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Scarab, Madera canyon - Ancognatha manca

Scarab, Madera canyon - Ancognatha manca
Madera Canyon, Mnt Baldy Trailhead, Pima County, Arizona, USA
July 20, 2008
Size: 22 mm

Moved from Masked Chafers.

Two days ago,
I finally found this guy in the collection of the South-West Research station of the Chiricahuas near Portal - I was just going to put his ID on him, when I found yours. Thank you!

Moved from Scarab Beetles.

Moved from Beetles.

I have several specimens of t
I have several specimens of this beetle from the Chiricahuas that I have collected over the years. I will be back there in a week, so if I encounter more, would anyone like to have me send one or two along for IDing?

Robyn Waayers

I think Phillip would be willing to
take a look, he's indicated as much.
I am also planning on a trip out there next week, and Eric Eaton might be interested - would you like to meat somewhere?

I replied to your E-mail addr
I replied to your E-mail address (the one on your web site). I'l check my mail in the morning to see if it went through. We're leaving 7 am tomorrow (and won't have much e-mail contact ability -- probably none, on the trip).

Great, got it
and answered per e mail!

I'm tempted to suggest the su
I'm tempted to suggest the subfamily Rutelinae. that or Dynastinae, but I don't see anything in the guide at first glance that resembles this. Cool find

thoughtt so too
actually Rutelinae is my idea, and to me more special then all those pretty Chrysinae

says Cyclocephala - assuming it is, it's a male; pull the tail, that'll nail it. I'm assuming that the appearance of independently moveable claws is an optical contusion. Great shot BTW.

I need some tutoring
with this tail-pulling and I donot want to practise on this single find - but I'll figure it out on more common species.

compare the elongate tarsi of this to any Ruteline, also the middle leg on the right has the claws splayed out - won't see that in rutelines, finally that head has a very typical Cyclocephala shape.

as for pulling tails - best if collected in alcohol [not the 100% stuff either, tends to make them stiff] - start with Phyllophaga, they have quite large intricate genitalia. Lay specimen on its back in a shallow dish of alcohol, reach up under the pygidium with forceps or a hook and pull - very quick and easy with a little practice. Trogids tend to be a little tougher - flat plate genitalia. All the Dynastines are easy and diagnostic.

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