Encounter with a Black Witch

by Eric Neubauer

I recently got back from the TX/NM border region including Monahans Sandhills State Park. Not great timing for wolf spiders because only a few species were in or nearing their breeding season, but I was still able to add two species to my life list. There were other compensations:

Ascalapha odorata (Black Witch) is a huge moth. I had seen a couple of very worn ones in a dark alcove at Devils River last fall where they couldn’t be readily photographed. As I made my way down into a sand dune blowout, I flushed one that flew around for a while before settling down about 5′ away. Unbelievably it let me approach quite close. The photos were amazing and were a credit to the Olympus camera. Light levels were very low and the setting sun had already left most of the
blowout in shadow.

Not far away was a Euploca convolvulacea (Phlox heliotrope) which had only the bare essentials of a mature plant. Many plants were covered with hundreds of bloom.

I’ve known about the Black Witch for decades but never expected to see one, so never looked up the details. The range map on iNat is amazing and includes all of North and South America except the coldest extremes. It has even turned up on Wake Island in the eastern Pacific. It is quite a flier and apparently has some sort of northward migration in the fall.

Mine was in perfect condition, so it must have matured nearby rather than migrating there. There had been 8 previous observations scattered around Ward County, all in good condition suggesting there is a healthy local breeding population there.