Observation: Photinus pyralis
Primary Observer:
Shawn Rosinski
Event Date:
2020-07-10
Status:
Verified
Survey
Site Name:
South Bend
Province/State:
Indiana
Event Date:
2020-07-10
Time of Day:
Night-Time
Start Time:
22:00
End Time:
23:30
Number of Observers:
1
Primary Observer:
Shawn Rosinski
Additional Observers:
Target Species Genus:
Photinus
Target Species Species:
brimleyi
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Grassland/Meadow - Meadow, open, grasses dominant
Habitat Type Notes:
rural yard, heavily wooded. This species in open area surrounded by mature trees
Elevation (meters):
282
Area Searched (hectares):
1
Artificial Light Sources
Vehicles: No
Street Lights: No
Buildings: Yes
Street Lights: No
Buildings: Yes
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:
Flashing
Number Observed:
11-50
Genus:
Photinus
Species:
pyralis
Observation Notes:
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:30
Last Flash Time:
22:30
First Flash Temp (F):
75
Last Flash Temp (F):
72
Flashes in Pattern:
1
Flash Color:
Yellow
Flash Pattern Period:
5
Flash Duration:
1
Flash Interval:
5
Male Height Zone:
Low (0-3 ft), Moderate (3-8 ft)
Flash Location:
Open yard surrounded by mature trees
Male Flash Behavior:
Fly low to ground, flash a hook then stop and wait, then fly 5-10 feet and repeat
Female Flash Behavior:
1 thought on “Observation: Photinus pyralis”
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Thanks for submitting this firefly observation! The appearance and flash behavior (especially the 5-second spacing between flashes and the “hook” shaped flash) seem to be a better fit with Photinus pyralis, so I changed the species accordingly.