Observation: Photuris tremulans
Primary Observer:
William D Cottrell
Event Date:
2023-05-23
Status:
Unverified
Survey
Site Name:
Province/State:
Georgia
Event Date:
2023-05-23
Time of Day:
Night-Time
Start Time:
21:04
End Time:
22:05
Number of Observers:
1
Primary Observer:
William D Cottrell
Additional Observers:
target_species_genus:
target_species_species:
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Open Freshwater Wetland - Wetland Bog, fen, freshwater marsh
Habitat Type Notes:
Elevation (meters):
188
Area Searched (hectares):
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:
Without Flash Data
Number Observed:
11-50
genus:
photuris
Species:
tremulans
Observation Notes:
Specimen Voucher Number:
Flash Behavior
First Flash Time:
Last Flash Time:
First Flash Temp (F):
Last Flash Temp (F):
Flashes in Pattern:
Flash Color:
Flash Pattern Period:
Flash Duration:
Flash Interval:
Male Height Zone:
Flash Location:
Male Flash Behavior:
Female Flash Behavior:
1 thought on “Observation: Photuris tremulans”
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There appear to be a couple species in these images. The greenish flickers (which appear as ~10 very tightly-spaced/touching flashes) are likely Photuris tremulans, known by the common names “Christmas Lights” and “confusing firefly.”
The first three photos appear to have Photinus consimilis, the cattail flash-train firefly. The flash patterns appear as ~6 yellowish flashes in an S or fishhook-shaped string.