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Clypeal notch?


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4 replies to this topic

#1 Offline Foogoo - Posted July 3 2015 - 10:54 AM

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I'm asking specifically for Camponotus but this can apply to any ant. Would somebody mind explaining with pictures what exactly the clypeal notch is? I've spent a good amount of time googling pictures, reading papers and forum posts but I'm still not positive what this notch is. Thanks.


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Camponotus vicinus, Crematogaster 1, Crematogaster 2, Formica francoeuri, *, *, Myrmecocystus testaceus, Novomessor cockerelli, Pheidole hyatti, Pogonomyrmex californicus, Pogonomyrmex rugosus, Solenopsis invicta


#2 Offline dspdrew - Posted July 3 2015 - 5:58 PM

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I took this picture of the clypeal notch on a Camponotus hyatti major a while back for an ID thread. This species is of the Myrmentoma subgenus which are all relatively small and have clypeal notches. The picture's not the best, but I think it shows it pretty clearly.

 

gallery_2_175_98590.jpg



#3 Offline Foogoo - Posted July 3 2015 - 6:08 PM

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Thank you! That helps a lot. It's the notch at the bottom of the clypeus, right about the madibles right?


Camponotus vicinus, Crematogaster 1, Crematogaster 2, Formica francoeuri, *, *, Myrmecocystus testaceus, Novomessor cockerelli, Pheidole hyatti, Pogonomyrmex californicus, Pogonomyrmex rugosus, Solenopsis invicta


#4 Offline Foogoo - Posted July 3 2015 - 6:09 PM

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The trouble I'm having is take for example this C. vicinus, looks like there is no notch, not even a shallow one. Am I missing something?

 

Camponotus_vicinus_casent0102789_head_1.


Camponotus vicinus, Crematogaster 1, Crematogaster 2, Formica francoeuri, *, *, Myrmecocystus testaceus, Novomessor cockerelli, Pheidole hyatti, Pogonomyrmex californicus, Pogonomyrmex rugosus, Solenopsis invicta


#5 Offline dspdrew - Posted July 3 2015 - 6:15 PM

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No, you're absolutely right. C. vicinus doesn't have a notch because it is not a Myrmentoma; it's a Tanaemyrmex.

 

And yes, based on your description, you were looking at the notch in my picture.






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