At this point in the 2013 Brood II emergence, all the cicadas that will emerge, have emerged. I’m sorry to say that if periodical cicadas have not emerged in your yard/neighborhood/town, they won’t. This is frustrating for people who heard that the cicadas would emerge in their state, or those who looked at a brood map and assumed their neighborhood fell within the area shown on the map.
People in Pennsylvania, for example, heard that cicadas would arrive in their state, but unfortunately, the cicadas only occupy a small banana-shaped region in the east of the state:
If you look at one of the older maps for Brood II, it looks like the state of New Jersey is covered, however, each dot might represent only one sighing in one specific area. These old maps are useful, but they can be misleading (more on maps later in this article).
Back in 2004, after Brood X emerged, I wrote an article called: What Happened: the Magicicada No-Show of 2004. The information in that article is relevant for Brood II as well.
The truth is periodical cicadas do not occupy every square acre of a state in which they are expected to emerge. Even in towns where they do emerge, they are rarely present in every acre or block of those towns. Why? Well, either they were eliminated in the areas where they once were found (due to urban sprawl, pesticides, weather-related events, etc), or they simply were never there in the first place. New threats like extreme weather (flooding and tree destruction by tropical storms) and tree-destroying invasive species (like the emerald ash borer) will continue to shrink cicada habitat areas.
It is important, for future emergences, that the press/media and cicada websites provide more accurate information about the location of the cicadas. The cicada sighting information people provide to Magicicada.org is very important because it will lead to better maps and more accurate sighting information.
One thing I’m glad that I did this year was provide a page that listed specific towns in New Jersey where cicadas could be expected. I wish I did one for every state in the Brood II area [but Cicada Mania is not my day job, and there are only so many hours in a day].
That said, we never want to discourage people from looking for periodical cicadas in areas we don’t expect them to exist. Last year unexpected Brood I cicadas emerged in Tennessee. This year periodical cicadas unexpectedly emerged in Oklahoma. A lot of us where hoping cicadas would show up in Central Park in Manhattan, but they didn’t (however, I didn’t personally walk every acre of the park).
So, what can you do to help?
- If you’re a member of the press/media (yes that includes bloggers and tweeters), make sure you get precise locations from cicada experts.
- Report cicada and flagging sightings to Magicicada.org so we have better records of the emergence.
- Help cicada research by participating in a cicada community science project.
- Help preserve the current cicada habitat. Preserve trees. Avoid pesticides. Don’t wipe out another forest to add yet another redundant giant store.
A consolation for people who missed out on the 17 year cicadas: there are about 160 species of annual cicadas in North America. They’re usually harder to find and catch, but you can still hear and capture them if you put some time and effort into it.