Firefly Reports from Colorado
Selected by Donald Ray Burger
Attorney at Law

To submit your own report email burger@burger.com
Please include your city/town and state, and the date of your sighting. Include as many details as you can, such as numbers of fireflies, location (rural/city/wooded area, etc), temperature, time, and so on. Thanks for helping with this project.

Below are reports from Colorado, listed in date order, alphabetically by city.

Bellevue:

July 17, 1999: A reader notes: Tonight, July 17,1999, at 9:30 pm I saw fire flies in Bellevue, Colorado. I saw several dozen in a field by the Cache La Poudre river. I didn't think fireflies were west of central Kansas. Do other people see them in Northern Colorado? Tonight I also saw fireflies in the field behind my friends' house. My friends had told me that there were fireflies behind their house and I didn't believe them. I had actually bet them a sizable wager they had no fireflies. I was wrong! This evening I say several dozen flies lighting up around their house. It was only the second time in my life I was able to see their glory! It gave me goose bumps of excitement and reminded me of seeing them out side of my aunt's house in Linn KS around 1985.

Boulder:

July 15, 2002: Stan Garnett writes: I have lived in Boulder, Colorado, since 1968 and in Colorado all of my forty-six years. I have never seen fireflies west of Central Kansas where I used to vacation as a child on my cousins' farm. Our home backs up on open space near South Boulder Creek. On the night of July 13, about 10 o'clock, my wife and I were enjoying the cool of the evening on our back porch. To our amazement, we saw several dozen fireflies scattered throughout the high grass of the open space (which is an irrigated pasture). We called our neighbors and all watched them on Sunday night, the 14th. When we excitedly told our 16 year old son, he replied, "Yeah, my friends and I have been seeing those out there for years. We didn't know they were any big deal." Have others seen fireflies in Colorado? Are they more prevalent this year because of the drought somehow (maybe, less spraying for mosquitoes).
July 22, 1999A reader notes: A friend of mine that lives in the same neighborhood I do (northeast Boulder, Colorado)told me about seeing fireflies in a marshy area near us. So, on July 6, 1999 my husband and I walked over around 9 PM and checked it out. There were probably a couple hundred flying over a marshy area. It was still a little bit light out, but it was easy to see the fireflies. We stopped by again last night (July 21, 1999) and saw them, although it didn't seem like there were as many. This is the first time I've ever seen fireflies in Colorado.

Boulder County:

June 24, 2002: A reader writes: I live in unincorporated Boulder County, Colorado, about 13 miles North East of Boulder. The run off from Boulder Creek goes through our property. Last night around 10:30 pm I was outside near the creek and saw a small but bright light flashing. I told my husband - he also saw it. He went closer to our fence and actually saw the firefly! Then it went away. I will watch for it again. As an "East coaster" I saw tons of them. It was very cool to see one in Colorado. Any comments? How unusual is this?

Fort Collins:

July 9, 2002: Melinda writes: My boyfriend and I were fishing at the Prospect Ponds in Fort Collins, Colorado, on both the 5th & 6th of July 2002. The Cache la Poudre River is approximately 1000 ft. from where we were located. Both nights the sighting occurred between 9:30 PM & 11:00 PM. The high temperature on both days had been around 90. On the 5th, I had seen a bug flying out of the corner of my eye that looked as though it was lit up. I disregarded the occurrence as "it must have been light reflecting off of it somehow from somewhere" and besides fireflies don't live in Colorado! In the 23 years of living here never seen one and had never heard of anyone here seeing one, that is until the next night. My boyfriend was walking on the path that goes between two of the ponds when he comes running back to the picnic table and tells me he had just seen a "lightning bug." I really didn't believe that what he had seen could even possibly be a firefly. I had always heard that they didn't live in the Western states, let alone Colorado. Upon seeing the reports of sightings in Colorado & more importantly in the general area of the where our event took place, it is actually quite convincing to me now that we actually did see them. Particularly the fact that the sightings have other similarities besides being in the general area, but also because most of the sightings happened near water (river, etc.). I've always wanted to see one. Hopefully I'll get to see one again. If I do, I won't dismiss it as - nothing. :)
June 26, 2002: A reader reports: I live in Fort Collins, Colorado, and have resided here for 28 years. I had seen fireflies in Missouri many years ago, but we have NEVER seen them here in my home town. We saw our first fireflies here in Fort Collins last night. My husband had gone fishing in the evening along the Poudre River, and came home a little after dusk with a jar full of the little guys! My children were enthralled! We let them go and watched them hang about the house for a few hours. We plan to go see my husbands fishing spot this evening, and see the whole swarm!

Loveland:

May 21, 2005: Andrew Barney notes: I read a report on fireflies in Wisconsin. The person writing thought it was too hot and dry here for them. If you are priviliged like me, you might see a few near the river on the bike trail here in Loveland, Colorado.
June 27, 1998: A reader reports: I haven't seen fireflies since leaving the midwest many years ago. Just went for a walk an hour after sunset and saw dozens of very bright (white-yellow) and often very fast moving fireflies. Not a chance of catching these! We're in a rural area near Loveland, Colorado, and we spotted an occasional firefly along an irrigation ditch, with dozens in an area near a small river. That area does have particular vegetation which might be a factor. It's been in the 80's and low 90's in the day times for the past week, and it was in the mid-70's when we saw them.

NE Boulder:

July 2, 2002: Mike Exner reports: The wetlands along Four Mile Creek, just north of the soccer fields in NE Boulder, Colorado, are alive again this year with thousands of the little bugs. I did not see them last year, but others in my neighborhood report seeing large numbers this time last year too. First time I can remember seeing them since I moved to Colorado in 1963.

Pueblo, West:

July 7, 2002: Ruth Frye notes: Saw your address when we looked up fireflies on Google. We were visiting our daughter and her family in Pueblo West, Colorado, for July 4. Because of drought here and numerous forest fires which have had us all living in a cloud of smoke for 2 weeks or more, many cities cancelled fireworks displays. Pueblo did have its usual show, but we thought we would see what we could from her deck. We did see a few bursts, but what we were really excited to see were fireflies! I have lived in Colorado all my life and had seen them only when we visited Upper Black Eddy, PA. The fireflies in Pueblo were either very few, or very bashful because we only saw about 10 flickers. Tried to stir up some more by walking through the grass, and brushing through the sunflowers, to no avail. We are clueless as to why they were here, but it was more exciting and a lot less noisy than fireworks. Perhaps someone else saw them and contacted you.
June 27, 2001: A reader reports: I live in Pueblo West, Colorado. Yesterday we e captured a firefly beetle. My brother and I were hanging out on my land and shootin' the breeze when he noticed a bright green pulsating flash on my roof. At first I thought the poor guy was loosing his marbles, but, as time passed I was also able to see the flash. He originally thought that the flash was from a garage opener that I had misplaced several months before, so I set up a ladder and went to investigate. I discovered this small beetle just glowing away and attempted to place a bottle over it. It soon took to the air and landed in a vacant field nearby. We were able to capture it there and now have it in a jar. Not only are the kids in the family amazed at how much light these beetles can produce, but my older brother, who is 42 years old, is quite intrigued with his new little buddy.

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