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Observation: Photinus corruscus
Primary Observer:
Carl Manthey
Event Date:
2025-04-14
Status:
Unreviewed
Survey
Site Name:
Great Marsh, Elverson, PA
Province/State:
Pennsylvania
Event Date:
2025-04-14
Time of Day:
Day-Time
Start Time:
15:00
End Time:
16:45
Number of Observers:
Bernard Brown
Primary Observer:
Carl Manthey
Additional Observers:
Target Species Genus:
unknown
Target Species Species:
unknown
Location and Habitat
Location Accuracy (meters):
25-50
Habitat Type:
Forested Wetland - Swamp, cedar bog, mangrove
Habitat Type Notes:
Cattails, spatterdock, black willows, pin oak, red maple
Elevation (meters):
150
Area Searched (hectares):
1
Artificial Light Sources
Vehicles: No
Street Lights: No
Buildings: No
Daytime
Street Lights: No
Buildings: No
Daytime
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:
Non-Flashing
Number Observed:
2-10
Genus:
Photinus
Species:
corruscus
Observation Notes:
One mating pair was observed at 4:45 PM on the rough bark of a mature black willow along a wooded footpath adjacent to a marsh. The male was about a cm long and the female was noticeably larger and lighter in color. There were no light-colored edges to the wing covers. Ventral photos were not taken so as to not disturb.
