Observation: Photinus
Primary Observer:
Mara Zimmerman
Event Date:
2026-08-12
Status:
Unreviewed
Survey
Site Name:
Kellys Run Site #2
Province/State:
Pennsylvania
Event Date:
2026-08-12
Time of Day:
Night-Time
Start Time:
20:10
End Time:
21:30
Number of Observers:
2
Primary Observer:
Mara Zimmerman
Additional Observers:
Lisa Zimmerman
target_species_genus:
unknown
target_species_species:
unknown
Location and Habitat
Location Accuracy (meters):
25-50
Habitat Type:
Grassland/Meadow - Meadow, open, grasses dominant
Habitat Type Notes:
Habitat was mostly grassland, but had several areas with denser shrub vegetation. Frogs were also heard throughout the survey.
Elevation (meters):
207.9
Area Searched (hectares):
2.867
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): No
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:
photinus
Species:
unknown
Observation Notes:
Specimen's body length was 0.9cm.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
20:50
Last Flash Time:
21:15
First Flash Temp (F):
74.3
Last Flash Temp (F):
76.4
Flashes in Pattern:
1
Flash Color:
Yellow
Flash Pattern Period:
2.62
Flash Duration:
0.75
Flash Interval:
1.88
Male Height Zone:
Moderate (3-8 ft), High (over 8 ft)
Flash Location:
Flashes occurred close to the trees that bordered the meadow.
Male Flash Behavior:
Flashes were long, yellow streaks, and the males appeared to move in a s-shaped pattern, that curved downward during the flash.
