Observation: Unknown
Primary Observer:
Sandra Brangan
Event Date:
2024-06-02
Status:
Unverified
Survey
Site Name:
Lady of the Meadow
Province/State:
Massachusetts
Event Date:
2024-06-02
Time of Day:
Night-Time
Start Time:
21:30
End Time:
21:35
Number of Observers:
1
Primary Observer:
Sandra Brangan
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:
Lilac meadow with black cherry trees, yucca plants, unmowed meadow
Elevation (meters):
42.9768
Area Searched (hectares):
0.1011714
Artificial Light Sources
Vehicles: No
Street Lights: No
Buildings: Yes
Street Lights: No
Buildings: Yes
Artificial Light Types
Sky Glow (diffuse illumination in the sky): No
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:
With Flash Data
Number Observed:
2-10
genus:
unknown
Species:
unknown
Observation Notes:
Some flashed only once and others up to four times even at different heights.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:25
Last Flash Time:
21:30
First Flash Temp (F):
68
Last Flash Temp (F):
68
Flashes in Pattern:
4
Flash Color:
Yellow
Flash Pattern Period:
1-2
Flash Duration:
1-2
Flash Interval:
5
Male Height Zone:
Flash Location:
Some flashes are high and some low.
Male Flash Behavior:
Female Flash Behavior:
1 thought on “Observation: Unknown”
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A very belated thank you for submitting this firefly observation! I am intrigued about what species you might have seen. A photo of the firefly close-up will let you get a genus ID and significantly help to narrow the possible species.
A note about flash pattern details:
“Flash pattern period” refers to the number of seconds between the start of a flash pattern and the start of the next repetition of that flash pattern. For example, Photinus pyralis typically has a flash pattern period of 5-7 seconds.
“Flash duration” is how long each flash lasts. Usually this is too fast to measure accurately, but you can estimate whether it is more or less than 0.5 seconds, you can enter “not recorded,” or you can do a verbal description (such as “very brief”).
“Flash interval” refers to the time between the end of one flash and the beginning of the next. In species with single flash patterns and short flash durations, this is basically the same as “flash pattern period,” just a little shorter.