Fauna
Insect · GBIF taxon 4290564

Plumose Glowworm Beetle

Phengodes plumosa

Also known as Railroad Worm, Plumose Glowworm

Females remain wingless and caterpillar-like throughout adulthood, glowing continuously with bright green luminescence along their body segments to attract mates. Males feature large, feathery antennae engineered to detect subtle female pheromones floating through dark woodland understories. Predatory larvae and females stalk millipedes across damp leaf litter in North American forests.

BioluminescentNocturnalWoodland Insect
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & prey
  • Millipedes
  • Small Centipedes
  • Soil Invertebrates
Predators
  • Toads
  • Spiders
  • Ground Beetles
ThreatsHabitat fragmentation, light pollution, excessive pesticide use
HabitatsDeciduous forests, damp woodlands, leaf litter
Life span1–2 years
  1. OrderColeoptera
  2. FamilyPhengodidae
  3. GenusPhengodes
  4. SpeciesPhengodes plumosa
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Night Observations: Look for the soft green luminescence of females in damp leaf litter on warm summer nights.
  • Light Attractants: Males frequently visit porch lights or UV light traps near rich deciduous woods.
  • Minimize Disturbance: Enjoy their glow from a short distance without using bright flashlights.
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