Currently viewing the category: "Grubs"
What's That Bug? does not endorse extermination

Subject:  What is this?
Geographic location of the bug:  San Antonio, TX
Date: 08/07/2018
Time: 11:11 AM EDT
Your letter to the bugman:  Found this dirt egg and picked it up and felt something moving inside .. What is it? It was under some Walnut slabs of wood and leaves I was cleaning up..
How you want your letter signed:  Bugman?

Ox Beetle Pupa

This is the pupa of a horned Scarab Beetle, and we believe it looks identical to this Ox Beetle pupa in the genus Strategus that is pictured on BugGuide.  The “dirt egg” is the pupal chamber.

Ox Beetle Pupa

Many thanks as I put the pics on Facebook as a challenge to identify…

Ox Beetle Pupal Chamber

 

What's That Bug? does not endorse extermination

Subject:  Strange bug
Geographic location of the bug:  Grand forks, North Dakota
Date: 07/23/2018
Time: 01:24 PM EDT
Your letter to the bugman:  Just found a bunch of these. Not sure what they are.
How you want your letter signed:  Very respectfully

Scarab Beetle Grub

This is a Scarab Beetle Grub.  They are generally found in soil rich in humus, compost piles or in rotting wood.

What's That Bug? does not endorse extermination

Subject:  Grub found in Florida
Geographic location of the bug:  Sanibel Island, Florida, USA
Date: 03/04/2018
Time: 07:00 PM EDT
Your letter to the bugman:  Hello!  Found this huge grub at the transition zone between mangrove bayou and the beach on Sanibel Island, Florida on March 1, 2018.   For reference, it’s in my hand and I’m a 5’4” adult.  Placed it back on the ground under a leaf after snapping this photo.  Thanks for your help!
How you want your letter signed:  Hannah

Eastern Hercules Beetle Grub, we believe

Dear Hannah,
This is the grub of a Scarab Beetle, and considering its size, we believe it is a grub of an Eastern Hercules Beetle.  We suspect it was found near rotting wood.

What's That Bug? does not endorse extermination

Subject:  Bug found burrowing in dirt
Geographic location of the bug:  St Croix USVI
Date: 02/27/2018
Time: 01:32 PM EDT
Your letter to the bugman:  We had a landslide into our planters after hurricane Maria. We found these bugs burrowing in the dirt. And we have no idea what they are but look like they could bite.
How you want your letter signed:  Janice DeWald

Scarab Beetle Grub

Dear Janice,
This is the grub of a Scarab Beetle and they are not aggressive.  They are often found near rotting stumps, in compost piles and many species feed on the roots of grasses, so they are also found in lawns and gardens.

What's That Bug? does not endorse extermination

Subject:  What am I and can i kill trees?
Geographic location of the bug:  Millican Tx
Date: 01/30/2018
Time: 10:01 AM EDT
Your letter to the bugman:  Hello, recently i hauled off a dead tree from my mothers house and while cutting it up for firewood, found this Larva stage looking fellow.. id like to know what kind of insect this is and is it capable of killing trees once it burrowed in or was it just looking for a spot to metamorphosis?
How you want your letter signed:  Thanks! Vivian Stanley

Beetle Grub: Cerambycidae or Buprestidae???

Dear Vivian,
This is a Beetle Grub, most likely from either the Longhorned Borer family Cerambycidae, or the Metallic Borer family Buprestidae.  A single grub will not kill a tree, but a serious infestation might compromise the health of a tree.  You did not indicate what type of tree it was since many Borer Beetles are very host specific.  Additionally, you did not indicate the size.  Immature Grubs can be difficult to identify with certainty, and we cannot see enough features, including the head, to help narrow down the possibilities.

Thanks so much for your speedy response, i truly appreciate it. The information you’ve provided will be most helpful indeed!!

What's That Bug? does not endorse extermination

Subject:  Grub
Geographic location of the bug:  San Diego coastal 15″ below ground
Date: 01/20/2018
Time: 08:00 PM EDT
Your letter to the bugman:  I’ve never encountered a grub so large before and would like to know what kind of beetle this will become.
How you want your letter signed:  Matt Lee

Prionid Larva

Dear Matt,
This appears to be one of the Root Borers in the subfamily Prioninae.  Was there a tree or shrub nearby, or perhaps the trunk of something that had died?  While we are reluctant to provide a definitive species identification, it might be the larva of a California Root Borer like this image posted to BugGuide.  According to BugGuide:  “Larvae: Up to 80mm long” and “Larva feed primarily on living deciduous trees (oaks, madrone, cottonwood) and are also recorded from roots of vines, grasses, and decomposing hardwoods and conifers. Will also attack fruit trees growing on light, well-drained soils (e.g. apple, cherry, peach).”  If that is a correct identification, here is an image of an adult male California Root Borer, though your larva might belong to a different, though similarly large Prionid with long antennae. 

Prionid Larva

What's That Bug? does not endorse extermination