Observation: Photinus pyralis
Primary Observer:
Jen Hunsinger
Event Date:
2024-06-08
Status:
Verified
Survey
Site Name:
Undisclosed
Province/State:
Pennsylvania
Event Date:
2024-06-08
Time of Day:
Night-Time
Start Time:
20:49
End Time:
21:29
Number of Observers:
1
Primary Observer:
Jen Hunsinger
Additional Observers:
NA
target_species_genus:
photinus
target_species_species:
pyralis
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Developed - Sub/urban areas; parks/gardens
Habitat Type Notes:
Backyard, many trees, about a third is unmowed (this part consisting of ground ivy and mock strawberry), and the rest was last mowed about 2 weeks prior, consisting of a variety of lawn grasses.
Elevation (meters):
170.0784
Area Searched (hectares):
.0648001066
Artificial Light Sources
Vehicles: Yes
Street Lights: Yes
Buildings: Yes
Street Lights: Yes
Buildings: Yes
Artificial Light Types
Sky Glow (diffuse illumination in the sky): No
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): Yes
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): Yes
Artificial Light Notes:
Observation
Observation Type:
With Flash Data
Number Observed:
2-10
genus:
photinus
Species:
pyralis
Observation Notes:
2-10 males, 11-50 suspected females (flashes in the grass)
Specimen Voucher Number:
Flash Behavior
First Flash Time:
20:51
Last Flash Time:
21:24
First Flash Temp (F):
69
Last Flash Temp (F):
71
Flashes in Pattern:
1
Flash Color:
Yellow
Flash Pattern Period:
8.79
Flash Duration:
Brief
Flash Interval:
8.79
Male Height Zone:
Low (0-3 ft), Moderate (3-8 ft)
Flash Location:
Females - in grass
Males - in mid air in open space
Male Flash Behavior:
1 flash while flying slowly in the shape of a J, the swiftly flying in a different direction to emit next J shaped flash.
Female Flash Behavior:
Stationary in grass, many seconds between flashes
