Observation: Photinus pyralis
Primary Observer:
Mason Moore
Event Date:
2026-07-21
Status:
Unreviewed
Survey
Site Name:
Farm
Province/State:
Illinois
Event Date:
2026-07-21
Time of Day:
Night-Time
Start Time:
19:45
End Time:
19:50
Number of Observers:
3
Primary Observer:
Mason Moore
Additional Observers:
Jill Moore
Dylan Moore
target_species_genus:
target_species_species:
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Woodland/Forest - Trees dominant, and in the over-story
Habitat Type Notes:
Old pasture with young tree growth and ground vegetation
Elevation (meters):
176
Area Searched (hectares):
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:
Specimen Voucher Number:
Flash Behavior
First Flash Time:
19:45
Last Flash Time:
19:50
First Flash Temp (F):
72
Last Flash Temp (F):
72
Flashes in Pattern:
1
Flash Color:
Yellow
Flash Pattern Period:
4
Flash Duration:
1
Flash Interval:
2
Male Height Zone:
Moderate (3-8 ft)
Flash Location:
During flight below tree tops but above ground vegetation
