Bug ID

[Ant]

Posted this on another site. No help so far.

So I figured I would try here as well.

Found stuck to the bottom of my pontoon on the D.

Check out the wing case and cool wing structures.



Thanks
Ant

 

[NJDrew]

Im not one to normally guess at the ID of an insect, but I would guess it might be some family of caddisfly (Trichoptera).

 

[cingras53]

Golden stonefly. Am I wrong?

 

[podobed45]

i'm saying it is in the caddis family with the wing shape *near tent like*

however, i've yet to see one that dark

 

[cingras53]

That's no caddis. I'm looking at the long segmented body and the prominent legs. Where is Joe T when you need him

 

[emerger]

I think it might be a cranefly.

 

[Fly Tier]

How about some sort of Mosquito. Whats coming off its head? If you had to tie it, what hook size would you use?

 

[sstasiak]

That looks more like a cocoon than any type of nymph shuck or caddis pupae...no idea what it might be though.

 

[cingras53]

I think Emerger is right. It looks like a cranefly. It seems to be coming out of that cocoon so it can't be a stone fly. If you ggogle the crane fly you can imagine this thing ending up like the winged adult show on the other sites. Emerger looks like the winner.

 

[sandfly]

Sorry gents its a beetle of some sort. look at the wing hard outer wing.curved over back. probally laying eggs in cocoon. I'd have to do more research for the proper name though..there are alot of terrestrial beetles that hatch and lay their eggs in water....

On the other hand the eyes look alot like lead eyes...could be a realalistic. imitation..

 

[rford]

I am 100 % sure it is an insect!

 

[Pete]

If it weren't for those beetle-like wing cases, I'd guess it was a species of Parasitoid wasp, that lays eggs in the larval and/or pupal stage of various catapillars.

 

[Ant]

Stoneflies don't have wing cases do they?

The oned thing that throws me on this bug is the wing case.
I think beetle type when I see it.

Wasps don't have them, I don't believe.

Hmmm

Ant

 

[Ant]

My thread on another site brought Soldier Beetle as a possibility.

Looking into it.

Ant

 

[rckrego]

I can assure you its no caddis or crane. Probably a stone. Maybe and alder or dobson? Post the pictuer on troutnut.com. He'll be able to answer the question.

 

[cingras53]

I forwarded the pictures to a Professor of Entomology who may be fishing in Montana for 6 weeks. He'll know what it is for sure. It may take a while.

 

[Ant]

Thanks guys.

I looked into trout nut, but I think you need a place to host pics.

Ant

 

[rckrego]

the cocoon really makes me think its an alder or dobson... one of the flies that comes from helgrammites.

 

[Fly Tier]

I would have to eliminate a Dobson from the equation. Doesnt look anything like one. Ask Green Highlander, Dobsons GH's favorite hatch. I had a dopson in a fly box about two years ago. Laid its eggs in a fuzzy mess that didnt look like this either. Could that cocoon be throwing it off? Poster said it was off his pontoon on the D. Was the pontoon sitting around for a while?> Was the cocoon on it and this insect just got caught up in the mess?

I'm gonna take a guess it could be some sort of wulff or adams.

 

[rckrego]

i have to disagree with the "wulff or adams," which I assume means a species of mayfly. Mayflies do not make cocoons from which they emerge. Instead the skip the pupal stage and go from nymph to dun. Same, I believe, with stoneflies.

Your options for flying aquatic insects with a cocoon stage are caddises and those flies that devolve from hellgrammites. Caddises must be out of the equation because they cocoon underwater, usually in their cases, and then "emerge" in the pupal stage which we all fish which rises to teh surface and the adult fly stage "hatches" from.

Hellgrammites, on the other hand, pull themselves out of the water, crawl under a rock and make a cocoon on the underside of the rock where they pupate, and then hatch in the adult stage. If the boat was near water, this seems the most plausible explanation given the presence of a cocoon.

If parasitic wasps make little cocoons like that it could be one of those, but I don't think so because of the wing cases. Its gotta be something that pupates in a cocoon. Its definitely not a moth.

 

[Big_Spinner]

Hi,

Not a dobson.

I think that soldier beetle may be my first choice.

Jim

 

[rckrego]

The wing casings really make the case for some sort of beetle don't they?

 

[Big_Spinner]

Check out this site for bugs.

http://bugguide.net

Good pictures of soldier beetles with wings open.

Jim

 

[cingras53]

A dead ringer. Thanks Big Spinner

 

[cingras53]

Sorry viewers, it did not copy. It is a "soldier beetle" depicted at Big Spinner's referenced Bug ID website. Looks like a positive ID to me. Book em Dano

 

[Ant]

Big Spinner thanks.

I believe the bug was either picked up on the river, or shortly after while the boat was sitting on the grass for a few minutes.

Ant

 

[Future Fanatic]

A little late in on this one, but I've gotta disagree with Big Spinner.

Though real close, I have to go with Centrodera decolorata.
It's all in the size of the eyes that puts this one over the Soldier Beetle(based on the photo).

Here is a link to a photo on Big Spinner's suggested site(a great one):

Centrodera decolorata - BugGuide.Net

Also:
Species Centrodera decolorata - BugGuide.Net

 

[cingras53]

You were a little late because you were in Montana. Are you going to share?

 

[Future Fanatic]

You were a little late because you were in Montana. Are you going to share?

Let's not forget Idaho...

Sharing soon. Just way too much to say and show.