nonluminous firefly hatched from larva.
First two photos by E. Nash.
20 Jun 2016.
Buckingham Springs, Bucks Co, PA.
Found on Phalaris arundinacea.
ID confirmed by Blaine Mathison.
Lampyridae is a family of insects in the beetle order Coleoptera. They are winged beetles, and commonly called fireflies or lightning bugs for their conspicuous crepuscular use of bioluminescence to attract mates or prey. Fireflies produce a "cold light", with no infrared or ultraviolet frequencies. This chemically produced light from the lower abdomen may be yellow, green, or pale red, with wavelengths from 510 to 670 nanometers.