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Arthropod Pathogenic Fungi

This article is an effort to bring together all of BugGuide's images of bugs that have been attacked by fungi. Clicking a thumbnail will take you to the full-sized image, which may be linked to additional images of the same individual. If you come across images that are not shown here--particularly of different fungi or different victims--please add links to them in the comments below.

Check out this video to learn a bit about Cordyceps, a mostly tropical genus of fungus that can be found in the southeastern US. (In the Amazon, there are treehoppers in the genus Bocydium that appear to mimic these fungi. Some examples are shown here.) There is more information about Cordyceps and related fungi here. There are many other types of arthropod pathogenic fungi. If you come across good information about them, please post links etc. below and I will incorporate them here.

Life cycle information, along with many references, can be found in:
Roy, H. E., D.C. Steinkraus, J. Eilenberg, A.E. Hajek, and J.K. Pell. 2006. Bizarre interactions and endgames: entomopathogenic fungi and their arthropod hosts. Annual Review of Entomology 51:331-57.

Also see Alex Wild's "Death by Fungus" gallery here.

Most, if not all, of these spiders are afflicted with species of Gibellula (a.k.a. Torrubiella). Kathie Hodge's article here shows examples of Gibellula pulchra and Nomuraea atypicola.

Cellar spiders with Torrubiella pulvinata

Pandora phalangicida is a harvestman-specific fungus. Also see Kathie Hodge's photo here.

Grasshoppers and Crickets
Some information about Entomophaga grylli here



True Bugs

Leafhoppers, Planthoppers and Cicadas





Goldenrod Soldier Beetles infected with Eryniopsis lampyridarum

Ladybugs with Laboulbeniales fungi (see more here)

Ants and Wasps

Caddisflies infected with Erynia rhizospora

This one apparently has some other kind of fungus:


Also see the bottom of this page.
Cordyceps militaris on moth pupa:

Caterpillars -- some of these may be killed by a virus or bacterium rather than a fungus:

See Tom Volk's Fungus of the Month page for Entomophthora muscae.

This still-living calliphorid appears to be in the process of succumbing to a fungus:

Snipe flies with Furia ithacensis:

Cordyceps variabilis on Xylophagidae larva:

Some infected fly larvae found in leaf litter:

These millipedes are victims of Arthrophaga myriapodina, described in this paper.

Miscellaneous Arthropods With Afflictions That May Or May Not Be Fungus-related

Images Submitted To This Page That Have Been Determined To Depict Victims Of Something Other Than A Fungus

Blowfly, Lucilia

snipe fly


Moth scales
I agree with =v='s assessment.

Thank you!


true bug with fungus

a midge and leaf-rolling cricket

ant with Cordyceps

More Cordyceps
Cordyceps militaris on lep pupa

Cordyceps variabilis on Xylophagidae larva


fungus-ridden midge



an earwig with fungus

A cockroach

Anthomyiidae with fungus

this one (See the comment on page).
I have another photo but is the same species above. Not the same individual. Most of individuals of Psinidia amplicornis, which I saw there at that time, was affected by this problem. (Easily distinguished due to the open position of the wings.)

A tree cricket with fungus

Another Fungus-ridden Fly


Some more Laboulbinales
Laboulbinales on a Bembidion transparens (more visible on the legs):

A close-up on those on the elytra:

Soldier beetle

Phidippus putnami with fungus

lady beetle, possibly with fungus
Does anyone know what the scaly white stuff on the lady beetle's right humeral angle is?

I've seen other BG coccinellid photos with scaly white/yellow stuff like this on them, if it is indeed a fungus I'll dig around for those images to add to the list.

New *very small* wasp with fungus
I just posted this one - the body length is right around 0.7 mm!

Cycloneda sanguinea Fungus
Unable to find any reference or photo on this site for fungus on Cycloneda sanguinea

Made ID request on July 8.

Fungus on Polished Lady Beetle par krancmm, on ipernity

You need to check "your images", here.

Welcome to Bugguide.


Snipe fly

I have two new ones
a leafhopper
and a periodical cicada .

Fly consumed by fungus
Taken in Centreville, VA, about 20 miles west of Washington DC.

Ichneumon Wasp

Cicada with fungus


Moth and grasshopper

These images would all make valued additions to! I hope that as many of you as possible will consider not only uploading your entomopathogenic discoveries to MO, but imparting some of your vast bug knowledge as well. There are a great many entomopathogen observations already on the site which are in need of host IDs (see this list). Since these fungi are often exclusive to a single host, identifying the bug is sometimes enough to identify the fungus.

Here's to joining cross-kingdom forces! Hope to see you soon!


PS: As of the time of writing (~1:30PM PST), the site is down for maintenance. Shouldn't be more than a few hours.

Longlegged Fly

Dance fly

parasitized or fungus-ridden crane fly

Take a look at this one:

And this may be a fungus too:

...and perhaps this one, too:

another beetle with fungi

Carabid with Laboulbeniales


I forgot about this one

Infected Bug
Possible photo to add to your site

Hello Charley
I am usually behind on such subjects, but recently ran across Tom Volk's "Fungus of the Month" page for Entomophthora muscae while looking for the fungus that killed a fly I found. If you haven't already seen it, Check it out, it has some good info.

I moved these images to Frass--but then it occurred to me that you might be interested in a Pentatomid for this article. Thought I'd give you a heads up in case you want to "rescue" one or more of the shots.

I have a few more

Another carpenter ant.

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