Observation: Photinus pyralis
Primary Observer:
Debi Domby
Event Date:
2026-07-01
Status:
Unreviewed
Survey
Site Name:
Home Backyard
Province/State:
Michigan
Event Date:
2026-07-01
Time of Day:
Night-Time
Start Time:
21:30
End Time:
21:40
Number of Observers:
1
Primary Observer:
Debi Domby
Additional Observers:
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:
Elevation (meters):
179.832
Area Searched (hectares):
.000464515
Artificial Light Sources
Vehicles: No
Street Lights: Yes
Buildings: No
Street Lights: Yes
Buildings: No
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:
Observation
Observation Type:
Without Flash Data
Number Observed:
11-50
genus:
photinus
Species:
pyralis
Observation Notes:
!0 second sample: 42, 48, 48
Flashes for individual 3.5 secs between flashes
Colors: white, yellow/green, red/orange
This season is starting out weird. I've done this probably 10-15 years, I started with the original Tufts counters. Normally with 91 degrees & heat index this high, I should have a closer to 75+ They flash so fast and so many, I count by 5 ... And they're still zipping around, not staying in one spot. Very unusual season so far.
