Currently viewing the category: "Darkling and Ironclad Beetles"
What's That Bug? does not endorse extermination

Subject: Black And White Beetle?
Location: Bulverde, Texas
October 6, 2014 5:19 pm
What’s that bug,
I found this little guy crawling up the outside wall of my house in Bulverde, Texas in early October. He was about 1-2 inches long, six legs, black and white pattern on his body. I was just wondering what he might be and thought these photos might be helpful to you.
Thanks!
Signature: Kelsey

Ironclad Beetle

Ironclad Beetle

Dear Kelsey,
This Ironclad Beetle,
 Zopherus nodulosus, gets its common name because of its extremely hard, nearly impenetrable exoskeleton.

MaryBeth Kelly, Amelia Gajary, Amy Gosch, Christy Harris, 佐藤洋介, Jackie Sherrill, Jennifer Smith, Lesa Joel DeCuir, Megan Coushew, Ana Šorc, Tracy Photogirl Shaw, Dicoyta Di liked this post
What's That Bug? does not endorse extermination

Subject: black beetle
Location: stanford university hills, northern california
March 24, 2014 4:53 pm
it bugs me that i do not know the identity of this common bug
BTW – it likes mushrooms
Thanks
Signature: virusmanbob

Desert Stink Beetle

Desert Stink Beetle

Dear virusmanbob,
This is a Desert Stink Beetle in the genus
Eleodes.  They are sometimes called Acrobat Beetles because of the way they position themselves when threatened, with head lowered and rear end up in the air.  You can view additional images on BugGuide.

Dear Daniel –
This is awesome!  Thank you so much!
This is my first query to whatsthatbug and it works!
On my website, I posted your reply with attribution and a link to whatsthatbug:
http://www.stanford.edu/~siegelr/insects/eleodes.html
I am a frequent mushroom observer user and I am hooked on that as well.
Best, Bob

Why is that Desert Stink Beetle clinging to a twig?

Why is that Desert Stink Beetle clinging to a twig?

What's That Bug? does not endorse extermination

Subject: unkown bug
Location: Brigadoon Western Australia Perth
December 10, 2013 7:02 am
Hi,
I don’t know much about entoemology and generally find the answers to my questions of what’s that bug from my family and friends. This time however I’ve not managed to find an answer and google hasn’t yielded any results. I would very much like to know what this is so I can stop traipsing the internet for an answer.
Signature: thankyo uvery much Chez

Hairy Backed Pie Dish Beetle

Hairy Backed Pie Dish Beetle

Hi Chez,
Many years ago, we received a similar image that we identified as a Pie Dish Beetle, but it took us five more years to identify it to the species level.  We believe you have submitted an image of a Hairy Backed Pie Dish Beetle,
Helea perforata.

Hairy Backed Pie Dish Beetle

Hairy Backed Pie Dish Beetle

There are many more images online now than there were when we first were asked to identify this unusual Darkling Beetle, and now you can find great images on Friends of Queens Park Bushland where it states:  “Pie-dish beetles feed on dead and decaying plant material.  Pie-dish beetles lay their eggs in moist soil during summer and autumn, usually under clumps of rotting plant material, under which adults often shelter. Females of some species can lay up to 1,000 eggs during their life spans. The rate of egg production appears to be related to temperature. So is the time of hatching, which ranges from seven to fourteen days after the eggs were laid.
After hatching, the larvae can be found in loose clusters on the top of moist soil, dispersing as they develop. When fully grown, they burrow deeper into wetter soil where they build a circular pupal chamber and change into pupae. One to three weeks later, the adults emerge. At first they are soft and light brown, but they harden after about a week and the body becomes dark brown or black, the colour depending on the species. Soon after emergence, mating occurs and eggs develop three or four weeks later. Adult pie-dish beetles can be relatively long-lived (up to a year).”  Esperance Blog has an image of a mating pair of Hairy Backed Pie Dish Beetles.  Your comprehensive views of the individual you encountered are an excellent addition to our photo archive.

Hairy Backed Pie Dish Beetle

Hairy Backed Pie Dish Beetle

Yay!,
Thats an awesome name for a beetle and makes sense, we’ve recently built a compost bin by the house for our food scraps so I look forward to seeing more of these curious creatures wandering around the general area.
Thankyou very much
Chez

What's That Bug? does not endorse extermination

Subject: What kind of beetle is this?
Location: Second growth hardwood forest, Cortland, N.Y.
December 2, 2013 10:31 am
Durning a wind storm the top of a big black cherry tree splintered and fell down. The center of the tree was mostly hollow. When cutting up the tree for fire wood this beetle was found. There were more beetles and tunnels through the rotten wood. Are they opportunistic or did they cause the death of the tree? Do I have to worry about them attacking my house?
Thanks!
Signature: M. Fortin

we cannot view your attachment.  Please resend and attach a photo or jpg.

Sorry-I don’t know how to attach a photo from iPhoto so I just copied it to this e-mail.
I live in the Finger Lakes area of New York state.  A black cherry tree on my property splintered about 20 feet up the trunk and fell over in a high wind.  The inside of the trunk was totally rotten with tunnels through the soft bits.
There were beetles in the tunnels.  They were approx. 1/4 inch long.  Did they cause the death of the tree or were they just opportunistically feeding on the dead wood?  Should I be concerned about them destroying my house?
Thanks for your time.
M. Fortin

Beetle

Darkling Beetle

Dear M. Fortin,
We managed to view and convert your attachment into a jpg.  This appears to be a type of Darkling Beetle.  We do not believe you need to worry about them infesting your home.  We are going to request a more knowledgeable opinion on this matter.

Eric Eaton  confirms.
You are absolutely right, it is some kind of darkling beetle, on the order of a mealworm.  No threat to structures at all.  It is likely scavenging the dead wood, eating fungus, or something else related to the rotting wood.
Eric

You are so kind!
Thank you for taking the time!
Were you able to see the picture I sent on your last e-mail?

What's That Bug? does not endorse extermination

Subject: Black Larvae?
Location: Logan Village, Queensland, Australia
December 7, 2013 6:11 pm
Hi, I found these coming and going from a large crack in a concrete slab. They’re about 1.5 cm long and have a light green belly. Hoping you can identify them.
Signature: Snap

Unidentified Creature

Unidentified Creature

Dear Snap,
We have no idea what these creatures are.  They might be beetle larvae, and then again, they may be more primitive insects or arthropods.  We will continue to research this matter and perhaps one of our readers (AussiTrev are you out there???) might be able to assist in this identification.
P.S.  When you stated “these coming and going” did you find more?  How many?  A colony?

Unknown Creature

Unknown Creature

Eric Eaton provides his opinion
Hi:
I’d say it is probably a chrysomelid leaf beetle larva, but I’m not that great with Australian insects.
Eric

Hi Daniel, thanks for you quick reply.
The first time I saw them, earlier this year I think, there were probably a total of 100 or more. Sighted over a few days, coming out of the same crack in the concert slab. I was ‘removing’ them once or twice a day.
This time there was only about 30 and they seemed to be heading to the crack…from where, I could not determine. Perhaps they’d been out for the day and were returning home ;) They definitely seem to be a colony, but where they’re based, I presume under the slab?, I can’t see.
Thanks so much for your help and hope to hear from you very soon.
Regards
Nina

Thanks Nina,
We are still working on this.  Here is what Eric Eaton has to say, but the fact that they appear to be a colony associated with a slab of concrete is not consistent with what we would expect from Leaf Beetle Larvae.

Update
Thanks Daniel
I may have been mistaken about the crack in the concrete. I’ve just taken another look and there are some loose bricks right next to the crack, and it appears they are coming/going from under or behind them. Please see attached. One photo is of the debris under the brick. I’m sure it’s not all a result of these larvae, but there does appear to be dead ones in amongst it, along with other insect bits and pieces. The second photo is of 2 approaching the crack and loose bricks.
Would it make sense that Leaf Beetle larvae would opt to make use of such an area?
Cheers
Nina

Beetle Larvae, we believe

Beetle Larvae, we believe

Thanks for the update Nina.  Though we still don’t have an answer for you, we are happy about some new clues.  We do not believe these are Leaf Beetle Larvae and we believe Eric Eaton might agree with the new photos.  The debris under the brick might hold clues regarding the anatomy of the adult beetles.  Those appear to be brown beetle elytra or wing covers in the dirt.

Debris under Brick

Debris under Brick

We have made several other requests from knowledgeable folks who contribute to our site and we hope to eventually have an answer for you.

Beetle Elytra under Brick

Beetle Elytra under Brick

Update:  Possibly Carrion Beetle Larva
Hi again Nina,
We are obsessed with this identification.  The closest visual match that makes sense is a Carrion Beetle Larva.  Carrion Beetles lay eggs on dead animals and the larvae feed on the putrefying flesh and the maggots that are attracted to the decomposition.  Your beetles resemble this image of Carrion Beetle Larvae from our archives.  We continued to dig and found this image of a Carrion Beetle Larva,
Eusipha japonica, which is probably a Japanese species, on FlickR.  The Calodema Supplementary Paper No. 79 (2008) mentions a species Ptomaphila perlata.  We tried to find a photo of that larva and we found a drawing that looks very similar on Beetle Larvae of the World.  We then found a photo on Alum Cliffs, Dec 2009 that looks very close to your larva, but you must scroll down the page to view it.

A Different Opinion
December 9, 2013 4:16 am
Hi,
here another opinion. In my eyes this maybe the larva of a tenebrionid beetle, subfamily Lagriinae.
I found several pictures in the internet which are rather close. For instance here:
http://www.rbgsyd.nsw.gov.au/science/Evolutionary_Ecology_Research/Ecology_of_Cumberland_Plain_Woodland/woodland_wildlife/invertebrate_animals/ecnolagria_grandis
I could, owever, not find a picture that matches 100%.
larva of Lagriinae is, however, only a possibility, I am not sure…
Erwin
Signature: Erwin Beyer

Thanks Erwin,
We also thought Darkling Beetles might be a possibility, but we couldn’t locate any matching larval images.  Thanks for supplying a link.

Hi Daniel
It does look very similar to Carrion beetle larva Ptomaphila lacrymosa (Silphidae), except for the side pieces? where the legs are attached, which are more pronounced (larger and flatter) in your example.
The brick: Please note, that this brick has holes in it, which allows many insects to climb in/out and die in and under it. It hasn’t been moved in about 15 years or so. Therefore, it is probably a bit of a bug cemetery. I just turned over another larva and it wasn’t as lime green on the belly, as the one in my photo, more cream in colour.
There only appears to be a few crawling around now, so their obvious activity appears to only last a few days. I wish I could provide more information. Perhaps I should preserve one or two somehow?

More questions from Nina
Hi Daniel
Yes, the tenebrionid beetle larvae is VERY close! This is image is the closest I have found http://beetlesinthebush.wordpress.com/2011/02/14/answers-to-id-challenge-5-artropodes-em-casca-de-arvore-morta/
The fact that they live off and on dead trees? is a bit disconcerting, if they’re heading for my house. Although, I’m a tad paranoid after having battled termites for nearly 2 years.
If they’re in the larvae stage, I may seem an influx of a particular beetle soon? Being ignorant to the cycles of insects, how long would the larvae stage last?
thanks
Nina

Hi again Nina,
The link you provided does look very close.  We don’t believe you need to worry about these larvae infesting your home.  Most larvae live less than a year before metamorphosing into adults, but some may live several years in the immature stages.  We are uncertain how long the larval stage of this creature will last.

Thanks for your efforts Daniel. I’m happy with the conclusion that it’s some type of beetle larvae. No doubt this will not be the last time I submit a bug for identification. We live on 5 acres of bushland, so there’s an abundant supply!
Enjoy your festive season and have a merry Christmas!
Cheers
Nina

 

 

 

What's That Bug? does not endorse extermination

Subject: SW Utah Bug
Location: Southwestern Utah
September 29, 2013 8:10 pm
I ran across two bugs today while hiking in Southwestern Utah. One light blue one and one green one. I have never seen these before and would like to know what they are.
Signature: Linda H.

Desert Ironclad Beetle

Desert Ironclad Beetle

Hi Linda,
Your blue beetle is a Desert Ironclad Beetle,
Asbolus verrucosusand since it is the end of the month and time for us to feature a new Bug of the Month for October, we have selected your submission.  The color of the beetle is nicely contrasted by the red color of the rocks and substrate depicted in your photograph.  There is a comment posted to BugGuide from a person who has raised Desert Ironclad Beetles in captivity and claims to have several individuals that lived more than ten years.  The BirdAndHike Wildlife Around Las Vegas website states:  “Desert Ironclad Beetles (Asbolus verrucosus) are medium-sized, fast moving beetles of the desert. These beetles eat plant debris on the desert floor, and apparently make good pets that live more than 10 years.”  Another common name is Blue Death Feigning Beetle, and  according to Bugs in Cyberspace, that name refers to:  “their tendency to play dead when bothered, combined with a powder blue colored coating they excrete on themselves to protect them from the sun.”  Your green insect is a Stink Bug in the family Pentatomidae.  

What's That Bug? does not endorse extermination