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Photo#279142
Hadrurus sp. - Hadrurus obscurus

Hadrurus sp. - Hadrurus obscurus
Griswold Hills, San Benito County, California, USA
May 23, 2009
Size: 87 mm
I was surprised to find this very large Hairy Scorpion in one of my pitfall traps. I didn't know that we had such large scorpions in Central California.

Images of this individual: tag all
Hadrurus sp. - Hadrurus obscurus Hadrurus sp. - Hadrurus obscurus Hadrurus sp. - Hadrurus obscurus

Moved

Moved
Moved from Scorpions.

Hmmm...
This one is intriguing because the border of the dark pigment on the face is more than usual for Hadrurus obscurus and a little too much for H. spadix. I would gather a guess of H. obscurus due to the pale border on the front of the carapace.

One would have to look at the trichobothira on the hands to really get a good ID on it. On the inferior surface of the fixed fingers of the hand, Hadrurus obscurus has 5 trichobothria; Hadrurus spadix has 4. These long hairs can be found starting at the joint of the movable finger and extend out a bit onto the fixed finger. The one "missing" on H. spadix is the second trichobothrium from the joint. Look at page 567 of Gertsch & Soleglad, 1972, "Studies of North American Scorpions of the genera Uroctonus and Vejovis (Scorpionida, Vejovidae)".

If you can, take a look and see, you shouldn't need a microscope. After that, I or someone else can move these to the right place.

Cool find!

 
Okay I finally remember to ge
Okay I finally remember to get the specimen out and count the trichobothria. It has five, and that makes it obscurus. Thanks for the literature reference, I compared it to the picture and it was a perfect match.

I actually think this is Hadr
I actually think this is Hadrurus arizonensis obscurus which is known from the exact road we found it on. :)

Wow.
I would suspect Hadrurus spadix. I was surprised (growing up in the Pacific Northwest) to learn that species occurs in eastern Oregon....

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