Blister Beetles!

DSC_0094.JPG

Guess what I came across the other day while at work…a blister beetle (Meloe sp.). Blister beetles get their name from a chemical they produce called Cantharidin which is a highly toxic irritant that causes blistering (want to see a pic?). The compound, which is also found in a few other insects, has been used as an aphrodisiac in the past. Interestingly enough, the compound is also used in wart removal ointments. The beetles produce the compound as a defense mechanism. When disturbed they curl up and play dead and exude the chemical from their joints, this behavior is referred to as reflex bleeding.

DSC_0152.JPG

Another cool fact about blister beetles is that the larvae crawl up on flowers and wait for solitary bees to come by so they can grab a hold of them and be transported by the bee back to the nest. Once back in the nest, the larvae feed on the eggs and larvae of the bees, as well as the pollen that is brought back. Once the beetle pupates, it crawls out of the nest and back into the soil to complete its life cycle and become an adult.

What’s not to like about this insect?

15 Responses to “Blister Beetles!”

  1. on 22 Oct 2007 at 12:05 pm Kylee

    Okay, so send me some of that so I can get rid of the plantar’s wart I’ve had on the bottom of my foot for four years. That’s right. FOUR YEARS. Grrrrrr… And yes, I’ve seen three doctors about it and no one wants to surgically remove it, yet nothing they try has worked. :-(

  2. on 07 Jan 2008 at 4:02 pm jojo

    gross

  3. on 22 Mar 2008 at 2:49 pm kamya

    how CAN somebody like that beetle? its the worst thing on earth! of course, it may be cool, but completley DISGUSTING!!!!!!

  4. on 28 Mar 2008 at 3:26 pm Diane Pritchard

    The dematologist I see used some of the ointment to get rid of pre-cancerous skin cells on my nose! yes, my nose did blister and swell but the effects are temporary, will heal and I’m now cancer free.

  5. on 30 Mar 2008 at 10:27 am Beatriz Moreno

    I think it’s pretty cool, but i still wouldn’t want to get blisters from it.

  6. on 06 Apr 2008 at 8:13 pm sergio

    man i already hate bugs in general

  7. on 09 Apr 2008 at 9:45 pm Dr. Jeff Johnson

    I’ve used the canthardin from these beetles for over 20 years to help rid people of plantar’s warts.
    The chemical is super potent and super effective.
    The negative thing about it is that most folks say their foot is pretty tender for a few days.

  8. on 18 Apr 2008 at 6:07 pm Lindsay

    I have had a rather large wart on my hand for a long time and each time I would go to my dermatologist he would freeze it and it took like 7 times before I said enough already, and besides it didn’t look like it was doing much good. So today I had another appointment and he was ready to freeze it again for the 8th time and I told him I didn’t wanna freeze it again so he put Canthardin on it and it did blister, but he didn’t tell me any instructions like if I pop the blister or it’ll pop on it’s own…nothing. So I’m kinda on my own as far as that goes. Hope all goes well.

  9. on 14 Nov 2008 at 2:19 pm tania stan

    That’s a cool and helpful bug I say. We use cantharone in our clinic to treat wart. It will cause blister or discomfort but yeah…it will work in the long run. However, people with blister should pop their blister with sterile needle or sharp instrument…why, to avoid infection. Don’t peel the skin…let the liquid drain. Put polysporin and cover with band aid to avoid infection and change band aid everyday.

  10. on 29 Dec 2008 at 8:37 pm Denise

    I would like to know where you can get “blister beetle” or rather
    Canthaaridin to treat warts. My son need to get rid of some plantar
    warts on the bottom of his foot. I would like to get his doctor in touch
    with this information. The local dermatologists here do not have access
    to this. Is it considered to be a homeopathic treatment?

  11. on 15 Mar 2009 at 11:14 am Michael

    I didn’t find it too interesting when i saw one crawling across my kitchen floor.. was the ugliest bug i have ever seen. I had never heard of a blister beetle until i looked it up online a couple of days after. All I can say is I’m glad that i didn’t pick it up with my bare hands to throw it out…

  12. on 30 Apr 2009 at 8:24 pm Amanda

    I went to see a podiatrist and they applied the “beetle juice” to my plantars warts (approx 30 on one foot!) and I hope this gets rid of them. I have had the warts for a few years now and have been resistant to freezing and salylic acid patches. Just a warning…if you have as many as I do it is NOT FUN!! I am unable to walk on my foot. Hopefully it takes care of the warts though! keeping my fingers crossed!

  13. on 13 May 2009 at 3:03 pm 10 Most Diabolical Insects On Earth

    [...] Beetle juice, anyone? Close-up of a blister beetle playing dead: Image via Bugs for Thugs [...]

  14. on 17 Jun 2009 at 2:09 pm Jana

    There is research that proves the use of duct tape is more successful at removing plantars warts than either salycilic acid or burning/crio freezing. (I know I’m not spelling these right!) It is currently pulling out my daughter’s on her foot.

  15. on 19 Feb 2010 at 7:08 pm Micha(ela)

    it´s so beautiful. i´m fascinated by it´s power – what a mighty beetle!!
    even if it´s as scary as it gets. just even more amazing.

Trackback URI | Comments RSS

Leave a Reply