Observation: Unknown
Primary Observer:
Cai
Event Date:
2026-06-11
Status:
Unreviewed
Survey
Site Name:
GLSP ~ Hicks Beltway by the Spillway from the marsh
Province/State:
New York
Event Date:
2026-06-11
Time of Day:
Night-Time
Start Time:
21:30
End Time:
23:40
Number of Observers:
3
Primary Observer:
Cai
Additional Observers:
Chris Chien, Caitlin Glynn
target_species_genus:
unknown
target_species_species:
unknown
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Forested Wetland - Swamp, cedar bog, mangrove
Habitat Type Notes:
unsure, dominant plant of wetland; however, the forest directly surrounding the water is hemlock-dominant.
Elevation (meters):
450.52
Area Searched (hectares):
1.4
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): No
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:
There are light sources at the welcome center; however, the Welcome center is around 940 Feet away, and we couldn't see any light
Observation
Observation Type:
With Flash Data
Number Observed:
1
genus:
unknown
Species:
unknown
Observation Notes:
Potentially a tree-top flasher, we had one observable flash pattern; there were potentially more, but they were very high.
couldn't catch it. It was way too high up.
We learned a lot and will be more prepared for next time.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
22:40
Last Flash Time:
22:43
First Flash Temp (F):
72
Last Flash Temp (F):
72
Flashes in Pattern:
1
Flash Color:
Yellow
Flash Pattern Period:
1
Flash Duration:
.25
Flash Interval:
.5
Male Height Zone:
High (over 8 ft)
Flash Location:
through the trees
Male Flash Behavior:
Rhythmic and infinite, Quick but brighter at the zenith of each blip.
Female Flash Behavior:
1 thought on “Observation: Unknown”
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The tree-flashing fireflies are tricky, especially once it’s late enough in the season that Photuris are active. June 11th would be toward the end of the Pyractomena borealis season, but not out of the question.