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Photo#23796
Scorpion under UV light at night - Hadrurus arizonensis - female

Scorpion under UV light at night - Hadrurus arizonensis - Female
Anza-Borrego Desert State Park, Palm Canyon Campground, San Diego County, California, USA
June 30, 2005
Size: Approx 3"
This is scorpion hunting at its best! My wife found this huge guy in the Palm Canyon campground. A great place to scorpion hunt. I had time enough to go back and get my camera while the scorpion tried to sting the beetle.

Hadrurus arizonensis "pallidus"
Family Iuridae, Hadrurus arizonensis "pallidus".

Yes, all but three or four species in the eastern Mexican forests of the genus Megacormus are fully fluorescent. Megacormus species are faint and "blotchy", hard to find with blacklights.

Nice photos, by the way!

Kari J McWest, Canyon, Texas

 
Caraboctonidae
is the family Hadrurus arizonensis is under in the guide. Has there been a retaxonification?

 
The debate on scorpion families
Thanks, Jim, for asking. This is becoming a rather delicate subject. As far as I am concerned (and a mess of other scorpion systematists as well), Hadrurus belongs to the family Iuridae. The very recent move to the Caraboctonidae (and the creation of that family by raising the subfamily Caraboctoninae) was done as the result of a cladistic study, the methods of which I disagree. I can't comment further because a formal paper is being finalized of the problems regarding that particular study. One particular problem that I can mention is that it was not peer reviewed, a necessity in journals in what is called "peer-reviewed science".

Kari J McWest, Canyon, Texas

 
Choosing sides
is something I'm unqualified to do -- less qualified certainly than several dozen other bugguide editors. It seems likely, however, that peer review would have obviated the forthcoming published challenge to this reclassification.

I have pasted most of your above comment in our forum section here, along with a few comments of my own, in hopes of calling the matter to the attention of other editors.

Wow!
Are all scorpions flourescent under black light?

 
I believe they are.
Discover channel basics. Black lights are used to search out your boots and sleeping bags at night before you crawl into them to sleep.

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