Like other fireflies, *P. hebes* is known for its ability to produce light (bioluminescence) which is used for communication and attracting mates. The light is produced in a light organ located on the underside of the abdomen.
*P. hebes* adults are active during the summer months and are often seen flying around at night, especially in warm, humid weather. The flight pattern of *P. hebes* is characterized by a series of short, rapid flights followed by a longer period of hovering.
The larvae of *P. hebes* are also bioluminescent and can be found living in damp areas such as meadows, forests, and wetlands. The larvae are typically long and slender and have a soft body. They are nocturnal and feed on snails and other small invertebrates.
*P. hebes* is an important part of the ecosystem and plays a role in pollinating plants and controlling the population of snails and other small invertebrates.