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

Subject:  Lacewing?? Not sure
Geographic location of the bug:  Puslinch, Ontario, canada
Date: 07/10/2020
Time: 11:50 PM EDT:  We don’t often see really large bugs in our area. And I’ve never seen this bug before around our property. It was just sitting on the side of our gazebo in the sun for hours and hours. I thought it might be a lacewing of sorts but it’s antennae don’t look right as this guy has the feathered type rather than the clubbed.
How you want your letter signed:  Karen Gray

Fishfly

Dear Karen,
This is a Fishfly in the genus
Chauliodes.  Its feathered antennae distinguish it from its larger relative, a Dobsonfly.

What's That Bug? does not endorse extermination

Subject:  Long flying bug
Geographic location of the bug:  SOutheastern PA
Date: 07/11/2020
Time: 06:48 PM EDT
Your letter to the bugman:  What’s this scary looking critter? Not a super good flyer.
How you want your letter signed:  Jon Kern

Female Dobsonfly

Dear Jon,
We love this unusual camera angle you used to depict this female Dobsonfly.  Dobsonflies are one of our most common summer identification requests.  Male Dobsonflies are even more impressive looking.

What's That Bug? does not endorse extermination

Subject:  bug with armor plate shield and pincers
Geographic location of the bug:  Sedona Arizona
Date: 06/19/2020
Time: 03:16 PM EDT
Your letter to the bugman:  Spotted this bug on window trim behind a planter and thought it was a grasshopper, but at closer look saw this cool looking bug with what looks like an armor shield plate and silvery looking design across its head. Never seen anything like it. But what IS it?
How you want your letter signed:  Lea

Female Dobsonfly

Dear Lea,
This is a female Dobsonfly, and because of your location, we believe it is 
Corydalus texanus which is pictured on BugGuide.

Thank you for your response.
Yes that’s it.
It’s been hanging out in th at same spot on the window trim outside my front door for about a week.Hasn’t moved. Maybe getting bugs when they come toward the night light. Humm.
Don’t know what it’s eating but it’s hanging on. It’s a shaded spot even when the sun’s out and sometimes it/she turns her head when I check on her. Can’t figure out what she’s waiting for but must feel safe as the spot is behind a hanging planter away from predictors.
So I guess I’ll name her Scooby Doo.

We are pretty certain Dobsonflies do not feed as adults.  Perhaps she is conserving her energy until she mates.

What's That Bug? does not endorse extermination

Subject:  Large insect
Geographic location of the bug:  South East Ontario, canada
Date: 07/29/2019
Time: 08:05 PM EDT
Your letter to the bugman:  This creature flew into my garage with very large wings, and a creepy looking head.  I have no idea what to class this insect as.  It looks vicious.  I hope the pictures help with identification.
Thanks,
How you want your letter signed:  Michael Steele

Male Dobsonfly

Dear Michael,
Despite his large size and impressive mandibles, this male Dobsonfly is perfectly harmless.

What's That Bug? does not endorse extermination

Subject:  Dobson fly?
Geographic location of the bug:  Piseco lake, NY. (Adirondacks)
Date: 07/23/2019
Time: 08:03 PM EDT
Your letter to the bugman:  Hi!
This interesting creature was like looking through a microscope, only… I wasn’t.  This is a standard sized brick it is sitting on. Seen mid July on a very rainy day. There were several on the wall of the building. My guess after a bit of research would be Dobson fly?  Thank you!
How you want your letter signed:  Jamie

Female Dobsonfly

Hi Jamie,
You are correct that this is a female Dobsonfly.  We posted numerous images yesterday of both Dobsonflies and related Fishflies, a clear indication the hottest days of summer have arrived.

What's That Bug? does not endorse extermination

Subject:  Borer Beetle?
Geographic location of the bug:  Ayr, Ontario
Date: 07/24/2019
Time: 09:41 PM EDT
Your letter to the bugman:  Saw this guy on the side of our house at the end of July. About 4”-5” long.
How you want your letter signed:  Alex

Female Dobsonfly

Hi Alex,
We are being bombarded with identification requests for Corydalids today, but your image is the first we have received of a female Dobsonfly, and the image is so beautiful, we have to format it for posting.  Though the mandibles of the male Dobsonfly look much more frightening, they are specialized for allegedly fighting off other males as well as during mating, but they are not useful for either eating or defending from a threat.  The mandibles of the female Dobsonfly are much more utilitarian, and she can easily defend herself by painfully nipping at a threat, including a person, but the bite is not dangerous.  Adult Dobsonflies do not eat.

Hi Daniel,
Thanks for the quick response! Your website has created a whole new world of backyard research for me. I’ve been doing lots of reading on these guys since I saw your response.
Feel free to use my picture for anything that you might need.
Cheers,
Alex

Hi again Alex,
We are happy to hear our site has inspired you to do more research into the wonderful creatures that surround you.

What's That Bug? does not endorse extermination