Neotropical Butterflies

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 Post subject: Crescent or Metalmark
PostPosted: Mon Oct 31, 2016 6:18 pm 
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Joined: Sat Apr 07, 2007 10:03 am
Posts: 114
Location: Tucson, AZ
understory of rain forest at Sani Lodge
Attachment:
unknown butterfly.jpeg
unknown butterfly.jpeg [ 124.75 KB | Viewed 1543 times ]

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Richard C. Hoyer
Tucson, AZ
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 Post subject: Re: Crescent or Metalmark
PostPosted: Sun Nov 06, 2016 8:53 am 
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I think it's a metalmark, because the antennae are close together.


 
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 Post subject: Re: Crescent or Metalmark
PostPosted: Sun Nov 06, 2016 9:08 am 
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Joined: Sat Apr 07, 2007 10:03 am
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Location: Tucson, AZ
It looks fat, like a female, but the forelegs are brushlike – are those more like a male metalmark too? Or are those Nymphalid-like forelegs?

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Richard C. Hoyer
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 Post subject: Re: Crescent or Metalmark
PostPosted: Sun Nov 06, 2016 11:20 am 
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Male riodinidae have the first 2 legs brushlike, similar to Nymphalidae. Females don't, as I understand it, see DeVries Vol II, pg 37. Look in my Southern Amazonia book, most of the Euselasia only show 4 legs, these are males.


 
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 Post subject: Re: Crescent or Metalmark
PostPosted: Sun Nov 06, 2016 3:04 pm 
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how about Nymphidium hesperinum? David Geale just sent me this shot from tingo Maria, Peru, and it looks very close to yours. Too bad one of you didn't get the other side!
I'll post the shot in a separate post, can't figure out how to add a photo here.


 
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 Post subject: Re: Crescent or Metalmark
PostPosted: Sun Nov 06, 2016 3:39 pm 
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Location: Tucson, AZ
Looks like the closest match by far, even though there are some obvious differences. Maybe just a different subspecies?

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Richard C. Hoyer
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 Post subject: Re: Crescent or Metalmark
PostPosted: Sun Nov 06, 2016 3:48 pm 
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or different sex?


 
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 Post subject: Re: Crescent or Metalmark
PostPosted: Tue Nov 15, 2016 11:22 am 
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Joined: Tue Jan 15, 2008 9:30 am
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Kim wrote:
Male riodinidae have the first 2 legs brushlike, similar to Nymphalidae. Females don't, as I understand it, see DeVries Vol II, pg 37. Look in my Southern Amazonia book, most of the Euselasia only show 4 legs, these are males.


That is a general rule though. There are a few exceptions.


 
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