Observation: Photinus
Primary Observer:
Brandie Dunn
Event Date:
2025-07-09
Status:
Unverified
Survey
Site Name:
East End BBI
Province/State:
Michigan
Event Date:
2025-07-09
Time of Day:
Day-Time
Start Time:
09:30
End Time:
09:50
Number of Observers:
1
Primary Observer:
Brandie Dunn
Additional Observers:
target_species_genus:
unknown
target_species_species:
unknown
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Grassland/Meadow - Meadow, open, grasses dominant
Habitat Type Notes:
Meadow under power lines, along forested/woodland edge. Cedar/striped maple/pines. Common milkweed, Hound's-tongue, grasses, self-heal, wild parsnip present.
Elevation (meters):
600
Area Searched (hectares):
.06
Artificial Light Sources
Vehicles: No
Street Lights: No
Buildings: No
Street Lights: No
Buildings: No
Artificial Light Types
Sky Glow (diffuse illumination in the sky): No
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:
Without Flash Data
Number Observed:
1
genus:
photinus
Species:
unknown
Observation Notes:
10 mm. Found on Common Milkweed during day.
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”
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Nice observation of a female Photinus! Based on the region, dark scutellum, dark pygidium, and 10 mm length– there are 4 possibilities: P. ardens, P. consanguineus, P. consimilis, and P. obscurellus.
Based on the meadow habitat and the non-flared shape of the marking on the pronotum, P. consimilis does not seem right. So I would lean toward P. consanguineus (or something in that species group), but I am going to leave this at the genus level.