Is this mycosis?

Appreciate Creation

Arachnopeon
Joined
Dec 2, 2024
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15
I just took my Hadrurus arizonensis (Arizona giant hairy) šŸ¦‚ out of the tank for the, first time in a while, and noticed this darkening where the legs connect to the cephalothorax. It's most obviouse in two front legs (on either side) and the two following legs (on either side). It may be on the third legs as well. I cannot tell if it's on the 4th legs. Please see the photos. It's darkest and most wide-spread on the 2nd leg of the scorpion's right side. That leg has fully black marks. The others are just brown.

Could someone please help me here? Is this mycosis or just age? I'm not seeing it on photos of the same species online. šŸ˜•

He spends much of the day out in the open. I have pics of his 10 gallon tank posted here too for reference. (There is normally a cork bark hide in the back left corner, but that's currently in his travel box with him). The room he's in is pretty dark most of the time, but it still seems wierd for a burrowing speices to be out that much, unless he really does just feel secure enough to be out due to the darkness. šŸ¤” However, i am now considering the possibility that he is avoiding moisture below the surface. I know some say you should never wet the tank of an arid species, but I live where these critters live (found this one in the yard) and I figure they should get a rain simulation 🌧 when it rains here to mimic the natural habitat. I've also seen him drink water when I put it in the dish so i give it to him once in a while (sometimes with a minor tank wetting, localized to one spot and not the whole tank--even if no rain that day) Maybe I accidentally did more than the tank will allow for proper drying. I haven't dug in the substrate to see.

If anyone could please confirm if this is mycosis, that would be helpful, and perhaps a lesson learned.
 

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Appreciate Creation

Arachnopeon
Joined
Dec 2, 2024
Messages
15
I added some clearer photos below (remember it's the first and 2nd legs from the front, near or on the area where the legs connect to the cephalothorax). I also discovered today that he has a growth on a hind foot that looks like it could be the "fuiting body" of a fungus. See photos below.

Is this mycosis?
 

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viper69

ArachnoGod
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Dec 8, 2006
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19,158
Hard to say for me, the images aren’t clear enough. Others may know better.
There’s no substitute for direct examination, and only images with the best resolution so when enlarged look as good as seeing live are best. But that’s me.

I saw the fruiting body pics, when enlarged the dark pixels are just a large dark ā€œdotā€ so I can’t see anything. Sorry
 

darkness975

Latrodectus
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Aug 31, 2012
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6,155
I added some clearer photos below (remember it's the first and 2nd legs from the front, near or on the area where the legs connect to the cephalothorax). I also discovered today that he has a growth on a hind foot that looks like it could be the "fuiting body" of a fungus. See photos below.

Is this mycosis?
That doesn't look great. Looks like one of my rescued neglected H. arizonensis that has mycosis. She is a nearly 20 year old female so no chance for a molt to fix it.
 
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