Observation: Photuris quadrifulgens
Primary Observer:
Jeffrey calta
Event Date:
2026-05-26
Status:
Unreviewed
Survey
Site Name:
Fairview Township
Province/State:
Pennsylvania
Event Date:
2026-05-26
Time of Day:
Night-Time
Start Time:
22:00
End Time:
22:40
Number of Observers:
1
Primary Observer:
Jeffrey calta
Additional Observers:
Na
target_species_genus:
unknown
target_species_species:
unknown
Location and Habitat
Location Accuracy (meters):
250-500
Habitat Type:
Grassland/Meadow - Meadow, open, grasses dominant
Habitat Type Notes:
Fireflies emerged from a tree line and headed for open grassland/lawn
Elevation (meters):
400
Area Searched (hectares):
3
Artificial Light Sources
Vehicles: No
Street Lights: No
Buildings: No
Street Lights: No
Buildings: No
Artificial Light Types
Sky Glow (diffuse illumination in the sky): Yes
Light Trespass (light cast on surfaces beyond its intended target): No
Glare (bright light causing visual discomfort): No
Light Trespass (light cast on surfaces beyond its intended target): No
Glare (bright light causing visual discomfort): No
Artificial Light Notes:
Observation
Observation Type:
With Flash Data
Number Observed:
2-10
genus:
photuris
Species:
quadrifulgens
Observation Notes:
Specimen pix and physical traits closely resembles Photuris quadrifugens description given by Lynn faust in her firefly field guide. It is interesting that the flash color in flight looked yellow but when captured it was distinctly green.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
22:00
Last Flash Time:
22:40
First Flash Temp (F):
67
Last Flash Temp (F):
64
Flashes in Pattern:
3
Flash Color:
Green
Flash Pattern Period:
5-6
Flash Duration:
0.5
Flash Interval:
0.5
Male Height Zone:
Moderate (3-8 ft)
Flash Location:
Grass lawn
Male Flash Behavior:
3 green flashes every 5-6 secs.
Female Flash Behavior:
None observed
