Friday Beetle Blogging: a non-glowing firefly

Lucidota atra, the black firefly.  New York.

Lucidota atra, the black firefly. New York.

Not all fireflies luminesce.  Lucidota atra is a day-flying species, common in eastern North America, with vestigial light-producing organs.

photo details: Canon MP-E 65mm 1-5x macro lens on a Canon EOS D60

ISO 100, 1/200 sec, f/13, flash diffused through tracing paper

More like this

Chrysochus auratus - Dogbane Leaf Beetle New York At first glance one might mistake the dogbane leaf beetle for a creature of the tropical jungle, an exotic jewel sought after by the most discerning of collectors.  But no.  It's a rather common beetle in northeastern North America, where it…
Ceruchus piceus - Stag Beetle - New York photo details: Canon MP-E 65mm 1-5x macro lens on a Canon EOS D60 ISO 100, 1/200 sec, f/13, flash diffused through tracing paper
Nemognatha Blister Beetle, California. Some of the oddest blister beetles in western North America are in the genus Nemognatha.  Their mouthparts have become elongate to form a proboscis- a common trait among other groups of insects- but rare among the beetles.  They are commonly seen on…
Here's an old shot from the files: Formica aerata- the grey field ant- California photo details: Canon MP-E 65mm 1-5x macro lens on a Canon EOS D60 ISO 100, 1/200 sec, f/13, flash diffused through tracing paper

I didn't know NY had fireflies. I used to live in PA back in the mid 80s as a kid. I caught them, but they died overnight. I didn't know what to feed them and stuff. I was mean and loved to step on them to see their glow blood. :(

I grew up in Queens, NY... and yup, even in the city there were plenty of them.

It'd be neat to look and measure how well the vestigial light-producing organs are supplied with tracheae. I'd predict much less so than in sister species that haven't given up their glow, but it'd be nice to know.

Thanks for posting this, Alex. I'm working (slowly) on a book about fireflies in nature and human culture for a general audience. It is a popular myth that all fireflies glow, and another popular myth that there are no fireflies west of the Rockies. I grew up in Oregon, and our most common fireflies, in the genus Ellychnia are likewise day-active and non-luminescent. Keep up the great work!