Daniel Jantzen probably has more field experience with moths of the New World tropics than anyone. His influence in Costa Rica has probably generated many of the white witch records for that country. What he says about the white witch question:
- Larvae are almost certainly in the crown of Fabaceae host plants. Almost all of their relatives live the there - e.g., black witches are in the crowns of hosts at 10-20m.
- Larvae certainly cryptic, and nocturnally feeding.
- For above reasons, discovery is unlikely, unless by chance.