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Observation: Photuris frontalis
Primary Observer:
Richard Joyce
Event Date:
2025-05-21
Status:
Verified
Survey
Site Name:
Province/State:
Georgia
Event Date:
2025-05-21
Time of Day:
Night-Time
Start Time:
20:23
End Time:
23:13
Number of Observers:
16
Primary Observer:
Richard Joyce
Additional Observers:
A. Yellin, A. Blades, R. Montalvo, A. A. Jennings, and various participants from GA DNR and Birds Georgia
Target Species Genus:
Photuris
Target Species Species:
forresti
Location and Habitat
Location Accuracy (meters):
500-1000
Habitat Type:
Riparian - Areas Along lake or stream
Habitat Type Notes:
A mix of upland forest and shrubby and herbaceous riparian/lakeside vegetation. Wetland areas had alder, sedges, and willow.
Elevation (meters):
220
Area Searched (hectares):
5.4
Artificial Light Sources
Vehicles: No
Street Lights: Yes
Buildings: No
Street Lights: Yes
Buildings: No
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): Yes
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): Yes
Artificial Light Notes:
Most of the survey area only had sky glow, but the area near the dam and parking lot has unshielded street lamps.
Observation
Observation Type:
Flashing
Number Observed:
2-10
Genus:
Photuris
Species:
frontalis
Observation Notes:
Low numbers, in the hardwood forest on the south side of Upper Alexander Lake.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:05
Last Flash Time:
21:30
First Flash Temp (F):
72
Last Flash Temp (F):
68
Flashes in Pattern:
1
Flash Color:
Yellow
Flash Pattern Period:
0.7
Flash Duration:
<0.1
Flash Interval:
~0.6
Male Height Zone:
Low (0-3 ft), Moderate (3-8 ft)
Flash Location:
In the forest understory.
Male Flash Behavior:
Long sets of quick single flashes, with flash pattern period of 0.7 degrees at about 72 deg F.
Female Flash Behavior:
Not observed.
