Selenic, or xelxe, is a term for xenogender identifying people who have a exclusive attraction to other xenogender people.
History
Selenic was coined by Tumblr user genderplaylist on February 10th, 2019.
Flag
The flag was coined by Tumblr user grove-deactivated on October 4th, 2020. It has no confirmed meaning.
Resources
https://genderplaylist.tumblr.com/post/182720000256/xel-and-lxe-terms