into this, and it turns out what I was hearing are cicadas, specifically Cactus Dodgers.
“The cicada falls into one of two major groups, one called “dog day,” the other called “periodical.” The dog-day cicadas, which usually appear during the hottest days of summer, hence the name, include all of the several dozen species of the Southwest. They have a life cycle of two to five years. The better known include the Apache cicada, marked by a tan band around the back of its head, and the cactus dodger, noted for the male’s frenzied courtship behavior among the desert’s prickly pear and cholla cacti.” From Desert USA