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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Predaceous Diving Beetles (Dytiscidae) » Dytiscinae » Dytiscus » Larvae (Dytiscus Larvae)
Photo#621069
spiny tail hammerhead bug - Dytiscus
Copyright © 2012 mikelly

spiny tail hammerhead bug - Dytiscus
Boundary Waters Canoe Area Wilderness E of Ely, Lake County, Minnesota, USA
June 25, 2008
Size: 2.5"
Saw this bug going across a dirt road in the BWCAW. Can you help me identify it?
approx. date
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Contributed by mikelly on 18 March, 2012 - 2:02am
Last updated 22 March, 2012 - 1:35am

Moved
Moved from Predaceous Diving Beetles.
… Tim Loh, 22 March, 2012 - 1:35am login or register to post comments

cropped & moved for expert att'n; dytiscid larva
pls add sighting date
fully grown larva, probably a Dytiscus looking for a good spot to pupate (they do it in the soil) -- compare
Moved from ID Request.
… v belov, 18 March, 2012 - 2:10am login or register to post comments

 
spiny tailed hammer head
Thank you so much! I think you are absolutely right - it's a predacious diving beetle larvae - out of the water! Much appreciated...
… mikelly, 18 March, 2012 - 3:08am login or register to post comments

 
you're welcome
still, i'd like to have a date and exact location... is there a Boundary Waters County in MN? can't find it :/
… v belov, 18 March, 2012 - 5:27am login or register to post comments

 
Spike tail hammer head
The photo was taken in late June of '08 just E of Ely, MN in the Boundary Waters Canoe Area Wilderness (BWCAW) by Lake One - that's around Lake County and Cook County in Minnesota... Asked some DNR, NPS and US Fish and Wildlife Service folks what this bug was, and they all guessed a Hellgrammite. I didn't think it was a Hellgrammite - it's been bugging me!
… mikelly, 18 March, 2012 - 1:19pm login or register to post comments

 
thanks for the details
i'll edit the form to incorporate the data
… v belov, 18 March, 2012 - 1:28pm login or register to post comments

 
Spiney tail hammer head
Thank you!
… mikelly, 18 March, 2012 - 2:21pm login or register to post comments

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