It's possible to find out the species of cicadas just by looking at these shells. (nookipedia.com)
There are seven species of periodical cicadas in North America, four bound to a 13 - year cycle, three in a 17 - year cycle. (scientificamerican.com)
Besides, new high - end travel suppliers including luxury lodges such as Cicada Lodge in Australia, Minaret Station in New Zealand (accessible only by helicopter) and Pikaia Lodge - a five star eco-lodge set in the crater of an extinct volcano in The Galapagos Islands are also attending this year's fest. (indianluxurytrains.com)