Observation: Photinus

Observation: Photinus

Primary Observer:

Richard Joyce

Event Date:

2026-05-12

Status:

Unreviewed

Survey

Site Name:

North Carolina Botanical Garden- Streamside Trail

Province/State:

North Carolina

Event Date:

2026-05-12

Time of Day:

Night-Time

Start Time:

20:06

End Time:

21:25

Number of Observers:

27

Primary Observer:

Richard Joyce

Additional Observers:

Various Firefly Field Night participants

target_species_genus:

unknown

target_species_species:

unknown

Location and Habitat

Location Accuracy (meters):

25-50

Habitat Type:

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

Habitat Type Notes:

Forest along a creek, with sycamore, locust, pawpaw, American beech, hard maple, black walnut, Virginia creeper, poison ivy, clover, May apple, and snakeweed.

Elevation (meters):

81

Area Searched (hectares):

0.15

Artificial Light Sources

Vehicles: No
Street Lights: No
Buildings: No

Artificial Light Types

Sky Glow (diffuse illumination in the sky): No
Light Trespass (light cast on surfaces beyond its intended target): No
Glare (bright light causing visual discomfort): No

Artificial Light Notes:

The tree canopy was fairly closed, so there may have been sky glow that was not detected.

Observation

Observation Type:

Without Flash Data

Number Observed:

2-10

genus:

photinus

Species:

unknown

Observation Notes:

A Photinus consanguineus complex female was caught from low vegetation around 9:05 PM. A flash dialogue seemed to have taken place in the area around the female before we caught her. A flash timing voice recording showed very variable flash pattern periods, ranging from 1.5 seconds to 13.1 seconds; this may have been because flashes were actually from multiple individuals or because a female was flashing irregularly. mGDD accumulation= 973 (Chapel Hill 2 W station. 86/50 F formula)

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