Observation: Photinus pyralis

Observation: Photinus pyralis

Primary Observer:

Miranda Adams

Event Date:

2026-07-29

Status:

Unreviewed

Survey

Site Name:

Ray Harral Nature Park

Province/State:

Oklahoma

Event Date:

2026-07-29

Time of Day:

Night-Time

Start Time:

19:30

End Time:

21:00

Number of Observers:

4

Primary Observer:

Miranda Adams

Additional Observers:

Aleia, Beth, Korbin, Chantry

target_species_genus:

photinus

target_species_species:

pyralis

Location and Habitat

Location Accuracy (meters):

0-25

Habitat Type:

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

Habitat Type Notes:

Oak Hickory forest.

Elevation (meters):

188

Area Searched (hectares):

0.080901

Artificial Light Sources

Vehicles: Yes
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): No

Artificial Light Notes:

Outdoor lighting from neighborhood houses, Path lighting in front of the nature center, parking lot lighting, and vehicles. Light spill from inside the nature center.

Observation

Observation Type:

With Flash Data

Number Observed:

50+

genus:

photinus

Species:

pyralis

Observation Notes:

Specimen is approximately 1.5 inches, observed flashing low in the forest in an area with an open understory.

Specimen Voucher Number:

1

Flash Behavior

First Flash Time:

20:04

Last Flash Time:

21:00

First Flash Temp (F):

88

Last Flash Temp (F):

84

Flashes in Pattern:

2

Flash Color:

Yellow

Flash Pattern Period:

6

Flash Duration:

>1

Flash Interval:

6

Male Height Zone:

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

Flash Location:

Flashes were primarily around 4ft high, with some flashes lower and some flashes higher.

Male Flash Behavior:

Male flashed in a swooping motion with approximately 6 seconds between flashes. Most males flashed twice but some were observed to flash more.

Female Flash Behavior:

A female was observed on a low plant; she was seen to flash twice for less than a second each, with only a few seconds between flashes. The male was observed flashing before landing with the female, and mating behavior was observed.

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