Papilio joanae--visual identification

[Roger Kuhlman]

I found the discussion about Papilio joanae (Ozark Swallowtail) to be very 
interesting. I have heard that this species is difficult to distinguish 
visually from Papilio polyxenes (Black Swallowtail). I was wondering if 
anyone on this list has digital pictures of both male and female joanae that 
they could put up on the web for public viewing. A side-by-side contrast 
with male and female Black Swallowtails of upperside and underside wing 
surfaces would be wonderful.

Roger Kuhlman
Ann Arbor, Michigan
2-5-01
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