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> > Some beetles in the scoop net today

JumpNotZero has attached these 2 pictures to aid in identification. The message is below.
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JumpNotZeroApril 6th, 2014, 12:40 am
In Cognito

Posts: 2
Like Corixa, but not quite...
What be these bugs?
Always quit when you're through.
TaxonApril 6th, 2014, 2:36 am
Site Editor
Plano, TX

Posts: 1311
I believe them to be Backswimmers, a close relative of Waterboatmen. Not Aquatic Beetles, but rather, Waterbugs.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
CrenoApril 6th, 2014, 1:01 pm
Grants Pass, OR

Posts: 301
They are true bugs (Hemiptera) within the Belostomatidae. Cannot see enough to decide genus. Be a little careful - they can "bite" - pierce ya with a big dull needle :-) Here is a link to a pic of the poker -
http://www.dfg.ca.gov/ABL/images2/belostoma_flumineum_beak.png
WiflyfisherApril 6th, 2014, 6:11 pm
Wisconsin

Posts: 622
The first one definitely looks like a Backswimmer (Family Notonectidae).
John S.
https://WiFlyFisher.com
TaxonApril 6th, 2014, 8:39 pm
Site Editor
Plano, TX

Posts: 1311
Hi Dave-

Be a little careful - they can "bite" - pierce ya with a big dull needle :-)


Yeah, ain't that the truth. Here is a photo I took of one several years ago:



The needle part of the beak is used to inject a toxic tissue-dissolving enzyme into the victim, which is shortly followed by sucking out all of the now dead prey's dissolved tissue. Doesn't sound like a particularly endearing experience. :-)
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
CrenoApril 6th, 2014, 11:22 pm
Grants Pass, OR

Posts: 301
Roger - I had one hit the heel of my hand. I didn't leave it there long enough to suck! Not that much scientific curiosity....... No parts fell off but took a couple weeks to heal. That ain't no mosquito bite.

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