Observation: Photinus
Primary Observer:
Rosalind Reilly
Event Date:
2025-05-20
Status:
Verified
Survey
Site Name:
Jones Creek
Province/State:
Virginia
Event Date:
2025-05-20
Time of Day:
Night-Time
Start Time:
20:15
End Time:
21:30
Number of Observers:
1
Primary Observer:
Rosalind Reilly
Additional Observers:
NA
target_species_genus:
photuris
target_species_species:
forresti
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Riparian - Areas Along lake or stream
Habitat Type Notes:
Woods along the hill reaching down to creek are dry and open, primarily oak, hickory, holly, and hornbeam. Vegetation in marsh includes yellow pond lily, deer tongue, dayflower, and pawpaw.
Elevation (meters):
59.7
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:
photinus
Species:
unknown
Observation Notes:
.85 mm long. Firefly was flashing. Unfortunately I got my voice recordings of flash patterns I observed mixed up so I can't be sure which flash pattern this firefly exhibited--hence, I had to select non-flashing.
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: Photinus”
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Based on the dark, rounded pygidium, I think this is something in the Photinus consanguineus group: P. consanguineus, P. ignitus, P. jamesi, or P. macdermotti. Photinus consimilis shares a lot of traits (dark abdominal segments, dark scutellum, flared bar-shaped pronotal marking, dark pygidium), but the pygidium would be more pointed.