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Observation: Pterotus obscuripennis
Primary Observer:
Candace Fallon
Event Date:
2025-05-21
Status:
Verified
Survey
Site Name:
Dog Mountain
Province/State:
Washington
Event Date:
2025-05-21
Time of Day:
Day-Time
Start Time:
19:00
End Time:
19:56
Number of Observers:
2
Primary Observer:
Candace Fallon
Additional Observers:
Corey Schuster
Target Species Genus:
Target Species Species:
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Woodland/Forest - Trees dominant, and in the over-story
Habitat Type Notes:
Douglas-fir, Garry and Oregon white oak, poison oak, bigleaf maple
Elevation (meters):
191
Area Searched (hectares):
Artificial Light Sources
Artificial Light Types
Artificial Light Notes:
Observation
Observation Type:
Non-Flashing
Number Observed:
2-10
Genus:
Pterotus
Species:
obscuripennis
Observation Notes:
Approximately six adult male individuals observed flying and perching on grasses along the trail over a ~0.5 mile stretch. Individuals were very active, not perching for long, and flight was strong and fast. Perched individuals were observed waving their antennae around in the light breeze. Later in the evening (approximately 10:30-11pm) we searched the same area for glowing adult females but did not find any. At this point it had been raining steadily for at least an hour and may have been too wet for fireflies to be active.
