Last Thursday Roy Troutman, Elias Bonaros and I traveled around central New Jersey, looking for cicadas. They were not hard to find. Elias found a location in Colonia that had a particularly loud Magicicada cassini chorusing center. Using my camera and Extech 407730 40-to-130-Decibel Digital Sound Level Meter, I recorded the calls of these cicadas and how loud they can get. The quality of the video isn’t the best because it’s a camera, not a video camera, but it is good enough.
Magicicada cassini chorusing center peaking at 85db (on Vimeo):
The Okanagana rimosa, also known as Say’s Cicada, is a cicada that can be found in the USA in northern states east of the Rockies, like New York, Pennsylvania, Michigan, Wisconsin, Minnesota, North Dakota and all New England states. Say’s cicada can also be found in the Quebec, Ontario, and Manitoba provinces of Canada.
Say’s Cicada is black and orange; orange legs, orange markings on its mesonotum, and orange bands around most segments of its body. Here’s a photo of an adult:
An interesting note about the Okanagana rimosa, it has been showed to have a 9 year life cycle, and appears to be protoperiodical:
“Soper et al (112) showed experimentally that Okanagana rimosa had a life
cycle of 9 years, and that in the field during a 9-year period (1962 to
1970) it was extremely abundant in 4 years and scarce or absent in the
other 5. Heath (32) also studied cicadas of the genus Okanagana and
found several species that appear to be protoperiodical.”