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Observation: Photinus pyralis
Primary Observer:
Bailie Miller
Event Date:
2025-07-06
Status:
Unverified
Survey
Site Name:
My backyard
Province/State:
Ohio
Event Date:
2025-07-06
Time of Day:
Day-Time
Start Time:
20:20
End Time:
20:20
Number of Observers:
1
Primary Observer:
Bailie Miller
Additional Observers:
NA
Target Species Genus:
unknown
Target Species Species:
unknown
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Developed - Sub/urban areas; parks/gardens
Habitat Type Notes:
In backyard, mostly grass. Some flowers in a mulched flowerbed - roses, snapdragons, petunias, etc.
Elevation (meters):
unknown
Area Searched (hectares):
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): Yes
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): No
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): No
Artificial Light Notes:
street lights, porch lights. Flashing "Christmas" lights on a railing
Observation
Observation Type:
Non-Flashing
Number Observed:
2-10
Genus:
Photinus
Species:
pyralis
Observation Notes:
Other flashing fireflies observed. Still light out. This one was not flashing currently
Specimen Voucher Number:
Flash Behavior
First Flash Time:
Last Flash Time:
First Flash Temp (F):
Last Flash Temp (F):
Flashes in Pattern:
Flash Color:
Flash Pattern Period:
Flash Duration:
Flash Interval:
Male Height Zone:
Flash Location:
Male Flash Behavior:
Female Flash Behavior:
1 thought on “Observation: Photinus pyralis”
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Thank you for submitting this incidental firefly observation!
Based on the photo, this firefly is in the genus Photinus, and Photinus pyralis is the most likely species based on location and backyard habitat. Photos of the underside and flash pattern details would be helpful for confirming (Photinus pyralis does an upward swooping, “J-shaped” yellow flash every 4-6 seconds, often quite low over the grass.)