Alderflies, Dobsonflies, and Fishflies

Click on an image below to view the image at a larger size.

Corydalidae (Dobsonflies)

Hellgrammite (Corydalus cornutus)

Hellgrammite (Family: Corydalidae)

hellgrammite hooks

Prolegs and paired hooks at the posterior end of a hellgrammite.


Dobsonfly (Chauliodes sp.)


Fishfly portrait (Chauliodes sp)

Neohermes filicornis

Hellgrammite! This is Neohermes filicornis.

A quick note about permissions. I am more than happy for people to use my photos in presentations, educational materials, and websites, but please acknowledge me if you do.  All images posted on websites should include a link to this blog.  I spend a lot of time and effort photographing these insects, so please be kind and let people know where you got your images.  If you wish to use them in print materials, please leave a comment below (you will be asked to enter your e mail address, which only I will be able to see) and I will contact you by e mail regarding permission.  I keep the images I post here small and relatively low resolution to save space, but I can provide higher resolution, larger photos for print if desired.


Unless otherwise stated, all text, images, and video are copyright


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