Currently viewing the category: "Fireflies and Glowworms"
What's That Bug? does not endorse extermination

Subject:  Bug with eyelash type antenae?
Geographic location of the bug:  Portland, Oregon, USA
Date: 06/17/2018
Time: 09:17 PM EDT
Your letter to the bugman:  I’m very curious what this bug is as I have never seen one before and have lived here my whole life. It was on the outside wall of my house. It was small, maybe about a centimeter long, found in early June here in Portland, Oregon.
How you want your letter signed:  S. Wilson

Male Firefly

Dear S. Wilson,
This is a male Firefly and we believe we have correctly identified it as
Pterotus obscuripennis based on this BugGuide image.  According to BugGuide: “comes to lights in spring/early summer.”  Folks from the eastern and midwest parts of the country often miss Firefly displays when they move to the west coast, but they don’t realize there are many species of Fireflies there, though few have bioluminescent capabilities, and when they do, they rarely appear in the spectacular displays witnessed in other parts of the country.  Our editorial staff is currently enjoying glowing Fireflies, or Lightning Bugs as we always called them, in Ohio.

What's That Bug? does not endorse extermination

Subject:  Colorado Glowworm
Geographic location of the bug:  Sedalia, CO
Date: 06/11/2018
Time: 12:41 AM EDT
Your letter to the bugman:  Thanks for your thread on the CO Glowworm. I found three tonight in the weeds by our home in the foothills SW of Denver. We live at 7000′ just north of Woodland Park, south of Pine, and west of Rampart Range (all places mentioned in the thread.)
We’re new to the area, but none of the long-timers have ever seen anything like this.  I’m fascinated and terribly curious to learn more. Have you found any more info on these guys?
I’m attaching a pretty crappy picture fwiw. My good camera is with my son out of state. If I can find more next week, I’ll see if I can grab better pix.
How you want your letter signed :  Amy

Firefly

Dear Amy,
Though we would relish a better image of your insect, we do want to commend you on visually capturing both the insect itself as well as its bioluminescence.  Based on your image, which we believe to be of a pink larviform female, we surmise this is a Firefly from the genus
Microphotus, and while BugGuide does not list any sightings in Colorado, there are sightings in California, Oregon, Arizona, New Mexico and Texas, so the range might actually extend to Colorado.  Part of the confusion is that some literature refers to the California species Microphotus angustus as a Pink Glowworm, though it is actually a Firefly from the family Lampyridae.  Since we are constantly trying to clean up our archives, slowly making corrections, we are changing the name of the Glowworm posting you originally cited to correctly indicate this is a Firefly.  As an aside, our editorial staff is currently on holiday in Ohio where we have been enjoying nightly Firefly displays.

What's That Bug? does not endorse extermination

Subject:  Mysterious glowing multi-legged critter
Geographic location of the bug:  Terre Noire, Cape Breton, Nova Scotia, Canada
Date: 03/30/2018
Time: 05:01 PM EDT
Your letter to the bugman:  Photo taken at 9:26 pm (Atlantic time) September 27, 2017 at the brushy edge of my long rural driveway. On a number of nights, I saw a faint glow in several places on the ground as I was walking. When I investigated, I saw this character moving slowly and glowing at the edges of its sides. Never saw more than one at a time in any given spot, but some weren’t far from each other. I think it was approx 5-7cm long.
How you want your letter signed:  Andrew

Firefly Larva

Dear Andrew,
This sure looks to us like the larva of a Firefly, and since you did observe it glowing, your observation does lend credence to our identification.  Some Firefly larvae are capable of bioluminescence.

 

What's That Bug? does not endorse extermination

Subject:  Part Alien Bug Insect
Geographic location of the bug:  Memphis TN
Date: 02/25/2018
Time: 02:00 AM EDT
Your letter to the bugman:  After heavy rains  this fella came onto the porch to reach higher ground
How you want your letter signed:  CLWhite 33

Firefly Larva

Dear CLWhite 33,
This is the larva of a Firefly.  While many folks, including children, are familiar with the flying, bioluminescent adults that are also called Lightening Bugs, not many people recognize the larvae.

Thanks, so much I searched every where. I can now educate those around me. No one knew what it was.
What's That Bug? does not endorse extermination

Subject:  Brown, multi-plated, horned with extending proboscis, crawling insect
Geographic location of the bug:  Middle Georgia, USA
Date: 02/05/2018
Time: 04:06 PM EDT
Your letter to the bugman:  I sure hope someone can figure out what this insect is. Only one I’ve ever seen. Early February in a warmer than usual Winter. The Robins are already here for Spring. It is on an exterior polyester rug. Approximately one half inch long. Rolled up, perpendicularly to the concrete floor, almost to a closed circle when I moved it.
Thank you for your time and assistance.
How you want your letter signed:  Dan

Firefly Larva

Dear Dan,
This is the larva of a Firefly, or possibly a Net Winged Beetle larva, but we would favor the former.  Here is a BugGuide image for comparison.  The larvae of many species of Fireflies feed on snails and slugs.

What's That Bug? does not endorse extermination

Subject:  Caterpillar like black bug with red spots
Geographic location of the bug:  North Carolina
Date: 10/25/2017
Time: 09:22 PM EDT
Saw this in the bathroom on the floor at work today. Never saw one before and was curious to see what it was exactly. It appered to only have 6 legs and drag its rear behind. Took the pics and it was relocated outside where it belongs.
How you want your letter signed:  Gin

Glowworm

Dear Gin,
Had you turned out the lights, you would have seen this Glowworm phosphoresce with green light.  A glowing Glowworm, also known as a Railroad Worm, is an impressive sight.

What's That Bug? does not endorse extermination