The Princeton Battlefield (historical location of one of George Washington’s battles) has always been a great place to find Brood X periodical cicadas.
Here are a few photos I took last weekend:
A female Magicicada septendecim with white eyes & costal wing margin mating:

A female Magicicada septendecim with white eyes & costal wing margin:

Magicicada with beige eyes:

Many, many exit holes:

Triple exit holes in mud (kinda looks like a skull):

Egg nests carved into branches by the cicadas ovipositor:
