Currently viewing the category: "Fungus Beetles and Pleasing Fungus Beetles"
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Subject: Bugs
Location: Indiana
April 11, 2015 3:54 pm
These bugs are on a hackberry tree.
Signature: Mag

Pleasing Fungus Beetles

Pleasing Fungus Beetles

Dear Mag,
These are Pleasing Fungus Beetles in the genus
Megalodacne and they will not harm your tree.  According to Featured Creatures:  “In the United States, the pleasing fungus beetles are not economically important, but in the Orient where many people regularly collect and eat wild mushrooms, pleasing fungus beetles may be considered pests (Boyle 1956). Many of the fungi upon which these beetles feed are edible by humans. Currently none of these fungi is easily cultivated and they are not sought after by most people. With the increasing popularity of mushrooms and cultural technological advances, it is possible that pleasing fungus beetles may become economically important in the United States. If these beetles become pests, chemical control is not recommended because mushrooms are very absorbent. Biological or cultural controls should be considered.  These beetles may also be beneficial. Fungi like Inonotus spp. and Armillariella spp. are known to be pathogenic to hardwood trees. These fungi also serve as hosts for several species of pleasing fungus beetles.”

Amy Gosch, Jason A. Burton, Andrea Leonard Drummond, Margie Hudson, Leslie Ticer Lusch liked this post
What's That Bug? does not endorse extermination
Pleasing Fungus Beetle

Pleasing Fungus Beetle

Subject: Gibbifer gibbosus?
Location: La Estrella, Antioquia, Colombia
December 17, 2014 9:39 am
I found this beautiful beetle walking over a fungus, near Medellin, Colombia, at about 1700 m over the sea level. So I think it could be a “pleasing fungus beetle”, but I only find references of this species in Central American countries.
During my search in internet, I also found the latin word “gibbosus” that means “humpback”. It seems to be clearly the case of this beetle.
Signature: luchogu

Pleasing Fungus Beetle

Pleasing Fungus Beetle

Dear luchogu,
Your images of a Pleasing Fungus Beetle on its namesake food are spectacular, but they took us so long to format for the web that we don’t have the after final energy to research their identity, but we believe the genus
Gibbifer is correct.
It’s a new day and we are linking to a Costa Rican Pleasing Fungus Beetle submission from earlier in the year that might be
Gibbifer gibbosus, but we were never able to substantiate that identification.  Insetologia from Brazil has an image of a Pleasing Fungus Beetle that look identical to your individual that is identified as being in the genus Cypherotylus, a name we cited as obsolete in a posting from our archivesFlickR includes an image of a Pleasing Fungus Beetle in the genus Gibbifer, but it looks nothing like your individual.  A search for Gibbifer led us to another FlickR image from Peru that looks similar to your individual, but it is only identified to the genus level.

Pleasing Fungus Beetle

Pleasing Fungus Beetle

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What's That Bug? does not endorse extermination

Subject: Penthe obliquata–fungus beetle
Location: Mancelona, MI
June 30, 2014 4:26 pm
I found this distinctive black beetle while I was out last night moth hunting, and since he seems to be missing from your archives I’m passing him along! This particular species of polypore fungus beetle is about 1-1.4 cm long (according to Bugguide; consistent with my specimen). That little orange scutellum (right between the thorax and the abdomen) is the key to identifying it, along with the overall rounded shape. Evidently they like living in dry fungus and decomposing trees, both of which we have in abundance around here, though this one was drawn to a lamppost.
Signature: Helen

Fungus Beetle

Fungus Beetle

Dear Helen,
Thank you for your continued efforts to supplement our archives with your excellent images.  BugGuide does have some additional information on this Fungus Beetle that does not have a common name.

What's That Bug? does not endorse extermination

Subject: Pleasing Fungus Beetle (Gibbifer sp.)
Location: Rincon de la Vieja NP, Costa Rica
May 10, 2014 5:48 pm
I found this beetle while hiking in the Rincon de la Vieja National Park in Costa Rica. I’m guessing that it belongs to the genus Gibbifer based on the ID that I found here on your pages. But I couldn’t find any matches for a species ID. Maybe you or some of your readers can help.
Signature: Siggy

Pleasing Fungus Beetle

Pleasing Fungus Beetle

Hi Siggy,
You are correct that we have several examples from Costa Rica of Pleasing Fungus Beetles in the genus
Gibbifer, but we cannot substantiate their species identity.  There is a posting on Project Noah that is identified as Gibbifer costaricensis.  That same species is represented on Biologia Centrali Americana, however, the obsolete genus name Cypherotylus is used.  It is also important to understand that insects do not respect international boundaries drawn up by humans.

Pleasing Fungus Beetle

Pleasing Fungus Beetle

Daniel,
Thanks for replying so quickly. I seen that plate from Biologia Centrali Americana as well and thought insect #3 matched mine pretty closely. But when I did a search on Gibbifer gibbosus, what I assume would be the current name, I found pictures of beetles without the black band across the middle. I don’t know how much variability can be expected in a species, but maybe it’s just a variant.
I have a few more pictures of some insects that I want to ID from that hike. If I can’t come up with anything myself I may resort to enlisting your help again. Even if I can ID them, I’ll submit the images for use on your site.
Siggy

Hi again Siggy,
We would love to see any identified images from your hike.  It is much easier for us to post interesting images of interesting creatures without having to do any additional research.  Please include the species name and location in the subject line to catch our attention as traffic is once again increasing due to warming weather in much of the northern hemisphere.

What's That Bug? does not endorse extermination

Subject: Id help
Location: Maryland
August 22, 2013 11:39 am
Hi,
Was out walking and thought these bugs were beautiful and have no idea what they are or what they are doing. Are they attacking a tree or feasting on a fungus? Would love help getting them identified. I’ve only seen them once in the forest.
Thanks you!
Signature: Nature lover

Pleasing Fungus Beetles

Pleasing Fungus Beetles

Dear Nature Lover,
These are Pleasing Fungus Beetles in the genus
Megalodacne.  They are feeding on fungus as their name implies.

Pleasing Fungus Beetles

Pleasing Fungus Beetles

What's That Bug? does not endorse extermination

Subject: What is this bug?
Location: Southbury ct
June 11, 2013 12:07 pm
Dear bugman, I found these cool black & orange bugs this week out back on a fungus. They were 1/2 – 3/4 inches long. The color caught our eye immediately. what is this bug? Also, if you look closely at the picture you can also see small larva / baby bugs in the background. Are the big bugs feasting on the small ones? Could this fungus be their nest? Thanks!!!!!
Signature: Liz

Pleasing Fungus Beetle

Pleasing Fungus Beetle

Dear Liz,
This beauty is a Pleasing Fungus Beetle in the family Erotylidae and the genus
Megalodacne.  We cannot ascertain if it is Megalodacne heros, which is larger, or Megalodacne fasciata.  According to BugGuide:  “Larvae feed on bracket fungi. Adults overwinter under bark, often in groups.”  The larvae are grubs, and we believe that may be a larva visible in the photo you supplied.

Pleasing Fungus Beetle

Pleasing Fungus Beetle

  

What's That Bug? does not endorse extermination