Observation: Photuris
Primary Observer:
Lisa Zimmerman
Event Date:
2026-07-15
Status:
Unreviewed
Survey
Site Name:
Kelly’s Run Site 3
Province/State:
Pennsylvania
Event Date:
2026-07-15
Time of Day:
Night-Time
Start Time:
20:30
End Time:
21:50
Number of Observers:
2
Primary Observer:
Lisa Zimmerman
Additional Observers:
Mara Zimmerman
target_species_genus:
unknown
target_species_species:
unknown
Location and Habitat
Location Accuracy (meters):
25-50
Habitat Type:
Woodland/Forest - Trees dominant, and in the over-story
Habitat Type Notes:
Some sections of the forest had small clearings filled with invasive grassy plants.
Elevation (meters):
218.4
Area Searched (hectares):
74.83
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:
photuris
Species:
unknown
Observation Notes:
The body length of the specimen was 2 cm.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:15
Last Flash Time:
21:50
First Flash Temp (F):
86.7
Last Flash Temp (F):
84.0
Flashes in Pattern:
1
Flash Color:
White
Flash Pattern Period:
3.55
Flash Duration:
0.15
Flash Interval:
3.40
Male Height Zone:
Low (0-3 ft), Moderate (3-8 ft), High (over 8 ft)
Flash Location:
Flashes were mostly under forest cover, midway up the trees, but also occurred high in the tree tops and in brush on the ground. Several also flashed in a small open clearing that was surrounded by the forested area.
Male Flash Behavior:
The male flash pattern was short, with a fairly long dark period between flashes. The flashes appeared to have greenish, white coloring.
