Where did you find them. Mine came out of acorns. Were these in some similar place?

I found them in my kids sandbox when I was moving the sand around to get the sand on the bottom to dry. I have this nut tree near the sand box but I am not able to identify the tree...the branches are about 20ft from the ground and all I can get from the tree are the nuts when they fall and so far no one has been able to tel me what kind of tree it is. I have some acorns but they aren't as close to the box as this tree is. In the front of the house I was weeding my flowers and found some under the weeds and the flowers are no where near a tree. If anyone knows where I can send a picture of the tree or the nuts to be identified please let me know.

Post pictures of the tree or branch and of the nuts here linked to this image. Dr. Pearson is a botanist and has been helping us a lot.

I posted pictures of the tree bark and tried to zoom as far in for the leaves. One picture of the whole nut and one picture of the nut without the outer shell and then what the nut looks like on the inside. I hope you can tell me what it is. If you need more info or pics let me know. Thanks.

The tree appears to be Pignut Hickory (Carya glabra). I am quite familiar with the hickories of your area. The leaves appear to have five leaflets on them - this narrows the choices immediately to two species: Shagbark Hickory ( C. ovata), or Pignut Hickory (C. glabra). Since this is a "tight bark" hickory, and not a "shaggy bark" hickory, it would indicate that this is C. glabra.

...and, as Tollie says, either Shagbark or Pignut. The "shaggy bark" character works best on older, larger specimens of Shagbark Hickory after strips have had a chance to grow and peel; both Shagbark and Pignut trees will have tight bark when young. Another character to examine is the husk surrounding the nut: it is typically thick (4-15 mm) and dehiscing ("splitting") from end-to-end in Shagbark Hickory and thin (2-5 mm) and partially dehiscing in Pignut Hickory. Yours appears to be dehiscing from end-to-end, suggesting Shagbark, but sometimes Pignuts do this, too. It "looks" thick, again suggesting Shagbark, but hard to see for sure from this angle - can you submit another photo with the husk turned over so that we can see its thickness?

Regardless of the exact species of hickory, I think your larvae may turn out to be the Pecan Weevil (Curculio caryae):

But since I have never identified this species myself, please wait for confirmation from someone who has.

I posted a picture of the outside shell turned over...these are nuts found on the ground I would guess from last year. Last year when we first saw them some of the outside shells were a green color. The tree is approx. 40ft.

I seem to also recall that the husk shape exhibited on this individual is characteristic of Pignut - correct me if I am remembering wrong here. The husk of Shagbark tends to be round, while the husk of Pignut tends to have the somewhat pear shape shown on this husk? Am I remembering correctly? It has been a few (20) years since dendrology ... by the way, I have an oak ID for you - driving me nuts (pardon the pun) - do you mind if I e-mail you some photos?

Shagbark tends to be spherical while Pignut tends to be obovoid, but both vary. I checked the FNA (Flora of North America) descriptions, which say:

Shagbark: "spheric to depressed-spheric"
Pignut: "obovoid, spheric, or ellipsoid"

It is easy to be driven "nuts" (don't apologize for great puns!), especially with photos! I'd be happy to check your oak photos!

Skiskids just added a photo (thanks!) of the interior of single husk valve with an unmistakably elliptical shape and thin walls, so this is Pignut Hickory. Good call, Tollie!

Thank you for your help with the tree. Are the weevils from the nut of this tree or do you think the weevils came from another tree? I think the bark is what confused us. I couldn't find any pictures of other trees with the same bark. Never seen anything like that before. Where I come from I don't think they live...lol.

Assuming my ID of the larvae as Pecan Weevils is correct, they did come from the nuts of this tree, see the BG Info Tab here. In fact, you will notice that the specific epithet (second word of the two-word species scientific name) of the weevil is caryae, a reference to the genus (first word of the species scientific name) for hickories, Carya.

The bark of hickories has a criss-crossing pattern of long, narrow strips forming tall, slender X's, as in this photo (and yours) of Pignut Hickory (Carya glabra); this linked PLANTS webpage shows other photos, a range map, and other photo sources.

Oh, I just noticed that this is your first BG posting - welcome to BugGuide!