Observation: Photuris forresti

Observation: Photuris forresti

Primary Observer:

GA DNR

Event Date:

2026-05-16

Status:

Verified

Survey

Site Name:

Mill Creek Nature Center

Province/State:

Georgia

Event Date:

2026-05-16

Time of Day:

Night-Time

Start Time:

20:38

End Time:

22:30

Number of Observers:

9

Primary Observer:

GA DNR

Additional Observers:

Reagan, Mason, Chris, Arata, Karen, Suzy, Jolie, Enrique, Erica

target_species_genus:

photuris

target_species_species:

forresti

Location and Habitat

Location Accuracy (meters):

25-50

Habitat Type:

Open Freshwater Wetland - Wetland Bog, fen, freshwater marsh

Habitat Type Notes:

 

Elevation (meters):

308

Area Searched (hectares):

1

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:

We were right by the Mall of GA, but glare and light trespass weren't noticed since we were down an embankment. Skyglow was pretty bright.

Observation

Observation Type:

With Flash Data

Number Observed:

11-50

genus:

photuris

Species:

forresti

Observation Notes:

They're so many Loopy 5s here that it was hard to get flash patterns. Quick flashes and then loop up and back down. I didn't include the dark phase in the flash pattern period because there were so many it was impossible to follow an individual for long enough. There were also Loopy 5s all around flashing. Used Reagan's voice recording MCNC 2 for flash pattern. This was technically caught in the MCNC 3 voice recording, but I didn't get a good flash pattern in that one.

Specimen Voucher Number:

18

Flash Behavior

First Flash Time:

21:20

Last Flash Time:

21:30

First Flash Temp (F):

75

Last Flash Temp (F):

75

Flashes in Pattern:

>4

Flash Color:

Green

Flash Pattern Period:

2.87

Flash Duration:

0.11

Flash Interval:

0.33

Male Height Zone:

Moderate (3-8 ft)

Flash Location:

About 6-7 ft up. Over the wetland.

Male Flash Behavior:

4-5 quick flashes and then flashed up and down.

Female Flash Behavior:

 

Leave a Comment

Connect

Sign up for our newsletter to receive updates.

Follow

Follow the Xerces Society.

Share

Share this page.

Support

Support the Xerces Society's conservation work.

This is a project of the Xerces Society, working in collaboration with the IUCN SSC Firefly Specialist Group and New Mexico BioPark Society.

Copyright © 2026 The Xerces Society •1631 NE Broadway Street, #821 • Portland OR 97232 USA
Firefly logo by Ink Dwell studio; © 2020 Jane Kim