Coleoptera, boring larva

Moved

… v belov, 13 March, 2017 - 3:34pm

hmmm... could this be, say, a Languriine?

… v belov, 13 March, 2017 - 3:33pm

I like V. Belov’s suggestio

I like V. Belov’s suggestion of Languriini best for this larva. There is another Languria larva in the guide, and from what I can see in the very fuzzy image that shows the caudal end looks similar to the larva in question.

… James C. Trager, 16 March, 2017 - 4:01pm

Coleoptera, boring larva (well, it's not at all boring - really!

I can't be sure from the image & view, but it looks like a tenebrionid – perhaps in the tribe Helopini or near(?)

… Dr. Daniel K. Young, 6 March, 2017 - 8:52am

Oh, I know Boring Beetle.

He was a great help in Double Trouble in Bugland by William Kotzwinkle. Fun book and the illustrations are delightful.

… MJ Hatfield, 13 March, 2017 - 5:05pm

Symphyta?

The front end looks very sawfly-like to me, though the terminal segment is odd. No side view of this larva?

… Charley Eiseman, 16 February, 2017 - 8:28am

stem-boring sawflies?

Cephidae would be the likely sawfly group, but the descriptions I've found (white, with the abdomen terminating with a "tubular prong or horn") not a very good match.

… Matthew Kenne, 18 February, 2017 - 11:36pm

Are you going to put these

on your to-do list, to find and try to rear?
And if he's interested, maybe send some to Charley to try and rear?

… MJ Hatfield, 19 February, 2017 - 5:19am

boring larva

I thought they were micro Leps when I removed a couple, although I didn't get any side shots to confirm structure. About 1/4 inch long or so. Thrown a bit by the horns on anal segment- I'd not seen that before.

… Matthew Kenne, 11 February, 2017 - 11:43am

not a Lep

Terry Harrison says definitely not Lep and most likely beetle- microleps don't have "anal horns" or secondary setae on only one body segment.

… Matthew Kenne, 14 February, 2017 - 3:37pm

those long hairs at the anal end are odd though...

… Blaine Mathison, 18 February, 2017 - 7:53am

Not quite the same but

here are long hairs on the anal end of a lep:

which also happens to bore stems of Goldenrod.

… MJ Hatfield, 8 November, 2017 - 1:57pm

Not a sawfly

I ran this by sawfly taxonomist Dr. David Smith, who replied:

"This goldenrod larva is not a sawfly. I’ve never seen a sawfly like this, and none have been recorded from goldenrod. Sometimes it is difficult from pictures and one has to rely on experience, but sawflies would have more distinct annulation on the abdominal segments (3 – 6 distinct annulets per segment), and I have never seen a sawfly larva with the long setae and prongs on the apical segment."

… Terry Harrison, 22 February, 2017 - 7:10am

Moved

Moved from Beetles.

… MJ Hatfield, 11 February, 2017 - 7:49am

are you sure this isn't Lepidoptera?

… Blaine Mathison, 11 February, 2017 - 7:38am

Oh gee

that's my fault. Matt didn't say what he thought it was. I'll move it.

I just automatically think beetle with stem borers although I've found lots more moth larvae in stems than beetles.

… MJ Hatfield, 11 February, 2017 - 7:49am

Beats me ...

MJ, I've been through insects known to feed on goldenrod foliage, and haven't found anything that really looks right to me. There were some beetle, and some moth larvae that looked similar, but not with cerci.
Bob Z

… Robert Lord Zimlich, 5 March, 2017 - 10:58am

not foliage feeders-

They were internal stem borers.

… Matthew Kenne, 6 March, 2017 - 5:48pm

Might it be

a plume moth?

… MJ Hatfield, 5 March, 2017 - 11:17am