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Observation: Pyractomena
Primary Observer:
Richard Joyce
Event Date:
2025-06-18
Status:
Unreviewed
Survey
Site Name:
Dwelly Farm Conservation Area - Pollinator Field
Province/State:
Massachusetts
Event Date:
2025-06-18
Time of Day:
Night-Time
Start Time:
20:30
End Time:
22:29
Number of Observers:
12
Primary Observer:
Richard Joyce
Additional Observers:
Emily M., Erin K., Kurt F., Jen M., Lauren M., Jeff M., Kayla K., 3 additional participants
Target Species Genus:
unknown
Target Species Species:
unknown
Location and Habitat
Location Accuracy (meters):
25-50
Habitat Type:
Grassland/Meadow - Meadow, open, grasses dominant
Habitat Type Notes:
Pollinator field established from an old pasture that had grown up in thick, open-grown white pine. Plants included large-leaved lupine (Lupinus polyphyllus), red oak (Quercus rubra) and birch (Betula) seedlings, bracken fern (Pteridium aquilinum), and Canadian lousewort (Pedicularis canadensis).
Elevation (meters):
305
Area Searched (hectares):
0.5
Artificial Light Sources
Vehicles: Yes
Street Lights: No
Buildings: No
Street Lights: No
Buildings: No
Artificial Light Types
Sky Glow (diffuse illumination in the sky): Yes
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): Yes
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): Yes
Artificial Light Notes:
Passing vehicles on Barre Road caused light trespass and glare within the survey area.
Observation
Observation Type:
Flashing
Number Observed:
11-50
Genus:
Pyractomena
Species:
unknown
Observation Notes:
About 11 mm long.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:10
Last Flash Time:
22:29
First Flash Temp (F):
70
Last Flash Temp (F):
69.5
Flashes in Pattern:
1
Flash Color:
Green
Flash Pattern Period:
4.9-6.4, avg 5.6
Flash Duration:
1-1.9
Flash Interval:
4-4.6
Male Height Zone:
Low (0-3 ft)
Flash Location:
Just above the grass and forbs.
Male Flash Behavior:
Long (1-2 second) greenish glows emitted while flying in a slow, drifting trajectory just above the grass.
Female Flash Behavior:
No females found.
