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

Subject:  Mystery Bug, Japan
Geographic location of the bug:  Northern Hyogo Prefecture, Japan
Date: 06/22/2019
Time: 07:13 AM EDT
Your letter to the bugman:  I found the strangest bug out on my run today. We’re in the middle of the rainy season right now (late June), and a massive downpour had just finished. I live in a pretty rural area and I found this guy on the road next to the rice paddies. At first I thought it was a caterpillar of some kind, but the way it was moving was a little off. Instead of the normal perstaltic motion it was kinda flopping around more like “the worm” dance, raising it’s head pretty significantly at the end of each movement. And when it flipped over while crawling I was surprised to see it had six legs! The skin looked pretty soft and covered in silt, and combined with the fact that it wasn’t very elegant moving around on land I guessed it was probably aquatic. When I got home I googled pictures for dragonfly larvae though, they don’t match at all! It was about 10 cms long, with a rather big and fat “tail”, six small legs, and small but noticable mandibles. What kind of bug could this be? I’ve never seen anything like this in the three years I’ve lived here. Thank you!
How you want your letter signed:  Justin

Larva Dorsal View

Dear Justin,
Had you only provided us with a dorsal view, we might have pondered this being a Soldier Fly pupa, but the legs and mandibles rule out that possibility.  We believe this is a Beetle larva.  We will continue to research this identification while having posted it as Unidentified.

Larva Ventral View

What's That Bug? does not endorse extermination

Subject:  What is it?
Geographic location of the bug:  Central Illinois
Date: 06/16/2019
Time: 04:01 AM EDT
Your letter to the bugman:  I was transplanting herbs, moving compost around.
How you want your letter signed:  LoLo

Possibly Blurry Scarab Grub Image

Dear LoLo,
Your image is too blurry to be certain, but since this was found in a compost pile, we suspect it is a Scarab Beetle grub.

What's That Bug? does not endorse extermination
Subject:  need help with ID
Geographic location of the bug: Westmoreland State Park, in Montross, VA 22520
Date: 05/13/2019
Time: 08:24 AM EDT
Dear Daniel,
I tried to upload this photo to your website, but it appears my computer is “buggy”, ha ha. I found this (I presume) larva on the path of Westmoreland State Park, in Montross, VA 22520, on April 20th. I moved it to the side where it wouldn’t get stepped on. When moving it, it kept trying to dive under the leaf I was trying to move it with, perhaps it was ready to pupate much like Manduca sexta does (I used to work with them). I managed one photo before it burrowed into the leaf litter. It was about three inches in length.
I cannot find anything in my books or on your site. I am hoping you can help me….
Thanks so much for your great website. Sometimes I just browse through to see insects that live in places I’ll never be able to visit.
Regards, Seth

Unknown Beetle Larva

Dear Seth,
Many larval forms of insects are not well documented.  This appears to us to be a Beetle larva.  Perhaps one of our readers will recognize it and write to us.

What's That Bug? does not endorse extermination

Subject:  What is this??
Geographic location of the bug:  Southern california
Date: 04/29/2019
Time: 09:01 PM EDT
Your letter to the bugman:  I keep finding these in my soil when I am planting. They are usually a couple inches under the soil. Lived here 23 yrs and never saw them. This spring I’ve already found about 40. Should I be worried??
How you want your letter signed:  Worried gardener

Scarab Beetle Grub

Dear Worried gardener,
Though we cannot provide you with a definitive species, this is definitely the grub of a Scarab Beetle.  Many species of June Beetles have grubs that feed on the roots of grasses. 

What's That Bug? does not endorse extermination

Subject:  Mystery bug
Geographic location of the bug:  Ohio
Date: 03/31/2019
Time: 12:42 PM EDT
Your letter to the bugman:  I’ve never seen anything like this. Found on the floor of my house.
How you want your letter signed:  Matt

Darkling Beetle Larva

Dear Matt,
This appears to be an immature Fly, possibly a Leatherjacket, the larva of a Crane Fly.

Ed. Note:  We received a comment that this is a Darkling Beetle larva.  Here is a somewhat similar looking image from FLickR.

What's That Bug? does not endorse extermination

Subject:  Beetle Larvae
Geographic location of the bug:  Inside A Rotten Pine Log In Northeast Ohio
Date: 01/09/2019
Time: 09:53 PM EDT
Your letter to the bugman:  This beetle larvae was found in a old rotten pine log in northeast ohio. It is almost 1 inch long. I need your help in identifying it.
How you want your letter signed:  yes

Stag Beetle Grub

Based on this BugGuide image, we are pretty confident this is a Stag Beetle larva.

What's That Bug? does not endorse extermination