Help me find out who it is

I've often found such animals before.In general, under [u]poplars, in the ground,right in the thick root, a deep hole is gnawed out,a very dense cocoon is inserted in it (3-3. 5 cm, as thick as the little finger)From the inside like leathery and from the outside is made of particles of gnawed wood (probably left from gnawing this hole)in the interior of the cocoon is a fat white worm, the number of legs is unclear, the head seems to be large(not like flies, riders, etc.)The pupa is very vaguely similar to the pupae of weevil mosquitoes.It seems that pupation occurs already in the spring.Redhead...I found them before,now there is no time to dig the ground,I failed to bring them out,but the mystery remains....maybe there are options?

most likely-a poplar glass butterfly.

Maybe.I met adults in my own area. Only the size of something confuses me,and the pupa is not very similar to a lepidopteran.And it is not clear where the larva itself comes from,there are no moves in the wood, absolutely normal poplars.Most likely from the foliage,just lost its appearance before pupation.I need to take a look at the Glass Box photo.

most likely-a poplar glass butterfly.

As far as I know, the poplar glassfly's pupal outlet is not located underground, but just above the ground, on the comet. I.e., the insect described by Raptor is most likely not a glassfly.

Can you tell me how to catch and where to look for glassworms???

I would like to add(if this is important)Before leaving, the pupa makes a hole at the top of the cocoon and climbs half out of the ground.I found skins that were empty in the spring.But an adult insect is interesting to see!

Can you tell me how to catch and where to look for glassworms???

I always came across them in the meadows (I don't know the species, it's possible that they are the same) in the late afternoon. Mostly - when mowing.

Poplar glass flies during the day in cloudy warm weather.

I would like to add(if this is important)Before leaving, the pupa makes a hole at the top of the cocoon and climbs half out of the ground.I found skins that were empty in the spring.But an adult insect is interesting to see!

Uh, I don't know butterflies at all, of course, but isn't this some kind of odorous woodpecker (Cossidae)?

He is not a white worm. Red only, dark red

Here, for those who are interested, I took a picture this year in warm cloudy weather:

Pictures:

IMG_2556.jpg — (665.67к)

Yes, there was a case of finding adult glass girls, just like in the photo.but are these her cocoons?

He is not a white worm. Only red, dark red

Yes, indeed, I forgot that "chevryak" is white. I found odorous caterpillars, once even in our accounting department (they brought a willow stump from the street under a pot with a plant, so the caterpillar did not know where to go from a powerful squeal ). But we have other woodworms, don't we? Maybe they have a white caterpillar? And at the glasshouse?

It was a pink worm,ten centimeters long,that held the scented caterpillar in its hands.And by the way, why is it smelly?Nothing seems to stink

From my observations:
In one year I found at the base of poplars (there were several poplars in a row) hatched cocoons. In appearance, they were most similar to woodworms - small spines on each ring on the abdomen, etc. (i.e., the shape was similar to a cossus, but 2-3 times smaller in size).
For myself, I decided that it should be woodworms that hatch from the ground at the base of poplars. I never met him again, although at various times I tried to appear in that place, searching the grounds and even digging a little in the hope of finding something

And by the way, why is it smelly?Nothing seems to stink

I haven't smelled adults or caterpillars, but the sap that flows out of a damaged tree (usually from some hole) smells very characteristic and unpleasant.

From my observations:
In one year I found at the base of poplars (there were several poplars in a row) hatched cocoons. In appearance, they were most similar to woodworms - small spines on each ring on the abdomen, etc. (i.e., the shape was similar to a cossus, but 2-3 times smaller in size).
For myself, I decided that it should be woodworms that hatch from the ground at the base of poplars. I never saw him again, although at various times I tried to appear in that place, searching the grounds and even digging a little in the ground in the hope of finding something

In my opinion, the big poplar glasshouse also has spikes on the rings. But in your case, it may also be another type of woodworm (Lamellocossus terebra), or some other. But I'm not even an amateur in them, can someone tell me something?

From my observations:
In one year I found at the base of poplars (there were several poplars in a row) hatched cocoons. In appearance, they were most similar to woodworms - small spines on each ring on the abdomen, etc. (i.e., the shape was similar to a cossus, but 2-3 times smaller in size).
For myself, I decided that it should be woodworms that hatch from the ground at the base of poplars. I never saw him again, although at various times I tried to appear in that place, searching the grounds and even digging a little in the ground in the hope of finding something

That's probably what we're talking about!Pupae stick out of the ground empty near the roots and cocoons in the ground, with a hole on top.

Or maybe there are some pictures with cocoons of woodworms?

That's probably what we're talking about!Pupae stick out of the ground empty near the roots and cocoons in the ground, with a hole on top.

I can't tell you what the rule is, but I once observed the whole process of hatching a Cossus cossus. So, the exit of the butterfly was no different from the exit of the May beetle, i.e. the butterfly was dug directly out of the ground. There was no sign of a cocoon or pupal shell, just a hole in the ground.

As far as I know, the poplar glassfly's pupal outlet is not located underground, but just above the ground, on the comet. I.e., the insect described by Raptor is most likely not a glassfly.

I won't argue much, it was a long time ago. But I remember well that the cocoons of glassworms sticking out deep in the tree were at different depths, including in the underground part of the trunk, and were found when we, then schoolchildren, dug out April crunchers. The "work" was carried out with a depth of about a garden shovel.

Or maybe it was scolias? There are species of scolias that lay eggs on the larvae of beetles that live in trees, but kraz is most often at the base, I myself found such larvae (cetonium auratus)- from them, instead of a beetle, after a completely unusual "cocoon-making" of a beetle, a scolium was hatched.

"It was her cocoon that I found in the vineyard. The scolium emerges from the cocoon underground , but does not leave the cocoon completely. The cocoon covers the delicate wings of the scolia, which are not yet dry, at the moment of reaching the surface of the earth. Only on the surface does the scolium part with the cocoon forever. This is the only way to explain the sudden appearance of cocoons on the ground surface."
http://photo.bov.com.ru/m_nas/j/scolia/index.php

I won't argue much, it was a long time ago. But I remember well that the cocoons of glassworms sticking out deep in the tree were at different depths, including in the underground part of the trunk, and were found when we, then schoolchildren, dug out April crunchers. The "work" was carried out with a depth of about a garden shovel.

No, that's right - I forgot that! Glassworm cocoons are found both in the clump and in the roots, at a depth of up to 20-25 cm. Almost 100% - the insect for which this branch was formed - a large poplar glass box, and not kossuses. Yes, still-where to catch-imago big poplar (females in the first place) are found right on the clumps of poplars (we have-Bolle poplars = narodn. "pyramidal", "Turkestan", white-skinned such "candles"), fly reluctantly. Late spring, early summer.

Here, I scanned a piece from a little-known book about the biology of the big poplar glasshouse, and cossid as well.

Excerpt from:

Kolomoets T. P. Pests of green spaces in industrial Donbass.
Kiev: Naukova dumka Publ., 1995, 216 p. (in Russian)

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