Observation: Photinus knulli
Primary Observer:
Rohan Sorta
Event Date:
2025-06-24
Status:
Verified
Survey
Site Name:
Undisclosed
Province/State:
Arizona
Event Date:
2025-06-24
Time of Day:
Night-Time
Start Time:
19:37
End Time:
08:59
Number of Observers:
3
Primary Observer:
Rohan Sorta
Additional Observers:
Rachel Laura, Jade Snowhook
target_species_genus:
bicellonycha
target_species_species:
wickershamorum
Location and Habitat
Location Accuracy (meters):
50-100
Habitat Type:
Riparian - Areas Along lake or stream
Habitat Type Notes:
Elevation (meters):
1219
Area Searched (hectares):
1.25
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:
Sky glow, some points surveyed while the sun was still up
Observation
Observation Type:
With Flash Data
Number Observed:
2-10
genus:
photinus
Species:
knulli
Observation Notes:
Seen in open grassy field, flash pattern was quick quick flashes, rather than three.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
20:54
Last Flash Time:
20:59
First Flash Temp (F):
76.4
Last Flash Temp (F):
76.4
Flashes in Pattern:
2
Flash Color:
Yellow
Flash Pattern Period:
3
Flash Duration:
1
Flash Interval:
2
Male Height Zone:
Moderate (3-8 ft), High (over 8 ft)
Flash Location:
Seen flashing in open grassy field.
Male Flash Behavior:
Males only flashes twice, but this behavior was also observed later in the summer in this species as well.
