Cellar spider fungus--mold or pathogen?

schmiggle

Arachnoking
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Nov 3, 2013
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Found a bunch of cellar spiders with fungus growing out of them in a couple drainage tunnels I was exploring near my house. Looks like anamorphic Cordyceps or similar to me, but I would like a second opinion before I start getting excited.
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IMG_20210326_134307159.jpg
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Here are three relatively good photos, but there were tons of these. Figure it's a good environment for fungus--cool, damp, limited airflow and temperature variation--but I also saw balls of mold the size of softballs, so figured these might just be mold. The main reason I don't think so is that the fungus clearly emerges from joints in the legs, whereas I would expect mold to be able to degrade chitin and thus grow sort of equally opportunistically on the whole animal.

I didn't take samples and I don't have a microscope, unfortunately, so what you see is what you get.
 

8 legged

Arachnoprince
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Nov 25, 2020
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This is a fungus - the spider will rot to death. I would just kill it...
 

schmiggle

Arachnoking
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This is a fungus - the spider will rot to death. I would just kill it...
Lol I'm a lot more excited about the fungus than the spider. Anyway, the spiders I found were all dead.
maybe this?



seems to be a fairly well recorded phenomenon
Thanks, this is definitely it and is exactly what I was looking for but couldn't find. Presumably the teleomorph is a Cordyceps sp. I think I found the same fungus on another species of spider in the same area that I haven't yet identified.

That's gotta be one happy entomopathogen--I've never seen so many cellar spiders in one place.
 

kingshockey

Arachnoangel
Active Member
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Sep 4, 2017
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they do look kinda cool that way all fuzzy just becareful in case you picked up a hitchhiker :rofl:wouldnt be fun to end up with fuzz like that between your toes or fingers
 

Conor10

Arachnoknight
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Dec 2, 2020
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they do look kinda cool that way all fuzzy just becareful in case you picked up a hitchhiker :rofl:wouldnt be fun to end up with fuzz like that between your toes or fingers
Imagine if you brought that home to your t’s.
 
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