Species · GBIF taxon 1162860
Blue Ghost Firefly
Phausis reticulataAlso known as Blue Ghost
Blue ghost fireflies cast an eerie, continuous blue-white glow that floats just inches above the dark forest floor during late spring. Unlike common flashing fireflies, the tiny males hover slowly through the understory for hours, searching for the wingless, flightless females glowing silently in the leaf litter. These delicate beetles rely on pristine, undisturbed forest floors and absolute darkness to carry out their brief, spectacular mating rituals.
NocturnalBioluminescentForest-dwelling
Licensed referenceAggyrolemnoixytes / CC BY-SA 4.0 · cc-by-sa
- diet
- Larvae eat snails and slugs; adults do not feed during their short lives.
- family
- Lampyridae
- threats
- Light pollution, leaf litter compaction, habitat fragmentation, and pesticide runoff.
- life Span
- 1 to 2 years
NE
Safe to observe at a normal distance.
Extremely vulnerable to habitat disruption, trampling of flightless females, and light pollution that disrupts mating.
Stay strictly on marked trails, turn off all flashlights, and never attempt to catch or touch them.- Minimize Light: Use red-filtered flashlights or keep lights completely off to avoid disrupting their mating displays.
- Watch Your Step: Stay on designated trails to avoid crushing the flightless, glowing females in the leaf litter.
- Timing: Look for them during their brief late spring mating season, typically from late May to early June.