From: wiki, reference: Brood V
"densities in some locales reaching 1.5 million per acre, trillions of individuals are expected to emerge"

They did, and how.

From appx may 21st to june 29th the little hordlings filled the trees, skys, fields and woods.

I only saw dead ones on my hike today.
I feel sad.

Click for extra pix:

Emerging:



Gathering:



On the hand of the master:



I came back just in time for this amazing event.

Sound sample

Who knows what the internet will be when they emerge again in 17 years?