Thanks Mike and Dave. Mike, that chart is very illuminating. I had no idea 
there were that many species. Amber seems a good way to describe what I saw as 
red.  It seems a monumental brain task to sort out all the flashing going on 
but just having these different parameters in mind would help you to see 


Sent from my iPhone

On Jun 29, 2014, at 12:23 AM, Mike Pitzrick <> wrote:

> Hi Linda,
> In order for a Doppler shift to noticeably change the color of light that 
> much, the firefly would have to be traveling thousands of miles an hour!  It 
> may be that what you are seeing are multiple species of firefly.  
> The Museum of Science in Boston has published some web pages with information 
> about how to identify fireflies using their flash color and pattern.
> Types Of Fireflies
> Flash Chart
> Virtual Habitat (interactive tool to help you learn to identify firefly 
> flashes)
> These web pages are part of a citizen science project called Firefly Watch, 
> which is designed to find out more about the distribution of the various 
> firefly species.
> -Mike
> On Sat, Jun 28, 2014 at 10:49 PM, Linda Orkin <> wrote:
> Does anyone else notice that some of the flashes look like different colors. 
> Reds and greens. Is this just like a Doppler shift type thing or are they 
> really like that?
> Linda
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