[Odonata-l] Cerci models

[Mark McPeek]

Hi,

I thought some of you might be interested in the computer models of 
cerci we have been building.  Many have sent us specimens to scan for 
the Enallagma, and we have just finished a web application that allows 
the viewer to interact with the 3D cerci models. 
The front page is

http://anax.dartmouth.edu/~mcpeek/cerci/damselflyMating.html

If you click on the link at the top of the page titled "Models of 
Enallagma cerci", you go to a page showing the Enallagma phylogeny.  If 
you then click on a species name a popup window will appear that 
displays a 3D model of that species' right cercus.  You can then 
interact with the model to spin it around and look at it in 3D 
(directions at the bottom of the page if it's not working for you).  If 
you click on one of the internal nodes in the phylogeny, you will get a 
model of the evolutionary reconstruction of what the cercus for that 
ancestor is estimated to have been.  So check out the 15 million year 
history of cerci evolution in Enallagma.

Best wishes,

Mark