Invasion of the Grillidae!

So has anyone seen anything like this?

It may be a little hard to view, but what you’re seeing is a swarm of crickets climbing the west wall of our house.  By nightfall they were all clumped in a black mass beneath the eaves.  Now, a couple days later, they’re mostly still there.

Since it had rained all the previous day, I thought maybe they were trying to climb above the flood waters, but the flood waters were no longer there.

I kept yelling at them, “Hey!  Halloween is next week!”  But they didn’t listen.

Maybe some of you more cognizant of the wonders of nature know what’s going on.