nectar vs. sap

[Pierre le Roux]

You asked:
>Are there closely-related lepidoptera that show feeding preferences for sap vs.
>nectar?  I'm familiar with the anglewings' and emperors'  fondness for
>non-nectar sources of nourishment, but that feature seems fairly
>uniform in those taxa.  Are there other butterfly or moth groups that
>show variation in this diet choice?  I'm trying to examine the
>physiology of odor detection and memory in sap vs. nectar feeders, and
>would like to compare taxa as close as possible.
We have Charaxes butterflies in Africa that as a whole seem to prefer 
feeding on rotting fruit, carrion & faeces. Does this help? Let me 
know what info and how much do you require.  
 
Pierre le Roux Tel&Fax:+(27)-15-583-0084
P.O. Box 8
0929 Levubu
South Africa