Observation: Photinus knulli

Observation: Photinus knulli

Primary Observer:

Kathy West

Event Date:

2024-07-26

Status:

Verified

Survey

Site Name:

Patagonia-Sonoita Creek site 2 by Visitor Center

Province/State:

Arizona

Event Date:

2024-07-26

Time of Day:

Night-Time

Start Time:

20:30

End Time:

20:40

Number of Observers:

2

Primary Observer:

Kathy West

Additional Observers:

Jac Heiss

Target Species Genus:

Photinus

Target Species Species:

knulli

Location and Habitat

Location Accuracy (meters):

0-25

Habitat Type:

Grassland/Meadow - Meadow, open, grasses dominant

Habitat Type Notes:

Dominant species Johnson Grass, mullein; recently mowed

Elevation (meters):

1210 m

Area Searched (hectares):

4 hectare field, only counted fireflies with in 6 meters

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:

 

Observation

Observation Type:

Flashing

Number Observed:

2-10

Genus:

Photinus

Species:

knulli

Observation Notes:

most flying about 2-3 meters above grass.

Specimen Voucher Number:

Flash Behavior

First Flash Time:

20:30

Last Flash Time:

20:40

First Flash Temp (F):

81.5

Last Flash Temp (F):

81.5

Flashes in Pattern:

2

Flash Color:

Yellow

Flash Pattern Period:

1

Flash Duration:

1

Flash Interval:

2

Male Height Zone:

Moderate (3-8 ft)

Flash Location:

Above grass field

Male Flash Behavior:

Noted mostly 2 sometimes 3 flashes in most of the fireflies seen. Flew a little higher each flash

Female Flash Behavior:

none observed

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

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