Observation: Unknown
Primary Observer:
R.R.
Event Date:
2026-07-26
Status:
Unverified
Survey
Site Name:
Undisclosed
Province/State:
Texas
Event Date:
2026-07-26
Time of Day:
Night-Time
Start Time:
20:30
End Time:
21:00
Number of Observers:
2
Primary Observer:
R.R.
Additional Observers:
S.R.
target_species_genus:
unknown
target_species_species:
unknown
Location and Habitat
Location Accuracy (meters):
>1000
Habitat Type:
Riparian - Areas Along lake or stream
Habitat Type Notes:
Vines: grape, wild blackberry, some bushes and trees
Elevation (meters):
Unk
Area Searched (hectares):
2
Artificial Light Sources
Vehicles: No
Street Lights: No
Buildings: No
Solar powered motion activated lights several yards away
Street Lights: No
Buildings: No
Solar powered motion activated lights several yards away
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:
With Flash Data
Number Observed:
2-10
genus:
unknown
Species:
unknown
Observation Notes:
Specimen Voucher Number:
Flash Behavior
First Flash Time:
20:35
Last Flash Time:
21:55
First Flash Temp (F):
85
Last Flash Temp (F):
Unk
Flashes in Pattern:
1
Flash Color:
Blue
Flash Pattern Period:
1/10-15 sec
Flash Duration:
1-2 sec
Flash Interval:
Unk
Male Height Zone:
Moderate (3-8 ft)
Flash Location:
Above low bushes
Male Flash Behavior:
Female Flash Behavior:
Unk
1 thought on “Observation: Unknown”
Leave a Comment
You must be logged in to post a comment.
Thanks for submitting this intriguing firefly observation! Based on the flash pattern details you entered, my image of the flash behavior is a bluish glow (1-2 seconds in duration) that is repeated at long intervals (every 10-15 seconds). Is that an accurate impression?
Phausis reticulata would have a considerably longer glow duration, staying lit for tens of seconds. Phausis reticulata also come out much later after sunset, unlike the dusk-displaying behavior you observed.
I’m curious as to what species you saw! Ultimately, catching and photographing one of these fireflies would be needed for a confident ID.