Observation: Photuris
Primary Observer:
GA DNR
Event Date:
2025-05-29
Status:
Unverified
Survey
Site Name:
Jekyll Island 4H Glory Beach Boardwalk
Province/State:
Georgia
Event Date:
2025-05-29
Time of Day:
Night-Time
Start Time:
20:38
End Time:
22:30
Number of Observers:
5
Primary Observer:
GA DNR
Additional Observers:
Anna, Amaad, Alex Anne, Alexia, and Kate
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:
Elevation (meters):
4
Area Searched (hectares):
1
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): 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:
Observation
Observation Type:
Without Flash Data
Number Observed:
1
genus:
photuris
Species:
unknown
Observation Notes:
Put non-flashing since the flash pattern info wasn't very detailed. "flying horizontally. single flashes. 1 every 2 secs. continuous green.
Right over brush. about 7 ft off ground. 1 ft above cat tails and other vegetation. Amaad has recording-update when I get this.
Lots of them doing the same behavior.
Specimen Voucher Number:
10
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”
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Thanks for this firefly observation! Based on the small size (~10 mm), hind coxae of moderate darkness (brown or dusky), the location/habitat, and flash behavior description, I think the best fit might be Photuris salina sensu lato, as presented by Lloyd 2018. Other less likely possibilities include Photuris douglasae or Photuris bethaniensis, with P. douglasae being much more likely. Lloyd’s hypothesis was that these last two species are sister species.