Observation: Photinus pyralis
Primary Observer:
Hope Odenwalt
Event Date:
2026-06-17
Status:
Unreviewed
Survey
Site Name:
Undisclosed
Province/State:
Pennsylvania
Event Date:
2026-06-17
Time of Day:
Night-Time
Start Time:
21:29
End Time:
22:03
Number of Observers:
1
Primary Observer:
Hope Odenwalt
Additional Observers:
NA
target_species_genus:
photinus
target_species_species:
pyralis
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Developed - Sub/urban areas; parks/gardens
Habitat Type Notes:
Elevation (meters):
114.3
Area Searched (hectares):
0.0542
Artificial Light Sources
Vehicles: No
Street Lights: Yes
Buildings: Yes
Street Lights: Yes
Buildings: Yes
Artificial Light Types
Sky Glow (diffuse illumination in the sky): Yes
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): No
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): No
Artificial Light Notes:
Observation
Observation Type:
With Flash Data
Number Observed:
2-10
genus:
photinus
Species:
pyralis
Observation Notes:
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:29
Last Flash Time:
22:00
First Flash Temp (F):
76.1
Last Flash Temp (F):
72.1
Flashes in Pattern:
1
Flash Color:
Unknown
Flash Pattern Period:
8
Flash Duration:
1
Flash Interval:
7
Male Height Zone:
Moderate (3-8 ft)
Flash Location:
Many flashes near treeline by water retention area of neighborhood development. Some flashes in the divet area and some flashes on the lawns near houses.
