Observation: Pyractomena borealis

Observation: Pyractomena borealis

Primary Observer:

Emma Despland

Event Date:

2026-06-09

Status:

Unreviewed

Survey

Site Name:

camping plage des sables

Province/State:

Quebec

Event Date:

2026-06-09

Time of Day:

Night-Time

Start Time:

21:45

End Time:

22:15

Number of Observers:

1

Primary Observer:

Emma Despland

Additional Observers:

 

target_species_genus:

unknown

target_species_species:

 

Location and Habitat

Location Accuracy (meters):

25-50

Habitat Type:

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

Habitat Type Notes:

Plantation of red and jack pines in a campground, tended lawn in understory - place for installing tents. No fireflies in open field nearby (where there is more light).

Elevation (meters):

150

Area Searched (hectares):

0.1

Artificial Light Sources

Vehicles: No
Street Lights: No
Buildings: Yes

Artificial Light Types

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

Artificial Light Notes:

In a campground, fireflies seen under cover of red and jack pine plantation (trees ca 8 m) where somewhat darker. A lit building about 20 m away.

Observation

Observation Type:

With Flash Data

Number Observed:

2-10

genus:

pyractomena

Species:

borealis

Observation Notes:

Species identity not confirmed, based on behavior only. Short flashes at 3 sec intervals with movement in between - about 50 - 100 cm distance between subsequent flashes. Slight movement trail. Fireflies seen at mid trunk up to canopy of pine trees (about 3- 6 m up).

Specimen Voucher Number:

Flash Behavior

First Flash Time:

21:45

Last Flash Time:

22:15

First Flash Temp (F):

65

Last Flash Temp (F):

65

Flashes in Pattern:

1

Flash Color:

White

Flash Pattern Period:

3 sec

Flash Duration:

0.1

Flash Interval:

3

Male Height Zone:

High (over 8 ft)

Flash Location:

Under cover of trees in pine plantation, mid trunk to canopy height.

Male Flash Behavior:

 

Female Flash Behavior:

none observed

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