Observation: Photinus pyralis
Primary Observer:
Timothy Osbon, MD, MS
Event Date:
2026-05-26
Status:
Unreviewed
Survey
Site Name:
Undisclosed
Province/State:
South Carolina
Event Date:
2026-05-26
Time of Day:
Night-Time
Start Time:
20:40
End Time:
21:30
Number of Observers:
3
Primary Observer:
Timothy Osbon, MD, MS
Additional Observers:
target_species_genus:
photinus
target_species_species:
pyralis
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Woodland/Forest - Trees dominant, and in the over-story
Habitat Type Notes:
Elevation (meters):
2
Area Searched (hectares):
2
Artificial Light Sources
Vehicles: No
Street Lights: No
Buildings: Yes
Street Lights: No
Buildings: Yes
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:
11-50
genus:
photinus
Species:
pyralis
Observation Notes:
Specimen Voucher Number:
Flash Behavior
First Flash Time:
20:30
Last Flash Time:
21:05
First Flash Temp (F):
79
Last Flash Temp (F):
79
Flashes in Pattern:
3
Flash Color:
Yellow
Flash Pattern Period:
5
Flash Duration:
1
Flash Interval:
4
Male Height Zone:
High (over 8 ft)
Flash Location:
Near pond and high in tree line, some close to ground
Male Flash Behavior:
Typical
Female Flash Behavior:
Unknown
