Observation: Photinus consimilis
Primary Observer:
Katie Hietala-Henschell
Event Date:
2025-07-08
Status:
Unreviewed



Survey
Site Name:
Spider Lake
Province/State:
Michigan
Event Date:
2025-07-08
Time of Day:
Night-Time
Start Time:
22:12
End Time:
23:20
Number of Observers:
1
Primary Observer:
Katie Hietala-Henschell
Additional Observers:
NA
target_species_genus:
unknown
target_species_species:
unknown
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Open Freshwater Wetland - Wetland Bog, fen, freshwater marsh
Habitat Type Notes:
Open wetland with cattails, phragmites, fern, and sphagnum moss. Standing snags and downed logs present. Bordered by narrow buffer of mixed deciduous and coniferous trees. Surrounded by residential housing.
Elevation (meters):
263
Area Searched (hectares):
1.75
Artificial Light Sources
Vehicles: Yes
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): Yes
Light Trespass (light cast on surfaces beyond its intended target): No
Glare (bright light causing visual discomfort): Yes
Artificial Light Notes:
 
Observation
Observation Type:
With Flash Data
Number Observed:
11-50
genus:
photinus
Species:
consimilis
Observation Notes:
Approximately 15 mm.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
22:20
Last Flash Time:
23:20
First Flash Temp (F):
71
Last Flash Temp (F):
69
Flashes in Pattern:
>4
Flash Color:
Yellow
Flash Pattern Period:
11.5
Flash Duration:
1.5
Flash Interval:
10
Male Height Zone:
Low (0-3 ft), Moderate (3-8 ft)
Flash Location:
Over wetland and in tree margin.
Male Flash Behavior:
Flash train: quick 6 part flash, followed by 10 second flash interval. Flash train varied between 6-9 flashes.
Female Flash Behavior:
 


