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Observation: Photinus pyralis
Primary Observer:
Allen Knutson
Event Date:
2024-06-12
Status:
Verified
Survey
Site Name:
Clymer Meadow Preserve TNC
Province/State:
Texas
Event Date:
2024-06-12
Time of Day:
Night-Time
Start Time:
20:30
End Time:
21:50
Number of Observers:
1
Primary Observer:
Allen Knutson
Additional Observers:
none
Target Species Genus:
unknown
Target Species Species:
unknown
Location and Habitat
Location Accuracy (meters):
250-500
Habitat Type:
Grassland/Meadow - Meadow, open, grasses dominant
Habitat Type Notes:
open grassland dominated by Johnsongrass 3-4 ft tall. Dense woods, hackberry common, Deep, dry gully follows wooded area along survey area.
Elevation (meters):
198
Area Searched (hectares):
1 hectare
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:
Flashing
Number Observed:
2-10
Genus:
Photinus
Species:
pyralis
Observation Notes:
Males flashing at 3-8 ft above ground. "J-stroke" pattern observed. Began flying at dusk when adults clearly visible in fading light. Identification based upon color pattern on pronotum, presence of stigmata on lanterns, the clear margin along the fifth abdominal segment just above the two lanterns, and the T-shaped pattern on the pygidium, as shown in Faust. No information on flash pattern but physical characteristics provide confidence in identification.
Specimen Voucher Number:
AEK3, AEK4
Flash Behavior
First Flash Time:
20:55
Last Flash Time:
21:09
First Flash Temp (F):
89
Last Flash Temp (F):
89
Flashes in Pattern:
1
Flash Color:
Yellow
Flash Pattern Period:
.
Flash Duration:
.
Flash Interval:
.
Male Height Zone:
Moderate (3-8 ft)
Flash Location:
Above field dominated by Johnsongrass 3-4 ft tall.
Male Flash Behavior:
J-stroke pattern observed
