Observation: Photinus pyralis
Primary Observer:
Alexander Kalisiak
Event Date:
2026-06-26
Status:
Unreviewed
Survey
Site Name:
South Meadow Field
Province/State:
New York
Event Date:
2026-06-26
Time of Day:
Night-Time
Start Time:
21:50
End Time:
21:55
Number of Observers:
2
Primary Observer:
Alexander Kalisiak
Additional Observers:
Melissa Heft-Kalisiak
target_species_genus:
unknown
target_species_species:
unknown
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Grassland/Meadow - Meadow, open, grasses dominant
Habitat Type Notes:
Elevation (meters):
154m
Area Searched (hectares):
1
Artificial Light Sources
Vehicles: Yes
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:
21:50
Last Flash Time:
21:55
First Flash Temp (F):
65
Last Flash Temp (F):
65
Flashes in Pattern:
1
Flash Color:
Green
Flash Pattern Period:
1
Flash Duration:
1
Flash Interval:
1
Male Height Zone:
Moderate (3-8 ft)
Flash Location:
Wet field, suburban neighborhood under power line easement. between two houses covered with lights and motion sensitive flood lights. grass was waist height, unmowed. mowed area in front did not appear to have any noticeable fireflies
Male Flash Behavior:
Yellow-green color; pulsing very briefly about once a second every second
