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

Subject: ODD ivory colored insect that bites
Location: Mississippi
November 13, 2016 4:39 pm
My son was bitten by what he called a “mean caterpillar”. However, I don’t believe it is a caterpillar. I have no idea what this insect might be. Please help.
Thank you,
The Parker’s
Signature: Alicia

Scarab Beetle Grub

Scarab Beetle Grub

Dear Alicia,
This is the grub of a Scarab Beetle, probably one of the June Beetles.  There is no concern regarding the bite.

What's That Bug? does not endorse extermination

Subject: gray and black beetle-like bug on swamp milkweed
Location: Fenton, MO
September 4, 2016 1:51 pm
Dear Bugman,
I ran into this creature while inspecting my swamp milkweed for monarch caterpillars. I found ver 10 caterpillars as well as this gray and sort of shiny creature. It has 5 black dots on each side and I think I see 6 legs but really small. its about the size of a ladybug. Found it on underside of Swamp. Milkweed leaf toward top of stem. I cannot tell where to begin to find out what this little guy or gal is and if he/she means harm to my milkweed or my monarch caterpillars.
Thanks so much!
Signature: fran

Swamp Milkweed Beetle Larva

Swamp Milkweed Leaf Beetle Larva

Dear Fran,
This is the larva of a Swamp Milkweed Leaf Beetle,
Labidomera clivicollis, and we identified it on BugGuide based on this image.  According to BugGuide:  “Larvae and adults cut several side-veins of a milkweed leaf prior to feeding, to reduce the sticky latex that would otherwise be produced at their feeding sites.”  So, the larvae and adults of the Swamp Milkweed Leaf Beetle share the same food source as the Monarch Butterfly, and unless the beetles are so populous that they defoliate the plants, they are not a threat to either the milkweed or the Monarch caterpillars.

Thanks you so much.  A few folks had thought it might be a false Potato Bug larvae??? Since I found it on a swamp milkweed leaf, a Swamp Milkweed Leaf Beetle makes sense!
Thanks do much!
fran

 

What's That Bug? does not endorse extermination

Subject: What is this bug
Location: Monkton MD
August 9, 2016 5:31 pm
Help. Our neighborhood cannot figure out what this bug is
Signature: Curious

Beetle Larva we presume

Beetle Larva we presume

Dear Curious,
Your somewhat blurry image reminds us of the classic photo of Nessie.  Our best guess on this is that it is some beetle larva, possibly a Ground Beetle larva as it looks rather similar to a Caterpillar Hunter larva.

What's That Bug? does not endorse extermination

Subject: identify bug
Location: plymouth mass
July 17, 2016 10:18 am
Just wondering what type of bug this is
Signature: lara killen

Caterpillar Hunter Carnage

Caterpillar Hunter Carnage

Dear Lara,
This is the larva of a Caterpillar Hunter, one of the Ground Beetles in the genus
Calosoma.  It looks like someone killed it, so we are tagging this posting with Unnecessary Carnage.  Many people kill insects with which they are unfamiliar out of irrational fear.  This is a beneficial species and we hope that should you encounter another in the future, you will let it survive to eat caterpillars.  Caterpillar Hunters are important natural control agents for Gypsy Moths and others.

What's That Bug? does not endorse extermination

Subject: Uknown bug pupa/nymph
Location: South-eastern europe/Serbia
July 7, 2016 6:41 am
I found this bug pupa/nymph buried under ground in a group of four. They are filled with some white, almost milk like fluid and are found few inches below ground. It looks familiar to me, but I am not sure what it actually is, so I’m want to know is this bug dangerous and can it do any damage to the crops in the garden.
Signature: MD

Scarab Beetle Pupa

Scarab Beetle Pupa

Dear MD,
We are very confident that this is the Pupa of a Scarab Beetle in the family Scarabaeidae and our first thought is that it must be the Pupa of a Cockchafer since that is the most common European Scarab Beetle submitted to our site, however, based on this image posted to the Gardening & Landscaping Stack Exchange and this image posted to the HYPP Zoology page, after clicking the link, we believe you have a different species.  According to Research Gate:  “A total of 178 species, 83 genera, 15 tribes, and 7 subfamilies of the family Scarabaeidae are recorded from Serbia.”  This image of a pupa of a female European Rhinoceros Beetle,
Oryctes nasicornis ondrejanus, from BioLib looks much closer.  

Scarab Beetle Pupa

Scarab Beetle Pupa

Scarab Beetle Pupa

Scarab Beetle Pupa

What's That Bug? does not endorse extermination

Subject: Unknown Insect Larva
Location: Denver, Colorado
May 28, 2016 5:08 pm
Dear WTB,
While on a walk through my neighborhood in Denver, I found this black insect larva crawling around the sidewalk.
It was fairly large, I’m guessing around 1-1/2″ long, and moved at several inches per second, making taking a good photo a little tricky. This happened today, May 28th. The area is a low-density urban neighborhood with lots of yards, lawns, gardens, and trees. There are water sources in the general area, but not near where the insect was found.
I’m guessing this is some type of beetle larva, but I’ve definitely never seen this species, or one that come close to this size, before.
Signature: Duncan

Caterpillar Hunter

Caterpillar Hunter

Dear Duncan,
This is the larva of a Caterpillar Hunter, a Ground Beetle in the genus
Calosoma.  Both larvae and adults from this genus consume large numbers of caterpillars.  See this BugGuide image for comparison.  We are postdating your submission to go live to our site during our absence from the office in mid-June.

What's That Bug? does not endorse extermination