Fireflies Light Up a Meadow Near Buenos Aires

December 31, 2015

Fireflies_bichos de luz (1)

Photographer: Sergio Emilio Montúfar Codoñer
Summary Authors: Sergio Emilio Montúfar Codoñer; Jim Foster

The photo above shows a field of fireflies observed not long after sunset near Buenos Aires, Argentina. In the mid-latitudes of both hemispheres fireflies or lightning bugs (Family Lampyridae) emerge in twilight during late spring and early summer. They use bioluminescence, emitting light in the 510-670 nm (yellow) portion of the visible spectrum, to attract mates and or sustenance. As night wears on, these fireflies will fly higher, leaving the cover of their grassy, daytime hideaway. Photo taken on December 13, 2015.

Photo Details: Camera Maker: SONY; Camera Model: ILCE-7; Lens: FE 28-70mm F3.5-5.6 OSS; Focal Length: 50mm (35mm equivalent: 50mm); Aperture: ƒ/4.5; Exposure Time: 1.300 s; ISO equiv: 6400; Software: Adobe Photoshop CC 2015 (Windows).