Observation: Photinus pyralis

Observation: Photinus pyralis

Primary Observer:

Richard Joyce

Event Date:

2024-06-03

Status:

Unreviewed

Survey

Site Name:

Kings Mountain State Park, Lake York

Province/State:

South Carolina

Event Date:

2024-06-03

Time of Day:

Night-Time

Start Time:

20:27

End Time:

22:49

Number of Observers:

5

Primary Observer:

Richard Joyce

Additional Observers:

David Eargle, Bart Joy, Davis Joy, Andrew Lazenby

Target Species Genus:

Photuris

Target Species Species:

forresti

Location and Habitat

Location Accuracy (meters):

50-100

Habitat Type:

Riparian - Areas Along lake or stream

Habitat Type Notes:

This survey covered multiple habitat types, including riparian vegetation, mixed pine and hardwood forest, and open grassy wetland. The area where Photuris forresti were observed was dominated by a grass (genus Leersia), with scattered willow trees.

Elevation (meters):

213

Area Searched (hectares):

0.9

Artificial Light Sources

Vehicles: 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): No
Glare (bright light causing visual discomfort): No

Artificial Light Notes:

The only ALAN was sky glow from the greater Charlotte region.

Observation

Observation Type:

Flashing

Number Observed:

50+

Genus:

Photinus

Species:

pyralis

Observation Notes:

 

Specimen Voucher Number:

Flash Behavior

First Flash Time:

20:27

Last Flash Time:

21:00

First Flash Temp (F):

77.5

Last Flash Temp (F):

77

Flashes in Pattern:

1

Flash Color:

Yellow

Flash Pattern Period:

6

Flash Duration:

0.5-1

Flash Interval:

5-5.5

Male Height Zone:

Low (0-3 ft), Moderate (3-8 ft)

Flash Location:

Flashing at knee to head height in the understory, both in upland and wetland areas.

Male Flash Behavior:

Slow, rising flashes about every 6 seconds.

Female Flash Behavior:

Not observed.

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