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black and orange Firefly - Ellychnia corrusca

black and orange Firefly - Ellychnia corrusca
Fort Bragg, Cumberland County, North Carolina, USA
April 30, 2004

Moved from Diurnal Fireflies. In the E. corrusca complex.

Pretty sure this is a species of Ellychnia. Adults are non-luminescent and usually day-active.

luminescence question
In adult fireflies that are non-luminescent, what happens to their light-producing organ? Does it disappear as an adult (through atrophy and/or being resorbed by the body) or does it retain its normal size/shape/color and simply become non-functional? A PDF doc here says all Lampyridae larvae are luminescent; maybe the various species & genera that are non-luminescent as adults lose their luminescence in various ways?

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