Observation: Photinus knulli
Primary Observer:
Tony Palmer
Event Date:
2026-08-10
Status:
Unreviewed
Survey
Site Name:
Rock Corral Canyon
Province/State:
Arizona
Event Date:
2026-08-10
Time of Day:
Night-Time
Start Time:
21:21
End Time:
22:30
Number of Observers:
3
Primary Observer:
Tony Palmer
Additional Observers:
Gwen Erdosh, Lohit Garikipati
target_species_genus:
photinus
target_species_species:
Location and Habitat
Location Accuracy (meters):
0-25
Habitat Type:
Shrub/Scrub - Arid, shrubs present and abundant
Habitat Type Notes:
Kidneywood, Velvet Mesquite, Desert Cotton, Hopbush, Gooding's Ash, Deergrass, Desert Willow
Elevation (meters):
1122
Area Searched (hectares):
0.1109
Artificial Light Sources
Vehicles: No
Street Lights: No
Buildings: No
Street Lights: No
Buildings: No
Artificial Light Types
Sky Glow (diffuse illumination in the sky): Yes
Light Trespass (light cast on surfaces beyond its intended target): No
Glare (bright light causing visual discomfort): 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:
With Flash Data
Number Observed:
11-50
genus:
photinus
Species:
knulli
Observation Notes:
Washes and dry upland areas.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
21:30
Last Flash Time:
21:45
First Flash Temp (F):
73
Last Flash Temp (F):
72
Flashes in Pattern:
2
Flash Color:
Green
Flash Pattern Period:
12
Flash Duration:
.5
Flash Interval:
.5
Male Height Zone:
Low (0-3 ft), Moderate (3-8 ft)
Flash Location:
in vegetation and in open areas of washes and uplands.
Male Flash Behavior:
2 flashes, sequences 6-12 seconds apart.
