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why they flash so repeatedly in jars).
A few species, most of them west of the Rocky Mountains, do not produce light as adults. One of these, Lucidota atra, can be seen commonly in the county on trees especially in the early spring. Unlike other species, this one typically overwinters as an adult and is active during the day.
Night glows
Another common species in the county is the pyralis firefly (Photinus pyralis), which is active from dusk to a few hours after. Males fly less than two meters above the ground and make a distinctive, yellow J-shaped signal. Others include species in the genera Photuris, which typically
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