Species Snapshot
TYPE:
Flashing firefly
GENUS:
Photuris
SIZE:
Medium (10 - 13 mm)
HABITAT:
Fencerows and trees bordering fields
MONTHS:
May, June, July
TIME:
45 minutes after sunset
Flash Pattern
P. tremulans
How to Understand the Flash Pattern image
The background of the image represents a common habitat where the firefly might be seen. The colored dots or dashes represent the flashes over time and across space (height and distance flown between flashes). Note the number of flashes, the timing in between flashes, and the color, duration, and shape of the flashes.
Note that the flash pattern will often get faster as the temperature rises.
Physical Appearance
P. tremulans
Size:
Pronotum:
(Head Shield)
Medium (10 - 13 mm)
Light yellow and red with a dark center shaped like an arrow, often expanded at base
Scutellum:
Dark
Elytra:
(Wing Covers)
Black with light yellow borders, sometimes stripe on each
Abdomen:
Thorax:
Eyes:
Dark brown
Brown
Large. Male's eyes are larger than the female's.
In abdominal segments 6 & 7. The segments are completely yellow in males. In females, the segments are yellow in the middle and brown on the edges.
Lanterns:
Legs:
Long. Dark close to body.
Map of Arkansas Sightings
P. tremulans
More information on IUCN Red List of Threatened Species