Observation: Photinus pyralis
Primary Observer:
Jon Storm
Event Date:
2026-07-01
Status:
Unreviewed
Survey
Site Name:
Undisclosed
Province/State:
South Carolina
Event Date:
2026-07-01
Time of Day:
Night-Time
Start Time:
20:15
End Time:
22:45
Number of Observers:
3
Primary Observer:
Jon Storm
Additional Observers:
Christian Boschult
Daniel Ross
target_species_genus:
photuris
target_species_species:
forresti
Location and Habitat
Location Accuracy (meters):
100-250
Habitat Type:
Forested Wetland - Swamp, cedar bog, mangrove
Habitat Type Notes:
Wetland along an unnamed creek. Wetland has cattails, buttonbush, and what is likely duck potato. Woodland of oak, hickory, tulip poplar, and sweetgum trees.
Elevation (meters):
257
Area Searched (hectares):
0.5 ha
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:
11-50
genus:
photinus
Species:
pyralis
Observation Notes:
12.5 mm
Flying in open habitat
Images will not upload to website
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:05
Last Flash Time:
22:44
First Flash Temp (F):
83.5
Last Flash Temp (F):
78
Flashes in Pattern:
1
Flash Color:
Yellow
Flash Pattern Period:
5
Flash Duration:
0.6
Flash Interval:
5.5
Male Height Zone:
Moderate (3-8 ft)
Flash Location:
Flying in open spaces in OHV trails and in a powerline right-of-way
Male Flash Behavior:
Males gave several flashes in a row, often ~5.
