Observation: Photuris lucicrescens
Primary Observer:
Lydia Barker
Event Date:
2025-07-06
Status:
Verified











Survey
Site Name:
Undisclosed
Province/State:
Virginia
Event Date:
2025-07-06
Time of Day:
Night-Time
Start Time:
17:47
End Time:
23:10
Number of Observers:
3
Primary Observer:
Lydia Barker
Additional Observers:
Zachary Wood, Soni Anderson
target_species_genus:
photuris
target_species_species:
potomaca
Location and Habitat
Location Accuracy (meters):
250-500
Habitat Type:
Woodland/Forest - Trees dominant, and in the over-story
Habitat Type Notes:
Managed woods (mixed conifers and hardwoods) with areas of open unmowed grassland, bog and creek
Elevation (meters):
197
Area Searched (hectares):
0.8
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:
1
genus:
photuris
Species:
lucicrescens
Observation Notes:
~.6", caught in open meadow adjacent bog and creek
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:
 
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Flash Interval:
 
Male Height Zone:
Flash Location:
 
Male Flash Behavior:
 
Female Flash Behavior:
 
1 thought on “Observation: Photuris lucicrescens”
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Thank you for submitting this firefly observation! Based on the large size (~15 mm), pale hind coxae, and “interrupted” dark marking on the head shield, I am fairly certain that this is Photuris lucicrescens. The individual you photographed is a female.