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Observation: Pyractomena ecostata
Primary Observer:
Richard Joyce
Event Date:
2025-07-15
Status:
Verified
Survey
Site Name:
Cattus Island County Park
Province/State:
New Jersey
Event Date:
2025-07-15
Time of Day:
Night-Time
Start Time:
20:37
End Time:
22:50
Number of Observers:
8
Primary Observer:
Richard Joyce
Additional Observers:
Griffin Danllary, Grace Cocanower, Kathryn Krueger, Emily Mansfield, Caitlin Hales, Brian Gisinger, Nick Mazuri.
Target Species Genus:
Pyractomena
Target Species Species:
ecostata
Location and Habitat
Location Accuracy (meters):
500-1000
Habitat Type:
Tidal Marsh - Salt marsh or brackish marsh
Habitat Type Notes:
The primary survey habitat was salt marsh and adjacent Phragmites and groundsel, but upland forest with pitch pine, oaks, and black gum was also surveyed.
Elevation (meters):
0.5
Area Searched (hectares):
10
Artificial Light Sources
Vehicles: No
Street Lights: Yes
Buildings: Yes
athletic field lighting
Street Lights: Yes
Buildings: Yes
athletic field lighting
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:
During the survey, a fireworks display was visible in the direction of Seaside Heights, and tall athletic field lighting from Shelter Cove Park created significant glare.
Observation
Observation Type:
Flashing
Number Observed:
50+
Genus:
Pyractomena
Species:
ecostata
Observation Notes:
~13 mm long. Displaying at the farmhouse site marsh (39.9836, -74.1213), the "second marsh" (39.9896, -74.1185), and the "first marsh" (39.9844, -74.1281).
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:15
Last Flash Time:
22:45
First Flash Temp (F):
82
Last Flash Temp (F):
81
Flashes in Pattern:
1
Flash Color:
Green
Flash Pattern Period:
5.3
Flash Duration:
0.5
Flash Interval:
4.8
Male Height Zone:
Low (0-3 ft), Moderate (3-8 ft), High (over 8 ft)
Flash Location:
Over the salt marsh, at varying heights.
Male Flash Behavior:
Bright, long (~0.5 second) greenish flashes that drifted or bobbed vertically. Voice recordings of flash periods measured 5.5, 5.3 and 5.2 seconds.
Female Flash Behavior:
Not observed.
