Pipe vine swallowtails in Pa or NJ?

[drdn at mail.utexas.edu]

Interesting!
   There is probably a genetic factor involved because the light form larvae
have not been reported from "The East" even though there are some rather hot,
bright, sunny habitats in Georgia and Florida.
............Chris Durden

Quoting Dale Clark <nardoz at earthlink.net>:

> I've found this *B. philenor* larval polymorphism here in north Texas as
> well but as far as I can tell the reason for the difference is where you
> find the larvae.  When oviposition occurs on *Aristolochia tomentosa* or
> other pipevines found in shaded areas the larvae are dark.  Larvae on
> low-growing species of *Aristolochia* such as *A. erecta* or *A. fimbriata*
> that are in the full sun will have the lighter colored orange/red variety. 
> I've reared them from a single female and get the two coloration
> differences by placing one in shade and one in full sun.
> 
> Dale Clark
> Dallas County Lepidopterists' Society
> www.dallasbutterflies.com
> 
> 
> 
> > [Original Message]
> > From: <drdn at mail.utexas.edu>
> > To: <agrkovich at tmpeng.com>
> > Cc: <Tondaleo at hotmail.com>; <leps-l at lists.yale.edu>
> > Date: 11/4/2005 10:40:58 PM
> > Subject: RE: [SPAM] - Re: Pipe vine swallowtails in Pa or NJ? - Found
> word(s) check out in the Text body
> >
> > Yes. In TX and AZ there is larval polymorphism. Most are normally dark
> but in
> > some areas (often sand barrens) there is an orange/red var. This has been
> noted
> > in the literature a number of times. So far nobody has come up with adult
> > characters that are correlated with these larval differences.
> > ..................Chris Durden
> >

 
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