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Observation: Photuris
Primary Observer:
Rainey Miller
Event Date:
2025-06-29
Status:
Unverified
Survey
Site Name:
Madera Canyon
Province/State:
Texas
Event Date:
2025-06-29
Time of Day:
Night-Time
Start Time:
21:45
End Time:
22:25
Number of Observers:
2
Primary Observer:
Rainey Miller
Additional Observers:
Stephen Hummel
I estimated the temperature and humidity.
Target Species Genus:
Photuris
Target Species Species:
falli
Location and Habitat
Location Accuracy (meters):
500-1000
Habitat Type:
Riparian - Areas Along lake or stream
Habitat Type Notes:
Pinyon, juniper, and oak trees, tall grass
Elevation (meters):
1798
Area Searched (hectares):
0.3
Artificial Light Sources
Vehicles: No
Street Lights: No
Buildings: No
Headlamps
Street Lights: No
Buildings: No
Headlamps
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:
We wore headlamps with red lights.
Observation
Observation Type:
Flashing
Number Observed:
1
Genus:
Photuris
Species:
unknown
Observation Notes:
At 10:04, saw a single firefly flashing on the other side of the creek. It flashed for three minutes, stopping at 10:07.
It resumed flashing at 10:09 for a few seconds and then stopped again.
Because it was on the other side of the creek, I could not collect it or get up-close photos.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
22:04
Last Flash Time:
22:09
First Flash Temp (F):
70
Last Flash Temp (F):
70
Flashes in Pattern:
1
Flash Color:
Green
Flash Pattern Period:
0.5
Flash Duration:
0.5
Flash Interval:
0.5
Male Height Zone:
Moderate (3-8 ft)
Flash Location:
In a brushy area next to the creek at Madera Canyon, roughly 5 feet in the air. I estimated the flash pattern, interval, and duration because this was my first survey and I forgot to record that info.
Male Flash Behavior:
There was one flash in each pattern.
