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passiveporcupine

(8,175 posts)
Mon Apr 11, 2016, 05:18 PM Apr 2016

anyone here good at insect identification?

Just found a creepy looking, big black insect crawling across my bathroom floor. I've been searching but the best I can come up with is it looks like a dragonfly naiad abdomen (only solid black) with head and thorax of a carpenter ant. About 7/8" long.

I can post a photo if you need to see it.

I do live right next to a creek (naiads live in water) and it's been a very wet spring and we are just crawling with insects right now. I've been here 18 years and have never seen an insect like this before.

It was pretty creepy, so I put it in alcohol, and it's dead...but then finding out it looked like some kind of naiad, it bothers me that I might have killed something I shouldn't have. It does not have wings, or a head like a dragonfly. The ant head is why I killed it. I do have carpenter ants here and whatever this is, it looks like it's in the ant family, but I can't find anything in ants with an abdomen like this.

dragonfly naiad


carpenter ant


I'm in the Columbia River gorge area, in the mountains. Hope someone can help.

21 replies = new reply since forum marked as read
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anyone here good at insect identification? (Original Post) passiveporcupine Apr 2016 OP
Are the antennae straight/curved, or jointed like an ant? SeattleVet Apr 2016 #1
It looks like the antennae are jointed in the middle passiveporcupine Apr 2016 #2
How about a house cricket? PufPuf23 Apr 2016 #3
No cricket passiveporcupine Apr 2016 #4
It's a dragon fly larvae. Do google image search. nt flamin lib Apr 2016 #5
The picture I showed is a dragonfly larvae (naiad) passiveporcupine Apr 2016 #6
No, and quit bugging me! KamaAina Apr 2016 #7
OK LOL passiveporcupine Apr 2016 #20
salmonfly? handmade34 Apr 2016 #8
Not salmon or stone fly passiveporcupine Apr 2016 #9
A photo would be most helpful! intheflow Apr 2016 #10
I can't upload my pics. passiveporcupine Apr 2016 #11
Nevermine, it's letting me do it passiveporcupine Apr 2016 #12
I came across this while looking for bugs passiveporcupine Apr 2016 #13
Okay, now I can identify it easily pinboy3niner Apr 2016 #19
Thanks passiveporcupine Apr 2016 #21
maybe...? handmade34 Apr 2016 #14
I agree Raissa Apr 2016 #15
I think this is a very good guess. intheflow Apr 2016 #17
This is not it, but almost. You got me looking at beetles passiveporcupine Apr 2016 #18
Does it make a sound like someone rattling a can of plums? jpak Apr 2016 #16

SeattleVet

(5,477 posts)
1. Are the antennae straight/curved, or jointed like an ant?
Mon Apr 11, 2016, 05:31 PM
Apr 2016

Might be one of the earwig species if the antennae don't look jointed like the ant above. Earwig antennae look like they are made of lots of little segments. Google 'earwig identification' and see if that doesn't look like what you found.

passiveporcupine

(8,175 posts)
2. It looks like the antennae are jointed in the middle
Mon Apr 11, 2016, 05:45 PM
Apr 2016

This is no earwig. I've hated earwigs all my life and this guy is over twice the size of any earwig I've ever seen. Nothing on the end of the abdomen, and the abdomen is about 5/16" wide. I just put it on a paper towel and it looks like there could be wings forming on the top 1/3 of the abdomen, but if they are wings, they look like beetle wings and they are not separated from the abdomen yet.

I'll see if I can get a decent picture. I'll have to charge my camera battery first.

Now that I'm looking at it on the paper towel, I can see the antennae are moniliform, and not segmented in the middle, but curved.

PufPuf23

(8,791 posts)
3. How about a house cricket?
Mon Apr 11, 2016, 06:03 PM
Apr 2016
https://en.wikipedia.org/wiki/House_cricket

image:

They range from brown to black.

I live in westside Douglas-fir forest and get black house crickets (and they do like to come in one's house, usually solitary).

passiveporcupine

(8,175 posts)
4. No cricket
Mon Apr 11, 2016, 06:12 PM
Apr 2016

I love crickets and get big camel house crickets here, but this is closer to a termite king with an ant head and thorax than anything I've found yet. And it's way too big to be a termite.

passiveporcupine

(8,175 posts)
6. The picture I showed is a dragonfly larvae (naiad)
Mon Apr 11, 2016, 06:43 PM
Apr 2016

Last edited Mon Apr 11, 2016, 08:08 PM - Edit history (1)

That's not what I have.

I called a local entomologist. My camera battery is still charging, but he wants me to send him a picture. I will post one here too. He may even want the body.

Maybe it's a new bug and they will name it after me?

Edited to say, I'm praying it is not a dragonfly naiad. I will never forgive myself for killing it first and identifying it later if I've killed a beautiful dragonfly!

passiveporcupine

(8,175 posts)
9. Not salmon or stone fly
Mon Apr 11, 2016, 09:25 PM
Apr 2016

They are too skinny in the abdomen. This guy has a big fat abdomen.

I won't be posting pictures. Photobucket is trying to give me a virus or malware and I can't get it to work right anyway...I am having computer problems and may be infected with crap already.

Sorry about that.

I'll let you know when I get an answer back from the entomologist.

I was hoping we had an entomologist here, but I guess not. Some good guesses though!

intheflow

(28,477 posts)
10. A photo would be most helpful!
Mon Apr 11, 2016, 09:27 PM
Apr 2016

If you have a photo, you can also try doing a google reverse image search. If you don't know how to do that, I can give instructions.

passiveporcupine

(8,175 posts)
11. I can't upload my pics.
Mon Apr 11, 2016, 09:33 PM
Apr 2016

Photobucket is screwing up for me and trying to give me malware. I actually uploaded the pics to photobucket, but cannot edit them for size to use here. Maybe I should try to just put them in origianal size? Is there a size limit for posting images here?

passiveporcupine

(8,175 posts)
13. I came across this while looking for bugs
Mon Apr 11, 2016, 09:53 PM
Apr 2016

You gotta watch till the three and a half minute mark, at least. I feel sorry for the Mantis though. I don't think I would have let my cat do this.

intheflow

(28,477 posts)
17. I think this is a very good guess.
Tue Apr 12, 2016, 01:43 PM
Apr 2016

Definitely looks like the same but. Doesn't look like much loss for the OP to have killed it.

passiveporcupine

(8,175 posts)
18. This is not it, but almost. You got me looking at beetles
Tue Apr 12, 2016, 02:27 PM
Apr 2016

Which I wasn't looking at before, because no wings...well it has wings, but they are very short and it doesn't look like wings.

It is similar to the Devil's horse coach, but it's called a short-winged blister beetle.



Thanks so much...I haven't heard back from the entomologist yet. I'll send him another email and ask him if this is it.



can exude a chemical from its leg joints that literally causes blisters on human skin
I'm so glad I didn't want to touch it!

The front wings (called elytra) cover part of the abdomen, but there are no hind wings and the beetle is unable to fly.


http://northeastnaturalist.blogspot.com/2012/03/blister-beetle.html
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