הזיהויים של dr_firefly

I have observed numerous Ellychnia californica along the banks of the Santa Ana river in the flowering vegetation.

Firefly expert Marc Branham of the University of Florida in Gainesville said there are 18 known species of fireflies in California, compared with 56 species in Florida, and 2,200 described species worldwide. “As you go west in the U.S., there are many fewer fireflies.
He added that many of the fireflies on the West Coast are bioluminescent only when they are in the larval stage. By the time they grow into adulthood, they no longer glow.
“West of western Kansas, it is very rare to see flashing fireflies,” he said. “And even the ones that do glow can be very small and their glow can be so faint that it is difficult to see.”
Though California Glowworm is the common name for Ellychnia californica, this beetle is actually a Diurnal Firefly. According to BugGuide it is found: “Throughout CA, but seems to be more common from Sacramento south to the San Bernardino Mountains” and the habitat it favors is “on flowers and grassy vegetation, esp. in moist habitats.” These glowing larvae are in the family Phengodidae.