Observation: Pyractomena borealis
Primary Observer:
Brad OBrien
Event Date:
2026-03-22
Status:
Unreviewed
Survey
Site Name:
Undisclosed
Province/State:
South Carolina
Event Date:
2026-03-22
Time of Day:
Night-Time
Start Time:
19:00
End Time:
22:00
Number of Observers:
3
Primary Observer:
Brad OBrien
Additional Observers:
Jory Fleming, Jocelyn Falkenstine
target_species_genus:
pyractomena
target_species_species:
borealis
Location and Habitat
Location Accuracy (meters):
500-1000
Habitat Type:
Woodland/Forest - Trees dominant, and in the over-story
Habitat Type Notes:
Loblolly pine
Elevation (meters):
59
Area Searched (hectares):
5
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:
With Flash Data
Number Observed:
11-50
genus:
pyractomena
Species:
borealis
Observation Notes:
Body length: 14 mm
Flashing high in the trees, but some were around head height, which made it possible for us to catch one in a net.
Specimen Voucher Number:
1
Flash Behavior
First Flash Time:
20:11
Last Flash Time:
21:30
First Flash Temp (F):
74
Last Flash Temp (F):
70
Flashes in Pattern:
1
Flash Color:
Yellow
Flash Pattern Period:
4
Flash Duration:
1
Flash Interval:
3
Male Height Zone:
Moderate (3-8 ft), High (over 8 ft)
Flash Location:
Flashed around trees
Male Flash Behavior:
Single flash, yellow gold, repeated around 3 second intervals
Female Flash Behavior:
None observed
