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Observation: Unknown
Primary Observer:
Heidi Ananthakrishnan
Event Date:
2025-07-31
Status:
Unverified
Survey
Site Name:
Fillmore Park trail
Province/State:
Virginia
Event Date:
2025-07-31
Time of Day:
Night-Time
Start Time:
21:13
End Time:
21:14
Number of Observers:
1
Primary Observer:
Heidi Ananthakrishnan
Additional Observers:
N/A
Target Species Genus:
Photinus
Target Species Species:
carolinus
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Developed - Sub/urban areas; parks/gardens
Habitat Type Notes:
Elevation (meters):
63
Area Searched (hectares):
1
Artificial Light Sources
Vehicles: No
Street Lights: Yes
Buildings: Yes
Street Lights: Yes
Buildings: Yes
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:
Observation
Observation Type:
Flashing
Number Observed:
2-10
Genus:
unknown
Species:
unknown
Observation Notes:
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:13
Last Flash Time:
21:14
First Flash Temp (F):
81
Last Flash Temp (F):
81
Flashes in Pattern:
>4
Flash Color:
Unknown
Flash Pattern Period:
8
Flash Duration:
1
Flash Interval:
1
Male Height Zone:
Moderate (3-8 ft), High (over 8 ft)
Flash Location:
In a forested patch. Several were flashing about eight times, some five times.
Male Flash Behavior:
Female Flash Behavior:
1 thought on “Observation: Unknown”
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Thanks for doing submitting this observation, and for doing a full survey!
This location would be an unusual place to find Photinus carolinus, which is typically found in hilly Appalachian forests.
The multi-pulse flash pattern that you describe could fit with Photinus carolinus, but there are several other species that could do a multi-pulse flash pattern, such as Photinus consimilis and some species of Photuris (Photuris would be my best guess based on the habitat, flash pattern, and display heights). Because of this, I have changed the genus and species to “unknown.” Catching and photographing a firefly can be challenging, but it can really help to narrow down options when trying to identify to species.