Observation: Photuris tremulans
Primary Observer:
Jason Poston
Event Date:
2026-05-19
Status:
Unreviewed
Survey
Site Name:
Undisclosed
Province/State:
South Carolina
Event Date:
2026-05-19
Time of Day:
Night-Time
Start Time:
21:00
End Time:
21:45
Number of Observers:
1
Primary Observer:
Jason Poston
Additional Observers:
NA
target_species_genus:
photuris
target_species_species:
frontalis
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Woodland/Forest - Trees dominant, and in the over-story
Habitat Type Notes:
River less than 300 ft away, pond and floodplain near by.
Elevation (meters):
20
Area Searched (hectares):
1
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): 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:
There was a controlled burn on the other side of the wooded lot.
Observation
Observation Type:
With Flash Data
Number Observed:
2-10
genus:
photuris
Species:
tremulans
Observation Notes:
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:00
Last Flash Time:
21:45
First Flash Temp (F):
75
Last Flash Temp (F):
72
Flashes in Pattern:
>4
Flash Color:
Yellow
Flash Pattern Period:
6
Flash Duration:
2
Flash Interval:
.2
Male Height Zone:
Low (0-3 ft), Moderate (3-8 ft)
Flash Location:
Near edge of road, center of road
Male Flash Behavior:
about 10 flashes within a 2 second period - dark for around 4 seconds and another 10 quick flashes. Similar to a strobe light.
