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Observation: Photuris
Primary Observer:
Kaitlin
Event Date:
2025-07-15
Status:
Unverified
Survey
Site Name:
Home
Province/State:
Minnesota
Event Date:
2025-07-15
Time of Day:
Night-Time
Start Time:
21:12
End Time:
21:41
Number of Observers:
1
Primary Observer:
Kaitlin
Additional Observers:
NA
Target Species Genus:
unknown
Target Species Species:
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Woodland/Forest - Trees dominant, and in the over-story
Habitat Type Notes:
Elevation (meters):
0
Area Searched (hectares):
1
Artificial Light Sources
Vehicles: No
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:
Observation
Observation Type:
Flashing
Number Observed:
11-50
Genus:
Photuris
Species:
unknown
Observation Notes:
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:13
Last Flash Time:
21:41
First Flash Temp (F):
77
Last Flash Temp (F):
76
Flashes in Pattern:
3
Flash Color:
Green
Flash Pattern Period:
10
Flash Duration:
1
Flash Interval:
3
Male Height Zone:
Low (0-3 ft), Moderate (3-8 ft)
Flash Location:
On the ground and flying
Male Flash Behavior:
Female Flash Behavior:
2 thoughts on “Observation: Photuris”
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Thanks for submitting this incidental firefly observation! This firefly is a female Photuris. You can identify this genus by the long legs, the somewhat hunched posture, and the shape of the lanterns/light organs. The two oval lanterns that don’t fill the segments they are on are a good indicator of a female Photuris. Based on the location, Photuris fairchildi is a possibility, but male flash pattern details would be needed to confirm.
Thank you so much for identifying it! So excited to read your comment!!