Brood X will emerge in 2021, and people will want to travel to see and hear them. Should you decide to travel to witness Brood X or any cicada emergence in the U.S., be cautious and considerate of the following:
Be respectful of private property
Periodical cicadas thrive in neighborhoods and campuses with old hardwood trees and grass lawns, as you’ll find in places like Princeton, New Jersey. Don’t traipse and trample onto private property without permission and always visit local parks, instead of neighborhoods, when possible.
Observe local laws and customs
This should go without saying: obey local laws. Do not: litter, trespass, speed, j-walk, etc. Don’t give cicada fans a bad name.
Be prepared to practice social distancing and to wear a mask, even if just as a courtesy. I noticed that even outdoors in public parks, people in New Jersey wear masks.
Do not bring Spotted Lanternflies home with you
Spotted Lanternflies are true bugs, just like cicadas, but they are very, very destructive pests and an “invasive species”. Like the Pennsylvania Department of Agriculture website says, they “cause serious damage including oozing sap, wilting, leaf curling, and dieback in trees, vines, crops and many other types of plants”! They kill the trees cicadas call home.
Pennsylvania and western New Jersey are loaded with Spotted Lanternflies, so if you travel to those states to see Brood X cicadas, make sure you check your vehicle and belongings for Lanternfly hitchhikers. Don’t bring them home with you. At this time of year, I believe they are still in their black phase.

This sign is downloadable from the USDA website.
And squash them all — for the good of the forest and cicadas.
More info at the USDA website.
Protect yourself from ticks
Long Island (NY), New Jersey, Pennsylvania, and nearby states are loaded with Lyme Disease carrying Blacklegged/Deer Ticks. I’ve known people who have Lyme Disease and it practically ruined their lives. Unfortunately, ticks are found in the same areas as cicadas, like parks, yards, and forests. The CDC website has tips for preventing tick bites on people that I highly recommend you read and follow their tips. I personally wear pyrethrum-treated clothes when outdoors in New Jersey.
From the CSC.gov website:

Cicadas, Social Media and Community Science
Want to meet other cicada fans, help with cicada science projects, or simply check out cicada photos, images, or video? Try these projects and links.
Connect to Cicada Mania
Cicadas @ UCONN (formerly Magicicada.org) Mapping Project
In 2014, contribute your Magicicada/Periodical/17 & 13 Year cicada sightings to Cicadas @ UCONN (formerly Magicicada.org). They will add your report to their Google map.
→ Cicadas @ UCONN (formerly Magicicada.org)
Citizen Science Projects
Want to participate in a cicada community science project? Check out the cicada science projects on Cicada Central. There is the The Simon Lab Nymph Tracking Project and a Magicicada Biology Class Exercise.
If you are in Ohio or Kentucky and spot a periodical cicada this year (2014), send a geo-tagged cellphone photo to Gene Kritsky.
Your Wild Life wants your dead cicadas! They will use them to study the effects of urbanization (pollution, etc.) on the cicadas.
Discuss cicadas on Twitter
Use hash tags like #cicadas for general cicada issues. Use @cicadamania to get my attention.
→ Cicada Mania on Twitter
Discuss cicadas on Facebook
Once you’re done reporting your cicada sighting to magicicada.org, head over to Facebook to discuss your cicada experiences.
→ Cicada Mania Discussion Board on Facebook
Discuss cicadas with cicada experts
If you’re serious about cicadas, try the Entomology Cicadidae Yahoo group.
→ Entomology Cicadidae Yahoo group
Share your cicada photos, sounds and videos
Share your cicada photos and videos with the world:
→ Cicada Photos Group on Flickr
→ Cicadas on Pinterest (note, there’s no guarantee just photos of cicadas will show up)
→ Search Instagram photos for cicadas (note, there’s no guarantee just photos of cicadas will show up)
Cicada Mania Videos and Audio:
→ Cicada Mania on Vimeo
→ Cicada Mania YouTube
Update:
If you want to tag a species, you can use what’s called a “machine tag” or “triple tag” (see Wikipedia article on Tags).
taxonomy:binomial=Magicicada tredecim
taxonomy:binomial=Magicicada neotredecim
taxonomy:binomial=Magicicada tredecassini
taxonomy:binomial=Magicicada tredecula
If you’re tagging on sites that use spaces instead of commas (like flickr) put them in quotes when you enter them.