Observation: Photuris congener

Observation: Photuris congener

Primary Observer:

Ellie Shultz

Event Date:

2026-09-09

Status:

Unreviewed

Survey

Site Name:

Blue Spring State Park

Province/State:

Florida

Event Date:

2026-09-09

Time of Day:

Night-Time

Start Time:

19:30

End Time:

21:05

Number of Observers:

5

Primary Observer:

Ellie Shultz

Additional Observers:

Kelly Del Valle, Michelle Wilbur, Nicholas Tardi, Joseph Vaughan

target_species_genus:

unknown

target_species_species:

unknown

Location and Habitat

Location Accuracy (meters):

>1000

Habitat Type:

Woodland/Forest - Trees dominant, and in the over-story

Habitat Type Notes:

-Mesic hardwood hammock by the spring run and behind the Thursby House. It is managed as naturally as possible. There may be occasional targeted herbicide use on invasive plants. -Open grassy lawn in front of the Thursby house, bordered by the hardwood hammock, spring run, St Johns River, and a parking lot. It does get mowed every week.

Elevation (meters):

21

Area Searched (hectares):

50

Artificial Light Sources

Vehicles: No
Street Lights: Yes
Buildings: Yes

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

Artificial Light Notes:

There was relatively little light pollution in the forested areas. However, the gift shop had lights on that reached to the edges of the forested area. On the Thursby lawn, there was a bright street light in the parking lot, and there was also glare from the restroom building.

Observation

Observation Type:

Without Flash Data

Number Observed:

50+

genus:

photuris

Species:

congener

Observation Notes:

We observed a few hundred of these on the forest floor throughout the survey area.

Specimen Voucher Number:

 

Flash Behavior

First Flash Time:

 

Last Flash Time:

 

First Flash Temp (F):

 

Last Flash Temp (F):

 

Flashes in Pattern:

 

Flash Color:

 

Flash Pattern Period:

 

Flash Duration:

 

Flash Interval:

 

Male Height Zone:

Flash Location:

 

Male Flash Behavior:

 

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